CN109357571B - Comfortable stab-resistant garment and manufacturing method thereof - Google Patents

Comfortable stab-resistant garment and manufacturing method thereof Download PDF

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Publication number
CN109357571B
CN109357571B CN201811298881.4A CN201811298881A CN109357571B CN 109357571 B CN109357571 B CN 109357571B CN 201811298881 A CN201811298881 A CN 201811298881A CN 109357571 B CN109357571 B CN 109357571B
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China
Prior art keywords
stab
fiber
resistant
fiber cloth
cloth
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CN201811298881.4A
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CN109357571A (en
Inventor
许冬梅
孙万民
刘元坤
方心灵
艾青松
陈虹
虎龙
王瑞岭
吴中伟
潘智勇
崔正浩
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Beijing Aerospace Rate Mechanical & Electrical Engineering Co ltd
Beijing Institute of Aerospace Testing Technology
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Beijing Aerospace Rate Mechanical & Electrical Engineering Co ltd
Beijing Institute of Aerospace Testing Technology
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H1/00—Personal protection gear
    • F41H1/02—Armoured or projectile- or missile-resistant garments; Composite protection fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1207—Heat-activated adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/20—All layers being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0246—Acrylic resin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/58—Cuttability
    • B32B2307/581—Resistant to cut
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2571/00—Protective equipment
    • B32B2571/02—Protective equipment defensive, e.g. armour plates or anti-ballistic clothing

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Laminated Bodies (AREA)
  • Manufacturing Of Multi-Layer Textile Fabrics (AREA)

Abstract

The invention provides comfortable stab-resistant clothing and a manufacturing method thereof, wherein the stab-resistant clothing comprises a coat and stab-resistant materials arranged in the coat, and the stab-resistant materials comprise stab-resistant chips and buffer materials; the chip is formed by orthogonal superposition of at least 16 layers of non-woven cloth according to the angle of 0 degree/90 degrees; the non-woven fabric consists of two layers of fiber cloth and a hot melt adhesive film; the hot melt adhesive film is arranged between the two layers of fiber cloth; the two layers of fiber cloth are orthogonally overlapped according to the angle of 0 degree/90 degrees; the fiber cloth is formed by bonding fiber yarns through an adhesive. The stab-resistant clothes have good comfort level and simple and easy manufacturing process.

Description

Comfortable stab-resistant garment and manufacturing method thereof
Technical Field
The invention relates to a protective product, in particular to comfortable stab-resistant clothing and a manufacturing method thereof.
Background
Stab-resistant clothing is protective equipment used to attack sharp instruments such as knives. According to its development course, stab-resistant suits can be divided into hard, semi-hard and soft stab-resistant suits. Among them, the hard and semi-hard stab-resistant clothes are excellent in stab-resistant performance, but the stab-resistant layer thereof is thick, and is poor in wearing comfort and insufficient in flexibility. Compared with the traditional hard and semi-hard stab-resistant materials, the soft stab-resistant garment is made of fiber composite materials, generally has the characteristics of light weight, larger unit absorbed energy, more convenience and comfort in wearing and excellent comprehensive performance, and therefore, the soft stab-resistant garment also conforms to the development trend of human body protective materials. However, throughout recent years research on soft stab-resistant garments: in pursuit of good stab resistance, the softness of the material is often sacrificed, thus resulting in the current soft stab resistant clothing still having poor comfort and flexibility.
According to research and study of documents, the stabproof materials of the soft stabproof clothes mainly comprise three main types: one is formed by pressing fiber composite materials to form a stab-resistant clothing material with excellent stab-resistant performance, but the flexibility of the material needs to be improved, such as a patent of Hebei Antai Fuyuan (application No. 201510770164.7), a patent of Suzhou Gaojia protection science and technology application (application No. 201510559550.1) and a patent of Zhao Dongqi application (application No. 201410555333.0); the second type is that a plurality of fiber composite materials are overlapped to form the stab-resistant material, the softness is improved a lot, but the flexibility of wearing the stab-resistant material is larger due to the thickness, such as a patent applied by Ningbo Dacheng new materials (application number 200810182555.7), a patent applied by Deng Resuscitation and the like (application number 201110107229.1) and a patent applied by Wangxiang and the like (application number 201020634833.0); the third category is that of stab-resistant materials formed by combining fiber composites with other polymeric materials, which aim to improve stab-resistance while maintaining the softness and comfort characteristics of the fiber materials as much as possible, for example, the patents of application numbers 200710075526.6 and 201110122849.2 mainly use shear thickening materials in combination with fiber fabrics to improve stab-resistance without sacrificing the softness of the materials. The third category of stab-resistant materials is the hot spot of current research.
The performance characteristics of the high-performance fiber and some special high polymer materials are utilized, and the corresponding special processing technology is combined, so that the stab-resistant performance and the softness can be achieved. However, the preparation methods and processes reported at present are complex and difficult to realize real application, so that the stab-resistant armor worn by protection personnel is still in a condition of poor comfort at present.
Disclosure of Invention
Aiming at the defects, the invention provides a comfortable stab-resistant garment and a manufacturing method thereof, which are used for overcoming the defects of poor comfort and complex preparation process of the stab-resistant garment in the prior art.
The invention provides comfortable stab-resistant clothing, which comprises a coat and stab-resistant materials arranged in the coat, wherein the stab-resistant materials comprise stab-resistant chips and buffer materials;
the chip is formed by orthogonal superposition of at least 16 layers of non-woven cloth according to the angle of 0 degree/90 degrees;
the non-woven fabric is composed of two layers of fiber cloth and 1 layer of hot melt adhesive film, wherein the two layers of fiber cloth are orthogonally overlapped according to the angle of 0/90 degrees, the hot melt adhesive film is placed between the two layers of fibers, and the hot melt adhesive film is uniformly melted in the two layers of fiber cloth in the overlapping process of the two layers of fiber cloth;
the fiber cloth is formed by bonding fiber yarns through an adhesive;
the hot melt adhesive film is selected from one or more of PA, PES, EVA and TPU; the thickness of the hot melt adhesive film is 0.01-0.25 mm, and the melting temperature is 100-140 ℃;
the stab-resistant garment disclosed by the invention has the advantages that the stab-resistant effect is exerted mainly through the stab-resistant chip, wherein the manufacturing process of the stab-resistant garment is divided into three steps, and firstly, the fiber yarns are bonded through the adhesive to obtain a first fiber cloth; then, spreading a hot melt adhesive film on the first fiber cloth rotated by 90 degrees, weaving second fiber cloth on the hot melt adhesive film according to the method for preparing the first fiber cloth, and finishing weaving the second fiber cloth to obtain the weftless fabric; and finally, orthogonal combination of the multiple layers of non-woven cloth to obtain the stab-resistant chip.
The stab-resistant garment only needs to add the hot melt adhesive film in the weaving process of the non-woven fabric, does not need to add or change any working procedure, and has the basic requirement of stab resistance when the non-woven fabric is woven, so that the stab-resistant chip can be obtained by only orthogonally superposing at least 16 layers of non-woven fabric in the subsequent preparation process. Therefore, in the manufacturing process of the stab-resistant clothing, the combination splicing of various materials is not needed, the special control on the superposition angle of the combination is not needed, and the secondary pressing of the non-woven fabric is not needed, so that the stab-resistant clothing not only keeps high comfort, but also is simple, convenient and feasible in the manufacturing process.
Specifically, the number of layers of the non-woven fabric can be specifically determined according to the protection effect required. For example, when meeting the GA68-2008 standard (24J) of the department of public security, the number of required layers of the non-woven fabric is 16-30; when the requirement of larger energy impact (33J) is met, the number of layers of the required pressing plate cloth is 30-40; and when the requirement of larger energy impact (43J) is met, the number of required pressing plate cloth layers is 30-40. The buffer material can be selected from comfort elastomers such as ethylene-vinyl acetate copolymer, chemical crosslinking polyethylene foam and the like.
The stab-resistant clothing of the invention does not form the stab-resistant material by a pressing process of a fiber composite material or by bonding and combining multiple or multiple layers of fiber composite materials, but obtains the soft stab-resistant material with the stab-resistant effect by using fiber yarns, an adhesive and a hot melt adhesive film as initial raw materials and sequentially processing through a non-woven cloth process. The stab-resistant material is not pressed, the original flexibility of the cloth sample is kept, and meanwhile, the limitation of flexibility of a large team of thickness is eliminated due to the fact that the multi-layer gluing and stacking are not carried out. The formed stab-resistant material not only has the obvious characteristic of simple process, but also has obviously improved effect on the aspect of softness and comfort.
Further, the adhesive is selected from one or more of waterborne polyurethane, waterborne polyvinyl acetate, waterborne polyolefin adhesive and waterborne acrylate. After a great deal of research by the inventor, the adhesive or the composition thereof can absorb external energy after being produced into the fiber cloth, and the impact strength of the fiber cloth is obviously improved.
Further, the mass percentage of the fiber yarns in the fiber cloth is 70-85%, the mass percentage of the adhesive in the fiber cloth is 15-30%, and the mass percentage of the first fiber cloth and the mass percentage of the second fiber cloth in the weftless cloth are 40-46%. In order to further improve the stab-resistant effect of the stab-resistant clothing, the manufacturing parameters of the non-woven fabric can be controlled when the non-woven fabric is manufactured, and specifically, (1) the use ratio of the cellosilk and the adhesive can be controlled. When the use ratio of the fiber yarns and the adhesive is controlled within the range, the use strength of the fiber cloth is obviously improved; (2) different types of hot melt adhesive films can be selected, the thickness and the type are different, and the promotion degree of the non-woven fabric stab-resistant performance is different. The parameter control of the two is combined, so that the non-woven fabric can be obtained only by the hot melt adhesive film and the orthogonal overlapped two layers of fiber cloth in the manufacturing process of the stab-resistant chip, and the over-elaborate operation that the material density is improved to achieve the protection effect through the pressing process, the multi-layer overlapping adhesion and the multi-angle overlapping in the prior art is avoided. The softness is also maintained while the complicated process is avoided.
Further, the solid content of the adhesive is 30-60%. In the adhesive, the water accounts for the rest except the effective components of the adhesive, and the viscosity of the adhesive can reach 50-300 mPa.s and the pH value reaches 6-8 by controlling the solid content of the adhesive within the range. Wherein, this viscosity can further guarantee adhesive and cellosilk glue and glue the intensity that becomes the fiber cloth, and this pH value can guarantee the infiltration nature of adhesive to the cellosilk, further strengthens sticky effect.
Further, the areal density of the laid fabric is 130-390g/m2. The surface density of the non-woven fabric can be changed by controlling the parameters of the adhesive, the fiber yarns and the hot melt adhesive film. As a result of the studies of the inventors, when the areal density of the non-woven fabric is controlled within the above range, the puncture preventing effect of the puncture preventing chip can be significantly enhanced.
Further, the fiber filaments constituting the fiber cloth are selected from one or more of high-performance polyethylene fibers, aramid fibers and polyarylate fibers. In the specific manufacture of the fiber cloth, the fiber yarn may preferably be aramid fiber. When the fiber filaments are a mixture of the above fibers, the ratio between the fibers is not limited by the present invention. Preferably, the polyethylene fibers, aramid fibers and polyarylate fibers have a strength of at least 35cN/dtex and a modulus of at least 1000 cN/dtex.
According to the invention, a specific adhesive is selected to be uniformly combined with fibers, and the hot melt adhesive film is added between two pieces of fiber cloth, so that the formed non-woven cloth has certain hardness on the surface and certain flexibility in the middle, the hardness on the surface can prevent the penetration of a tool tip, the toughness of the middle part enables impact energy to be diffused to the periphery of the fibers, the full absorption of energy is facilitated, the rapid advance of the tool tip and the tool tip is buffered, the penetration of the tool tip and the cutting effect of the tool tip on the material can be effectively resisted, and a good stab-resistant function is realized. According to the stab-resistant process and mechanism, the stab-resistant material skillfully utilizes the hardness and softness of the material, realizes the stab-resistant function under the condition of basically not changing the manufacturing process of the non-woven fabric, keeps the original softness of the non-woven fabric, and obviously improves the comfort level of the stab-resistant clothing.
The invention also provides a manufacturing method of any one of the comfortable stab-resistant clothes, which comprises the following steps:
1) soaking the fiber yarns into the adhesive, spreading the fiber yarns, fixing the fiber yarns on a cloth discharging machine, and drying the adhesive at 110 ℃ to obtain first fiber cloth; rotating the first fiber cloth by 90 degrees, spreading a hot melt adhesive film with the same size on the first fiber cloth, fixing the hot melt adhesive film with the first fiber cloth at the edge by using a double-sided adhesive tape, and preparing a second fiber cloth on the hot melt adhesive film according to the operation method of the first fiber cloth, wherein the difference is that the drying temperature is 120-150 ℃; when the second fiber cloth is dried, the obtained non-woven cloth is obtained;
2) orthogonally superposing at least 16 layers of the non-woven cloth according to the angle of 0/90 degrees to obtain the stab-resistant chip, and then combining the buffer material and the stab-resistant chip by using waterproof cloth and performing edge sealing and wrapping to obtain the stab-resistant material;
3) and arranging the stab-resistant material in the outer sleeve to obtain the comfortable stab-resistant garment.
Step 1) relates to a method for manufacturing the weftless fabric, specifically, after an adhesive prepared according to a target solid content is put into a glue tank, fiber yarns are subjected to glue dipping and spreading in the glue tank and fixed on a cloth arranging machine, and the fiber yarns are dried for 20min at 110 ℃ by a dryer on the cloth arranging machine to form the first fiber fabric. Rotating the first fiber cloth by 90 degrees, spreading hot melt adhesive films with the same size on the first fiber cloth, fixing the first fiber cloth with double-sided adhesive tapes at the edges, preparing a second fiber cloth on the hot melt adhesive films according to the operation of the method for preparing the first fiber cloth, wherein the drying temperature of the dryer is set according to the parameters of the hot melt adhesive films, which is different from the preparation of the first fiber cloth; when the second fiber cloth is dried, the obtained non-woven cloth is obtained.
In the step 2), cutting the multi-layer non-woven fabric according to the type, obtaining the stab-resistant chip through orthogonal superposition of [0 °/90 ° ], cutting the buffer material according to the size, placing the buffer material and the stab-resistant chip together according to the up-down relation, and sealing and wrapping the buffer material and the stab-resistant chip by using the waterproof fabric, thereby completing the manufacture of the stab-resistant material.
In the step 3), the stab-resistant material is fixed inside the coat according to the arrangement mode in the prior art, and particularly, the stab-resistant material can be fixed at the position of the chest, the position of the back and the like of the coat according to needs. The buffer material in the stab-resistant material is arranged on one side close to the human body, and the stab-resistant chip of the stab-resistant material is arranged on one side far away from the human body, namely, the external injury firstly contacts with the stab-resistant chip in the stab-resistant material firstly.
The manufacturing method is simple and easy to implement, and the fiber composite material is not pressed, or multiple layers of fiber composite materials are glued and laminated, or multi-angle layer by layer, but only a simple and controllable orthogonal laminating process is adopted, so that the process flow of the stab-resistant material is simple and convenient, and the preparation process of stab-resistant clothes is innovated.
Further, in order to enhance the stab-resistant effect, when first fiber cloth and second fiber cloth are produced by fiber yarn gum dipping, the fiber yarn is controlled to account for 70-85% of the first fiber cloth by mass, the adhesive accounts for 15-30% of the first fiber cloth by mass, and the first fiber cloth accounts for 40-46% of the weftless cloth by mass; the mass percentage of the fiber yarns in the second fiber cloth is 70-85%, the mass percentage of the adhesive in the second fiber cloth is 15-30%, and the mass percentage of the second fiber cloth in the weftless cloth is 40-46%; the hot melt adhesive film accounts for 8-20% of the non-woven fabric by mass, and the thickness of the hot melt adhesive film is 0.01-0.25 mm. The fiber cloth manufactured according to the proportion not only can achieve good stab-resistant effect, but also has the bending-resistant length of 6 cm-18 cm, and obviously improves the comfort of stab-resistant clothing.
The implementation of the invention at least comprises the following advantages:
1. the stab-resistant functional material only adopts a weftless fabric structure form, avoids the process complexity caused by composite material recompression, multi-layer fiber composite material gluing superposition, or multi-angle layer-by-layer superposition and the like, and has the advantages of simple and easily obtained manufacturing raw materials, simple and easily operated manufacturing process and high controllability of process parameters.
2. The stab-resistant clothing is high in comfort level, the bending length of the stab-resistant clothing is as low as 6-18 cm, and the comfort level and flexibility of users are obviously improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The following examples used the raw materials of the cellosilk and the adhesive, and the specific manufacturers and specifications were as follows:
fiber yarn: aramid fiber, available from Aksu of the Netherlands under the trade name Twaron-2000, linear density 1680dtex, fiber diameter of 9-12 gm;
adhesive: waterborne polyurethane, bayer corporation.
Hot melt adhesive film: TPU, Suzhou Huiyang adhesive products Ltd
Example 1
The manufacturing steps of the stab-resistant garment of the embodiment are as follows:
1) manufacture of non-woven cloth
Preparing a glue solution with a solid content of 40% by using a water-based polyurethane adhesive, putting the glue solution into a glue tank, carrying out gum dipping, spreading and unwinding on aramid fibers by the glue tank, fixing the aramid fibers on a cloth discharging machine, uniformly coating the glue solution by using a scraper blade, and completely drying at 110 ℃ to obtain a first fiber cloth; rotating the first fiber cloth by 90 degrees, spreading hot melt adhesive films with the same size on the first fiber cloth, fixing the first fiber cloth with double-sided adhesive tapes at the edges, and preparing a second fiber cloth on the hot melt adhesive film with the thickness of 0.08mm by operating according to the method for preparing the first fiber cloth, wherein the difference is that the drying temperature is 130 ℃; when the second fiber cloth is dried, the obtained non-woven cloth is obtained; wherein the mass ratio of the aramid fiber to the adhesive is 3: 1, and the surface density of the non-woven fabric is 260g/m2The mass percentage of the hot melt adhesive film in the non-woven fabric is 12%.
2) Manufacture of chip for preventing pricking
Cutting the non-woven cloth into 50cm multiplied by 50cm, overlapping 25 layers of non-woven cloth according to the direction of 0 degree/90 degrees, then overlapping the non-woven cloth and the buffer material up and down, and packaging and fixing by waterproof cloth to obtain the stab-resistant chip.
The stab-resistant core piece is inserted and fixed at the position of the chest of the coat, and the stab-resistant garment of the embodiment is manufactured.
The stab-resistant clothes manufactured in the embodiment are subjected to stab-resistant performance tests, wherein the stab-resistant performance tests are carried out according to the standard of the public security department GA68-2008 "police stab-resistant clothes", and aim to test the stab-resistant clothes manufactured in the invention so as to meet the requirement of stab-resistant clothes issued by the public security department.
Meanwhile, the bending length of the non-woven fabric of the stab-resistant suit is tested according to a slope method in GB/T18318-2001, namely, a long and narrow fabric sample with a certain size is used as a cantilever beam, the bending length of the fabric sample can be tested and calculated according to the flexibility of the cantilever beam, and the bending length is used as an index of the softness of the fabric, wherein the smaller the bending length value is, the better the softness of the fabric is.
The results of the above tests are shown in Table 1.
Example 2
The manufacturing steps of the stab-resistant garment of the embodiment are as follows:
1) manufacture of non-woven cloth
Preparing a glue solution with a solid content of 30% by using a water-based polyurethane adhesive, putting the glue solution into a glue tank, carrying out gum dipping, spreading and unwinding on aramid fibers by the glue tank, fixing the aramid fibers on a cloth discharging machine, uniformly coating the glue solution by using a scraper blade, and completely drying at 110 ℃ to obtain a first fiber cloth; rotating the first fiber cloth by 90 degrees, spreading hot melt adhesive films with the same size on the first fiber cloth, fixing the first fiber cloth with double-sided adhesive tapes at the edges, and preparing a second fiber cloth on the hot melt adhesive film with the thickness of 0.05mm by operating according to the method for preparing the first fiber cloth, wherein the difference is that the drying temperature is 120 ℃; when the second fiber cloth is dried, the obtained non-woven cloth is obtained; wherein the mass ratio of the aramid fiber to the adhesive is 4: 1, and the surface density of the non-woven fabric is 260g/m2The mass percentage of the hot melt adhesive film in the non-woven fabric is 10%.
2) Manufacture of chip for preventing pricking
Cutting the non-woven cloth into 50cm multiplied by 50cm, overlapping 25 layers of non-woven cloth according to the direction of 0 degree/90 degrees, then overlapping the non-woven cloth and the buffer material up and down, and packaging and fixing by waterproof cloth to obtain the stab-resistant chip.
The stab-resistant core piece is inserted and fixed at the position of the chest of the coat, and the stab-resistant garment of the embodiment is manufactured.
The stab-resistant clothes manufactured in the embodiment are subjected to stab-resistant performance tests, wherein the stab-resistant performance tests are carried out according to the standard of the public security department GA68-2008 "police stab-resistant clothes", and aim to test the stab-resistant clothes manufactured in the invention so as to meet the requirement of stab-resistant clothes issued by the public security department.
Meanwhile, the bending length of the non-woven fabric of the stab-resistant suit is tested according to a slope method in GB/T18318-2001, namely, a long and narrow fabric sample with a certain size is used as a cantilever beam, the bending length of the fabric sample can be tested and calculated according to the flexibility of the cantilever beam, and the bending length is used as an index of the softness of the fabric, wherein the smaller the bending length value is, the better the softness of the fabric is.
The results of the above tests are shown in Table 1.
Example 3
The manufacturing steps of the stab-resistant garment of the embodiment are as follows:
1) manufacture of non-woven cloth
Preparing a glue solution with a solid content of 30% by using a water-based polyurethane adhesive, putting the glue solution into a glue tank, carrying out gum dipping, spreading and unwinding on aramid fibers by the glue tank, fixing the aramid fibers on a cloth discharging machine, uniformly coating the glue solution by using a scraper blade, and completely drying at 110 ℃ to obtain a first fiber cloth; rotating the first fiber cloth by 90 degrees, spreading hot melt adhesive films with the same size on the first fiber cloth, fixing the first fiber cloth with double-sided adhesive tapes at the edges, and preparing a second fiber cloth on the hot melt adhesive film with the thickness of 0.05mm by operating according to the method for preparing the first fiber cloth, wherein the difference is that the drying temperature is 120 ℃; when the second fiber cloth is dried, the obtained non-woven cloth is obtained; wherein the mass ratio of the aramid fiber to the adhesive is 4: 1, and the areal density of the non-woven fabric is 330g/m2The mass percentage of the hot melt adhesive film in the non-woven fabric is 8%.
2) Manufacture of chip for preventing pricking
Cutting the non-woven cloth into 50cm multiplied by 50cm, superposing 20 layers of non-woven cloth according to the direction of 0 degree/90 degrees, then superposing the non-woven cloth and a buffer material up and down, and packaging and fixing by waterproof cloth to obtain the stab-resistant chip.
The stab-resistant core piece is inserted and fixed at the position of the chest of the coat, and the stab-resistant garment of the embodiment is manufactured.
The stab-resistant clothes manufactured in the embodiment are subjected to stab-resistant performance tests, wherein the stab-resistant performance tests are carried out according to the standard of the public security department GA68-2008 "police stab-resistant clothes", and aim to test the stab-resistant clothes manufactured in the invention so as to meet the requirement of stab-resistant clothes issued by the public security department.
Meanwhile, the bending length of the non-woven fabric of the stab-resistant suit is tested according to a slope method in GB/T18318-2001, namely, a long and narrow fabric sample with a certain size is used as a cantilever beam, the bending length of the fabric sample can be tested and calculated according to the flexibility of the cantilever beam, and the bending length is used as an index of the softness of the fabric, wherein the smaller the bending length value is, the better the softness of the fabric is.
The results of the above tests are shown in Table 1.
Comparative example 1
The manufacturing steps of the stab-resistant garment of the comparative example are as follows:
1) manufacture of non-woven cloth
Preparing a glue solution with a solid content of 40% by using a water-based polyurethane adhesive, putting the glue solution into a glue tank, carrying out gum dipping, spreading and unwinding on aramid fibers by the glue tank, fixing the aramid fibers on a cloth discharging machine, uniformly coating the glue solution by using a scraper blade, and completely drying at 110 ℃ to obtain a first fiber cloth; rotating the first fiber cloth by 90 degrees, and then operating according to the method for preparing the first fiber cloth to prepare a second fiber cloth; when the second fiber cloth is dried, the obtained non-woven cloth is obtained; wherein the mass ratio of the aramid fiber to the adhesive is 3: 1, and the areal density of the non-woven fabric is 230g/m2。
2) Manufacture of chip for preventing pricking
Cutting the non-woven cloth into 50cm multiplied by 50cm, overlapping 25 layers of non-woven cloth according to the direction of 0 degree/90 degrees, then overlapping the non-woven cloth and the buffer material up and down, and packaging and fixing by waterproof cloth to obtain the stab-resistant chip.
The stab-resistant core piece is inserted and fixed at the position of the chest of the coat, and the stab-resistant garment of the embodiment is manufactured.
The same test method as that of example 1 was used to perform the stab-resistant and comfort performance tests on the stab-resistant armor of the comparative example, and the test results are specifically shown in table 1.
Comparative example 2
The manufacturing steps of the stab-resistant garment of the comparative example are as follows:
1) manufacture of non-woven cloth
Preparing a glue solution with a solid content of 40% by using a water-based polyurethane adhesive, putting the glue solution into a glue tank, carrying out gum dipping, spreading and unwinding on aramid fibers by the glue tank, fixing the aramid fibers on a cloth discharging machine, uniformly coating the glue solution by using a scraper blade, and completely drying at 110 ℃ to obtain a first fiber cloth; rotating the first fiber cloth by 90 degrees, spreading hot melt adhesive films with the same size on the first fiber cloth, fixing the first fiber cloth with double-sided adhesive tapes at the edges, and preparing a second fiber cloth on the hot melt adhesive film with the thickness of 0.08mm by operating according to the method for preparing the first fiber cloth, wherein the difference is that the drying temperature is 130 ℃; when the second fiber cloth is dried, the obtained non-woven cloth is obtained; wherein the mass ratio of the aramid fiber to the adhesive is 3: 1, and the surface density of the non-woven fabric is 260g/m2The mass percentage of the hot melt adhesive film in the non-woven fabric is 12%.
2) Manufacture of press-plate cloth
Cutting the non-woven fabric into 50cm multiplied by 50cm, placing the non-woven fabric between two layers of isolating films, then placing the non-woven fabric in a mould pressing machine, carrying out hot pressing for 15min at 150 ℃ and 3MPa, then carrying out cold pressing for 3min at normal temperature and 5MPa, and discharging the films to obtain the aramid fiber pressing plate fabric.
3) Manufacture of stab-resistant garments
And (3) superposing the 25 laminated plate cloth in the direction of [0 °/90 ° ], then superposing the laminated plate cloth with a buffer material up and down, and packaging and fixing the laminated plate cloth by using waterproof cloth to obtain the stab-resistant material.
The stab-resistant material was inserted and fixed to the chest of the coat to produce the stab-resistant garment of this comparative example.
The same test method as that of example 1 is adopted to perform the puncture-proof, bulletproof and comfort performance tests on the double-protection garment of the comparative example, and the test results are specifically shown in table 1.
Comparative example 3
The manufacturing steps of the stab-resistant garment of the comparative example are as follows:
1) manufacture of non-woven cloth
Preparing a glue solution with the solid content of 40% by using a water-based polyurethane adhesive, putting the glue solution into a glue tank, and processing aramid fibersPassing through a glue tank for gum dipping, spreading, unwinding and fixing on a cloth discharging machine, simultaneously uniformly coating glue solution by using a scraper blade, and completely drying at 110 ℃ to obtain first fiber cloth; rotating the first fiber cloth by 90 degrees, preparing a second fiber cloth according to the operation of the method for preparing the first fiber cloth, and obtaining the weftless fabric when the second fiber cloth is dried; wherein the mass ratio of the aramid fiber to the adhesive is 3: 1, and the surface density of the non-woven fabric is 260g/m2。
2) Manufacture of press-plate cloth
Cutting a hot melt adhesive film with the thickness of 0.08mm (the hot melt adhesive film accounts for 12% of the mass of the non-woven fabric) and the non-woven fabric into the size of 50cm multiplied by 50cm respectively, laminating and placing a layer of hot melt adhesive film and a layer of non-woven fabric, then placing the hot melt adhesive film and the non-woven fabric together between two layers of isolating films, then placing the isolating films in a mould pressing machine, carrying out hot pressing for 15min at the temperature of 150 ℃ and the pressure of 3MPa, finally carrying out cold pressing for 3min at the normal temperature and the pressure of 5MPa, and discharging the.
3) Manufacture of stab-resistant garments
And (3) superposing the 25 laminated plate cloth in the direction of [0 °/90 ° ], then superposing the laminated plate cloth with a buffer material up and down, and packaging and fixing the laminated plate cloth by using waterproof cloth to obtain the stab-resistant material.
The stab-resistant material was inserted and fixed to the chest of the coat to produce the stab-resistant garment of this comparative example.
The same test method as that of example 1 is adopted to perform the puncture-proof, bulletproof and comfort performance tests on the double-protection garment of the comparative example, and the test results are specifically shown in table 1.
TABLE 1 comparison of stab resistance and softness results for samples
Figure BSA0000173178110000101
Figure BSA0000173178110000111
Note: represents a penetration in the test, with no remaining layers.
From the comparison results in table 1, it can be seen that: the invention can manufacture the stab-resistant clothes with the stab-resistant function by controlling the type and the process flow of the adhesive, and the preparation process of the stab-resistant clothes is simple and easy to implement and has good comfort.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (3)

1. A comfortable stab-resistant garment is characterized by comprising a coat and a stab-resistant material arranged in the coat, wherein the stab-resistant material comprises a stab-resistant chip and a buffer material;
the stab-resistant material is formed by orthogonally superposing at least 16 layers of non-woven fabrics according to 0 degree/90 degrees;
the non-woven fabric is composed of two layers of fiber cloth and one layer of hot melt adhesive film, wherein the two layers of fiber cloth are orthogonally overlapped according to the angle of 0/90 degrees, the hot melt adhesive film is placed between the two layers of fiber cloth, and the hot melt adhesive film is uniformly melted in the two layers of fiber cloth in the overlapping process of the two layers of fiber cloth;
the fiber cloth is formed by bonding fiber yarns through an adhesive;
the hot melt adhesive film is selected from one or more of PA, PES, EVA and TPU; the thickness of the hot melt adhesive film is 0.01-0.25 mm, and the melting temperature is 100-140 ℃;
the hot melt adhesive film accounts for 8-20% of the non-woven fabric by mass percent;
the areal density of the laid fabric is 130-390g/m2The bending length of the laid fabric is 6-18 cm;
the fiber filaments forming the fiber cloth are selected from one or more of polyethylene fibers, aramid fibers and polyarylate fibers;
the strength of the polyethylene fiber, the aramid fiber and the polyarylate fiber is at least 35cN/dtex, and the modulus is at least 1100 cN/dtex;
the manufacturing method of the comfortable stab-resistant suit comprises the following steps:
1) soaking the fiber yarns into the adhesive, spreading the fiber yarns, fixing the fiber yarns on a cloth discharging machine, and drying the adhesive on the fiber yarns by a dryer at the drying temperature of 110 ℃ to obtain first fiber cloth; rotating the first fiber cloth by 90 degrees, spreading a hot melt adhesive film with the same size on the first fiber cloth, fixing the hot melt adhesive film with the first fiber cloth at the edge by using a double-sided adhesive tape, and preparing a second fiber cloth on the hot melt adhesive film according to the method for preparing the first fiber cloth, wherein the difference is that the drying temperature is 120-150 ℃; when the second fiber cloth is dried, the obtained non-woven cloth is obtained;
2) orthogonally superposing at least 16 layers of the non-woven cloth according to the angle of 0/90 degrees to obtain the stab-resistant chip, and then combining the buffer material and the stab-resistant chip by waterproof cloth and carrying out edge sealing and wrapping to obtain the stab-resistant material;
3) arranging the stab-resistant material in the outer sleeve to obtain the comfortable stab-resistant garment;
the mass percentage of the fiber filaments of the first fiber cloth in the first fiber cloth is 70-85%, the mass percentage of the adhesive of the first fiber cloth in the first fiber cloth is 15-30%, and the mass percentage of the first fiber cloth in the weftless cloth is 40-46%;
the mass percentage of the fiber filaments of the second fiber cloth in the second fiber cloth is 70-85%, the mass percentage of the adhesive of the second fiber cloth in the second fiber cloth is 15-30%, and the mass percentage of the second fiber cloth in the weftless cloth is 40-46%.
2. The comfortable stab-resistant garment according to claim 1, wherein said adhesive is selected from one or more of the group consisting of aqueous polyurethane, aqueous polyvinyl acetate, aqueous polyolefin adhesive and aqueous acrylate.
3. A comfortable stab-resistant garment according to claim 1 or 2, wherein said adhesive has a solids content of 30-60%.
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CN110786571B (en) * 2019-11-21 2022-04-22 北京航天雷特机电工程有限公司 Light and thin soft stab-resistant garment and preparation method thereof
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