TWI699196B - Die and finished product for manufacturing thin layer with diversion - Google Patents

Abstract

A mold for manufacturing a thin layer with a flow guide is suitable for being installed on a conveying device of a system for manufacturing the thin layer with a flow guide, and a plurality of fibers can be arranged on the mold to form the flow guide For thin layer objects, the mold includes a base layer and a mesh layer. The base layer includes a first surface, a second surface opposite to the first surface, and a plurality of protrusions protruding from the first surface away from the second surface. The mesh layer includes two opposite surfaces and a plurality of meshes penetrating the surfaces, and the mesh layer is removably arranged on the base layer, and the meshes are sleeved with the protrusions. In addition, the present invention also provides a thin layer with a flow guide made by the aforementioned mold.

Description

Die and finished product for manufacturing thin layer with diversion

The present invention relates to a mold, in particular to a mold for manufacturing a thin layer with a flow guide, and the thin layer with a flow made by the mold.

Generally used in materials such as diapers and other sanitary products, a non-woven fabric sheet is usually formed by stacking a plurality of semi-fused fibers on each other. The non-woven fabric sheet itself has many small pores and has the effect of air permeability and liquid penetration. In order to increase the air permeability and drainage effect of the non-woven film, the amount of fiber or semi-melted fiber used is generally reduced, but this method will affect the strength of the non-woven film and the uniformity of the gap between the fiber arrangements, elasticity, or ductility. ; Or by increasing the surface uneven structure of the non-woven film to achieve the drainage effect, but this method is easy to accumulate heat in the user’s skin and uneven structure, therefore, how to make a thin non-woven fabric with good drainage and breathability Layers are a problem to be solved by those skilled in the art.

Therefore, the purpose of the present invention is to provide a thin Layer mold.

Therefore, the present invention is used for manufacturing a mold with a diversion sheet, which is suitable for being installed on a conveying device of a system for manufacturing the diversion sheet, and a plurality of semi-molten fibers can be set on the mold. To form the thin layer with diversion, the mold includes a base layer and a mesh layer.

The base layer includes a first surface, a second surface opposite to the first surface, and a plurality of protrusions protruding from the first surface away from the second surface.

The mesh layer includes two opposite surfaces and a plurality of meshes penetrating the surfaces, and the mesh layer is removably arranged on the base layer, and the meshes are sleeved with the protrusions.

In addition, the present invention also provides a thin-layered article with diversion made by the aforementioned mold. The thin-layered article with diversion includes a main body and a plurality of hollow protrusions.

The body includes two opposite upper and lower surfaces, and a plurality of flat portions spaced apart from each other.

The hollow protrusions are respectively formed on the flat portion, and the cross section is tapered from the upper surface toward the lower surface.

The effect of the present invention is that the mold sets the mesh layer on the base layer, and allows the meshes to be respectively covered with the protrusions, so that subsequent fibers are directly formed when they are covered on the mold. Or break the hole to form a diversion thin layer, which does not affect the original production rate, and does not require secondary processing to increase the cost. The diversion thin layer has a flat Part, and a plurality of hollow protrusions respectively located on the flat parts. The flat parts can directly contact the user’s skin to increase the contact area, which is conducive to heat exchange, and can transfer heat or water in one direction through the hollow protrusions. The diversion method is directly discharged, so that the hot air is not easy to accumulate and can effectively improve the drainage effect.

2: Mould

21: Grassroots

211: first side

212: second side

213: Bulge

22: Mesh layer

220: Mesh

221: Surface

222: Surface

3: Conveying device

31: The first shaft assembly

32: second shaft assembly

4: Fiber output device

40: Semi-melted fiber

41: Extruder

42: Nozzle

43: molten raw material

5: Fan device

6: Thin layer with diversion

61: body

611: upper surface

612: lower surface

62: flat part

63: Hollow convex column

630: broken hole

631: base surface

64: Groove

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: FIG. 1 is a three-dimensional schematic diagram illustrating a first implementation of the present invention for manufacturing molds with diversion thin layers Example; Figure 2 is a schematic cross-sectional view to assist in explaining the first embodiment of Figure 1; Figure 3 is a schematic cross-sectional view illustrating a second embodiment of the present invention for manufacturing a mold with diversion thin layer; 4 is a schematic cross-sectional view illustrating that the mold of the first embodiment of FIG. 1 is set on a forming system; FIG. 5 is a schematic cross-sectional view illustrating the use of the mold of the first embodiment of FIG. 1 6 is a schematic cross-sectional view illustrating the first embodiment of the mold of the first embodiment of FIG. 1 made by the needle rolling method. One aspect of the layer.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are represented by the same numbers.

Referring to FIGS. 1 and 2, the present invention is used to manufacture a first embodiment of a mold 2 with a diversion sheet. The mold 2 includes a base layer 21 and a mesh layer 22.

The base layer 21 includes a first surface 211, a second surface 212 opposite to the first surface 211, and a plurality of protrusions 213 protruding from the first surface 211 in a direction away from the second surface 212. Specifically, in the first embodiment, the first surface 211 of the base layer 21 is a flat surface, and the protrusions 213 are gradually cross-sectional from the first surface 211 to a direction away from the second surface 212. Cone that stretches to the ground.

It should be noted that the arrangement of the protrusions 213 is not particularly limited, and the arrangement or arrangement density can be changed depending on the application of the product. In addition, in addition to making the first surface 211 of the base layer 21 a flat surface, a plurality of micro bumps (not shown) can be further provided around the protrusions 213 of the first surface 211 according to requirements.

The mesh layer 22 includes two opposite surfaces 221, 222, and a plurality of meshes 220 penetrating the surfaces 221, 222, and the mesh layer 22 is removably disposed on the base layer 21, and allows the The meshes 220 are respectively sleeved with the protrusions 213. Preferably, the meshes 220 respectively allow the protrusions 213 to be located in the center of the meshes 220, and the protrusions 213 are not in contact with the mesh. The like layer 22 is in contact.

It should be noted that the arrangement or arrangement density of the meshes 220 can be The protrusions 213 change correspondingly, and the shape and aspect of the meshes 220 are not particularly limited. They may be changed into different shapes or patterns according to requirements, or may be non-planar in a three-dimensional concave-convex shape. Moreover, the meshes 220 and the protrusions 213 do not have to be correspondingly nested in a one-to-one manner, and a plurality of protrusions 213 may be nested correspondingly to one mesh 220. In this embodiment, The hexagonal planar shape and the meshes 220 and the protrusions 213 are respectively set in a one-to-one manner as examples for illustration.

Referring to FIG. 3, a second embodiment of the present invention for manufacturing a mold 2 with a flow-guiding thin layer is substantially the same as the first embodiment. The difference lies in the configuration of the protrusions 213. Specifically, the heights of the protrusions 213 are different from each other, and the maximum diameters of the cones of the protrusions 213 are also different from each other, and the distribution area or arrangement of the protrusions 213 can also be arranged according to the application. Specific patterns.

Referring to FIG. 4, the mold 2 is suitable for being installed on a conveying device 3 of a system for manufacturing thin-layer objects and used to make a diversion thin-layer object 6, which is suitable for the method of making the diversion thin-layer object 6 It may be spun-bond or melt blown, but it is not limited to this. In this embodiment, the production of the thin layer 6 with a flow-guiding method is taken as an example for illustration.

Specifically, the conveying device 3 includes a first shaft assembly 31 and a second shaft assembly 32 that are arranged at intervals and parallel to each other. The mold 2 is arranged around the first shaft assembly 31 and the second shaft assembly 32 so that the mold 2 can be driven by the conveying device 3. When set up, the mesh layer 22 is stacked on the base layer 21, and the base layer 21 The second surface 212 of is disposed on the first shaft assembly 31 and the second shaft assembly 32 adjacent to the conveying device 3. It should be noted here that the conveying device 3 can also have only a single shaft assembly in the form of a roller, and the mold 2 is arranged around a single shaft assembly (not shown). Here, the conveying device 3 has Take two shaft components as an example for illustration.

A fiber output device 4 of the system for manufacturing a thin layer is located above the mold 2 for outputting a plurality of semi-molten fibers 40 that can form the flow-guiding thin layer 6 to the mold 2. Specifically, the fiber output device 4 includes an extruder 41 for extruding the molten material 43 to form a melt, and an extruder 41 connected to the extruder 41 and used for forming the extruder 41. The melt further forms the nozzles 42 of the semi-melted fibers 40. Among them, the fibers contained in the fiber output device can be long fibers, short fibers, or fibers with different functions that can be laminated on the upper and lower layers.

In detail, when the semi-melted fibers 40 fall onto the mold 2 from the nozzle 42, a fan device 5 of the thin layer manufacturing system can be used to blow the semi-melted fibers 40 so that the Wait for the semi-melted fiber 40 to fall flat on the mold 2 to form the thin layer 6 with a flow guide. It should be noted that during the manufacturing process, the needle surfaces of the protrusions 213 of the film tool 2 can be further heated or subjected to off-line treatment to the needle surfaces of the protrusions 213 to make it more advanced in the processing process. Easy to form or form holes.

Referring to FIG. 5, FIG. 5 shows the flow guiding thin layer 6 manufactured by the melt-blowing method using the system of FIG. 4, and the structure of the flow guiding thin layer 6 includes a body 61 and a plurality of formed on the The hollow protrusion 63 of the main body 61, and a plurality of from the upper surface 611 to the lower surface 612 is recessed and surrounds the grooves 64 of the hollow protrusions 63 respectively. Specifically, the main body 61 includes two opposite upper surfaces 611 and a lower surface 612, and a plurality of flat portions 62 spaced apart from each other. The hollow protrusions 63 are respectively formed on the flat portions 62, and the cross section is formed by the upper surface. 611 tapers toward the lower surface 612. Since the deflector sheet 6 of FIG. 5 is manufactured by the system of FIG. 4 and the mold 2 of the first embodiment, when the semi-melted fibers 40 naturally fall on the protrusions 213 When the hollow protrusions 63 are formed, because the protrusions 213 are tapered, a base surface 631 of each of the hollow protrusions 63 formed has a hole 630. Due to the manufacturing process, the height of the base surface 631 will be slightly higher than the lower surface 612. Therefore, when necessary, the tips of the protruding portions 213 of the base layer 21 and the mesh layer 22 The surface is flush, or directly to the thin layer with diversion material 6, later processing and brushing the way, so that the base surface 631 and the lower surface 612 are aligned without protruding the lower surface 612; and when the first When the mold 2 of the second embodiment is used to manufacture the thin layer 6 with a flow guide, the shapes of the protrusions 213 of the mold 2 of the second embodiment are different from each other, so that the thin layer with flow guide The height and diameter of the hollow protrusions 63 of the layer 6 also change accordingly. It can be seen from this that when the present invention manufactures the thin layer 6 with a flow guide, it can be directly formed or broken in one go during fiber laying, which not only does not affect the original production rate, nor does it require secondary processing to increase the cost.

The diversion sheet 6 can be composed of a single material or a composite material, and is not particularly limited, and the cloth types suitable for the diversion sheet 6 can be non-woven fabric, composite non-woven fabric, woven fabric , Or cloth paste film, and constitute the guide thin layer 6 The material can be selected from natural cotton, natural wood pulp, natural fiber, man-made fiber, or a combination of any of the foregoing materials depending on the application of the product.

It should be noted that when the thin layer with diversion material 6 is made, it can be processed in stages according to the requirements of the finished product. That is, the stage of making the thin layer with diversion layer 6 in Figure 4 can be regarded as the first stage of production. In the latter part of the operation, an additional film layer is further formed on the thin layer with diversion material 6 to form a composite film layer, and composite holes are broken. For example, if the film layer is to be placed on the thin-layered object 6 with flow guiding, it is only necessary to attach the layer to the flat portions 62 of the thin-layered flow guiding object 6 in a later processing method. To achieve the effect of the composite film layer, in practice, it can also be operated with a hot pressing wheel assembly (not shown) to achieve a better bonding effect of the composite film layer. Among them, the hot pressing wheel assembly can also be used only on the fiber Direct hot pressing on the cloth surface to improve the bonding strength between the fibers of the film. Furthermore, if the film layer is to be placed under the guide sheet 6, it is only necessary to set the film layer on the mold 2 before the semi-melted fiber 40 falls on the mold 2. The layer will first be formed by the mold 2 and broken, and then the semi-fused fiber 40 will form a composite film layer.

It is worth mentioning that, since the mold 2 is composed of two layers of the base layer 21 stacked on the mesh layer 22, and the meshes 220 are respectively covered with the protrusions 213, it should be When the mold 2 manufactures the thin layer 6 with a flow guide, the hollow protrusions 63 can be located on the flat portions 62 respectively, and when the first surface 211 of the base layer 21 is a flat surface, the semi-melted fibers When 40 falls on the first surface 211, the flat flat portions 62 can be formed, so that when the thin-layered object 6 is used, the flat portions 62 The lower surface 612 and the base surface 613 of the hollow columns 63 are used for contacting the user’s skin, increasing the overall contact area, which facilitates heat exchange, and because the area in contact with the user’s skin is increased, there is a space for accumulating heat Relatively reduced, the hot air or water can be discharged directly through the hollow convex pillars 63 in a unidirectional flow, so that the hot air is not easy to accumulate and can effectively improve the drainage effect. It can also increase the overall contact area of the surface. Used for other applications and functions; and when there are a plurality of micro bumps around the protrusions 213 of the base layer 21, the hollow protrusions on the upper surface 611 of the diversion sheet 6 There are a number of micro-protrusions around 63, and the upper surface 611 is changed to contact the user’s skin, which can increase the effective area and drainage effect of the flat portion 62. When it comes into contact with the user’s skin, The skin in contact is drier and can be used for other applications and functions with the appearance of these micro bumps.

It should be particularly noted here that the method of making the deflector sheet 6 is not limited to the aforementioned spunbond method or melt-blown method, for example, hot air bonded or needle-punch method may be used. ) To make the thin layer 6 with diversion. When using hot air method or needle rolling method, long fibers or short fibers can be blown through the air flow to form a cotton web layer, and then the mold 2 (see Figure 1) The protrusions 213 of the cotton mesh layer are directly formed into holes by hot air method or pin-like rolling method.

Referring to Fig. 6, the first implementation of the mold 2 (see Fig. 1) is used as an example to illustrate the needle rolling process. When the hot-air method or the needle rolling method is used to produce the thin layer 6 with diversion, the Mold 2 to further adjust the hollow convex pillars 63 with the diversion sheet 6 depth. In detail, the depth of forming the hollow protrusions 63 is determined by making the mold 2 needle-rolled down on the cotton web layer, so that the depth of the hollow protrusions 63 can be completely broken. The hole 630 (as shown in FIG. 5), or the depth of the hollow protrusions 63 may only reach 4/5, 2/3, or other proportions of the full breakdown degree, so that the hollow protrusions 63 The base surface 631 maintains a complete surface without holes (as shown in FIG. 6). Since the thin layer with diversion material 6 itself has finer micropores and still has a drainage effect, by making the base surface 631 of the hollow protrusions 63 not have the holes 630, it can be used It is used to adjust the throughput of water or moisture for users to choose according to the environment and purpose of use.

In summary, the present invention is used to manufacture a mold with a diversion sheet and its finished product. The mold 2 with a two-layer structure is formed by arranging the mesh layer 22 on the base layer 21. The meshes 220 are respectively sheathed with the protrusions 213, so that when the semi-melted fibers 40 are subsequently covered on the mold 2, they are directly molded or broken to form the diversion thin layer 6, which does not affect the original production speed. No secondary processing is required to increase the cost. The thin-layered material 6 with diversion has a flat portion 62 and a plurality of hollow protrusions 63 located on the flat portions 62. The mold 2 can also be changed The height and diameter of the hollow convex pillars 63 are changed in the same way as the convex parts 213; the flat parts 62 can directly contact the user’s skin to increase the contact area, which is conducive to heat exchange and also Because the hollow protrusions 63 are located on the flat portions 62, they can directly discharge the hot air or water in a unidirectional flow, so that the hot air is not easy to accumulate and can effectively improve the drainage effect, so it can indeed achieve the invention the goal of.

However, the foregoing are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification still belong to Within the scope of the patent of the present invention.

2‧‧‧Mould

21‧‧‧Basic level

211‧‧‧The first side

212‧‧‧Second Side

213‧‧‧Protrusion

22‧‧‧Mesh layer

220‧‧‧Mesh

221‧‧‧surface

222‧‧‧surface

Claims (9)

A mold for manufacturing a thin layer with a flow guide is suitable for being installed on a conveying device of a system for manufacturing the thin layer with a flow guide, and a plurality of fibers can be arranged on the mold to form the flow guide A thin layer object, the mold comprising: a base layer, including a first surface that is a flat surface, a second surface opposite to the first surface, and a direction away from the second surface of the first surface of a plurality of self-flattening surfaces Raised protrusions; and a mesh layer, including two opposite surfaces, and a plurality of meshes penetrating these surfaces, and the mesh layer is removably disposed on the base layer, and allows each of the Each of the protrusions is correspondingly sleeved in the mesh. The mold for manufacturing a thin-layered object with a flow guide according to claim 1, wherein the protrusions are cones whose cross-sections gradually extend from the first surface away from the second surface. The mold for manufacturing a thin layer with a flow guide according to claim 2, wherein the heights of the protrusions are different from each other or the same as each other, and the maximum diameters of the cones of the protrusions are the same or each other different. According to claim 2, the mold for manufacturing a thin layer with a flow guide, wherein the protrusions are not in contact with the mesh layer. According to claim 1, the mold for manufacturing a thin layer with a flow guide, wherein the first surface of the base layer has a plurality of micro bumps surrounding each of the protrusions. A thin layer with a flow guide, comprising: a body, including two opposite upper and lower surfaces, and a plurality of flat parts spaced apart; a plurality of hollow convex columns are respectively formed on the flat part, and the cross section is formed by the upper The surface is tapered toward the lower surface; and a plurality of grooves are recessed from the upper surface to the lower surface and respectively surround the hollow convex columns. The thin layer with diversion according to claim 6, wherein each of the hollow protrusions has a base surface and a hole passing through the base surface. The thin layer with diversion according to claim 6, wherein each of the hollow protrusions has a base surface, and the base surface is a complete surface. The thin layer with diversion as described in claim 6 is composed of a single material or a composite material.

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