JP2597266B2 - Artificial leather for torso such as shamisen and its manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an artificial leather for a torso as a vibrating membrane for use in musical instruments such as a shamisen and a drum, and a method of manufacturing the same. More specifically, the present invention relates to an artificial leather using a silk woven cloth as a material. And its manufacturing method.

[0002]

2. Description of the Related Art As is well known, a percussion instrument such as a drum produces sound by striking a tanned skin of an animal on a body and hitting the skin. The tone and the degree of amplification of the sound are adjusted depending on the degree of tension of the skin.

[0003] By the way, there is a shamisen among stringed instruments,
Conventionally, tanned skins of animals such as snakes, cats, and dogs are generally used for the shamisen skin. In particular, in the case of the shamisen, there are a thick pole used for Gidayu-bushi, a middle pole used for ground song, Tokiwatsu, Kiyomoto, and a narrow pole used for nagauta, hauta, kouta, etc. Is often done.

[0004]

However, recently, it has been difficult to secure animal skin as a torso of a shamisen or the like, and it is even more difficult to use an animal skin that is optimal for the type of the shamisen or a drum. , In a very difficult situation. It is said that the skin of dogs and cats is good for the shamisen skin, but because the number of dogs and cats from which skin can be collected has decreased and the type of food for dogs and cats has changed from the past. The quality of the skin has deteriorated, making it almost impossible to get good quality skin from cats and dogs as in the past.

Accordingly, the present applicant has proposed that animal skin used as a body skin of a shamisen or the like contains oil and fat and glue, so that animal fiber is used instead of animal skin. If the material is impregnated with oil and fat and gelatinous substances (gelatin, keratin, cystine, etc., hereafter referred to as gelatinous substances) and dried, a leather close to animal skin can be obtained. I found something to gain.

The present invention has been made in view of the above-mentioned points, and has an excellent tone and a durable shamisen which is not inferior to that of a torso made of animal skin using silk woven fabric as a material. It is an object of the present invention to provide an artificial leather for a torso and a method for producing the same.

[0007]

Means for Solving the Problems In order to achieve the above-mentioned object, the artificial leather for torso of the present invention is made of a silk woven fabric woven with silk thread, tussah thread, heaven silk thread and the like. Vegetable or mineral oils and fats and gelatinous substances such as gelatin, keratin and cystine are impregnated to form a tanned skin.

As described in the second aspect, it is preferable that a synthetic resin film such as urethane, polyethylene, nylon or the like is adhered to the surface of the artificial leather for the trunk, and a ventilation treatment is performed.

[0009] The production method of the present invention further comprises the steps of:
Silk woven cloth woven with a silkworm silk, etc., fully dipped in vegetable resin or mineral oil and fat and air dried, gelatin,
The silk woven fabric is immersed in a solution in which a colloidal substance such as keratin or cystine is dissolved in 10% to 30%, and the silk woven fabric is spread and air-dried.

It is desirable that a synthetic resin film such as urethane, polyethylene, or nylon is adhered to the surface of the artificial leather for the trunk, and aeration treatment is performed with steam or the like.

[0011]

According to the artificial leather for a torso of the present invention having the above-mentioned structure, a silk fabric obtained by weaving a yarn made of animal fibers such as a silk thread, a tussah thread, or a silk thread (a mountain cocoon thread) by plain weaving, twill weaving or the like. Since the cloth is used as a material, a shell having a thickness and a shape suitable for the type of musical instrument can be easily obtained. This artificial leather for waist is made by impregnating oil and fat into the material of silk woven fabric, further impregnated with gelatinous substances such as gelatin, keratin, and cystine, and dried to make it look like a tanned leather. Tension and strength close to the torso such as the shamisen made of animal skin can be obtained. In particular, since the woven fabric is impregnated with the fat and oil, the flexibility is increased, the impact is strong, and the durability is improved. In addition, because it has a myriad of vents throughout the entire surface, it can produce a sound that is comparable to or better than the conventional torso made of animal skin, and acts as a vibrating membrane. Fully demonstrate.

Further, in the artificial leather for a torso according to claim 2,
Since a synthetic resin film such as urethane, polyethylene, or nylon is adhered to the surface of the artificial leather for the foreskin, the strength is increased, the durability is increased, and the surface is finished smoothly, and the commercial value is increased. improves. When this is spread on a wooden trunk as a torso, the air holes of a synthetic resin film such as urethane and nylon are expanded, and the air permeability of the leather itself is sufficiently ensured.

According to the method for producing artificial leather of the present invention, the artificial leather according to the present invention (claim 1 or claim 2) can be produced reliably and efficiently, and mass production becomes possible. And the cost can be reduced.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the artificial leather for trunks of the present invention will be described below with reference to the drawings. FIG. 1 is an enlarged sectional view of an artificial leather according to the present invention, and FIG. 2 is a front view showing a manufacturing process of the artificial leather. In this embodiment, the artificial leather for shamisen is used. The same can be applied to artificial leather.

The yarn used for the woven fabric is selected from yarns such as silk, tussah silk, and heavenly silk depending on the type of musical instrument. In the case of a thin rod, a woven fabric of silk is used. In the case of Tsugaru shamisen, a tussah silk is used. Alternatively, a woven fabric made of natural silk is preferable. And, depending on the type of musical instrument, those silk woven fabrics are plain weave, 3 twill, 4
Any of twill, dobby weave, and jacquard weave can be selected, but a plain weave fabric is usually used for the shamisen skin. The upper limit and the lower limit of the thickness of the yarn to be used and the fiber density of the woven fabric are in the ranges shown in Table 1.

[0016]

[Table 1] Warp (count) Weft (count) Density Yarn (upper limit) 10/2 10/2 50 × 40 (lower limit) 200 / 2s 200s / 2 200 × 180 single yarn (upper limit) 10/1 10/1 50 × 40 (lower limit) 300/1 300/1 240 × 200 In FIG. 1, the artificial leather 1 for the trunk is made of a plain woven woven fabric 1 ′ composed of warps 2 and wefts 3. This woven cloth 1 ′ is impregnated with vegetable oil or mineral oil, and gelatin, which is a colloid purified from animal bones and tendons, keratin purified from hard proteins contained in the stratum corneum of the animal,
After sufficiently impregnating the glue 4 such as cystine,
It is hardened like tanned leather. In addition, this artificial leather 1
Is a large number of ventilation holes (not shown) communicating on both sides
Over the entire surface. And each air hole is a warp 2
It is provided so that it may pass through between the weft 3 and a weft 3, and is not necessarily a straight hole.

When the artificial leather 1 constructed as described above is used by being stretched and attached to, for example, a shamisen wooden trunk, the ventilation holes having the same air permeability as the conventional animal skin are delicately formed. Acts to produce sound effects, and artificial leather 1
The tension creates a vibration comparable to animal skin. When synthetic resin film 5 of urethane, polyethylene, nylon, or the like is adhered to both sides of artificial leather 1 as shown in FIG. 1, the gloss of the surface increases, and when this is spread on a shamisen wooden body or the like. In addition, the synthetic resin film 5 is
At the same time, it is pulled in all directions, and the fine ventilation holes are enlarged, and the optimal ventilation is secured together with the woven fabric.

FIG. 2 shows the steps in order to produce a relatively thin torso for a thin shamisen.

FIG. 2A shows a state in which a woven fabric 1 ′ woven by silk yarn is wound around a bobbin 11. Vegetable or mineral oil 17 is stored in the container 10, and the woven fabric 1 'pulled out from the bobbin 11 is sufficiently immersed here. That is, after immersing the woven fabric 1 'in the oil at 40 ° C. to 60 ° C. for 2 to 3 weeks (about 20 days), when the woven fabric 1 ′ is pulled up, the excess oil and fat is squeezed by the dewatering roller 7. After that, the fabric is stretched for drying. At this time, it is preferable to hold the both sides of the woven fabric 1 ′ with the tenter 9 and apply sufficient tension. And let it air dry for more than one week. The woven fabric 1 ″ thus dried is wound up on the bobbin 12.

FIG. 2 (B) shows the next step, in which the bobbin 12 is followed by the container 6 for storing the glue 4 and the winding bobbin 13 is moved a distance for natural drying. Are arranged. When the woven fabric 1 "treated with the oil and fat is immersed in the glue material 4, the woven fabric 1" wound up on the bobbin 12 is drawn out and immersed in the glue material 4 stored in the container 6. I do. The glue 4 can be prepared by dissolving gelatin in water and heating, for example, 10% to 10%.
A gelatin solution of about 30% is used. Then, the woven fabric 1 "is immersed in the solution for about one to two weeks. In the immersion process, steam is injected into the woven fabric 1"
The gelatin solution effectively penetrates into the woven fabric 1 ". The woven fabric 1" thus sufficiently impregnated with the glue substance 4 is air-dried in the same manner as in the oil and fat drying. At this time, the woven fabric 1 "is preferably gripped by the tenter 9 in the same manner as described above. Then, the woven fabric 1" is wound around the winding bobbin 13.

Next, as described above, the fat and oil 1 are added to the woven fabric 1 '.
6 is sufficiently impregnated, and after drying, the woven fabric 1 ″ in a state further impregnated with the glue substance 4 is pulled out of the container 6, stretched and air-dried sufficiently. With the natural drying, the woven fabric 1 ″ is ventilated. The nature also occurs. Artificial leather 1 thus manufactured
Is cut into a predetermined size as a shamisen shell.

FIG. 2 (C) shows a process in a case where a synthetic resin film 5 such as urethane, polyethylene, nylon or the like is adhered to the surface of the artificial leather 1, and the artificial leather 1 pulled out from the bobbin 13 has one side. Is 27cm-30cm
The artificial leather 1 thus cut is attached to a tension frame 8 of approximately the same size in a tensioned state with a needle or the like. Alternatively, the artificial frame 1 is tensioned by making the tension frame 8 a double-sized wooden frame of large and small sizes, covering the artificial leather 1 on the small frame, and pressing the large portion of the artificial leather 1 around the small frame. . Then, a synthetic resin film 5 such as urethane, polyethylene, or nylon is coated on both sides of the artificial leather 1 by 180.
Adhere while heating to about 200C to 200C. By doing so, the gloss can be increased and a good appearance of the torso can be achieved. The operation of attaching the synthetic resin film 5 to the artificial leather 1 may be performed by attaching the synthetic resin film 5 to a known calender roll while keeping it long.

Subsequently, the artificial leather 1 on which the synthetic resin film 5 made of urethane, polyethylene, nylon, or the like is applied as described above is pressed by a steam press 14 at about 120 ° C. A pore is formed in 5. Then, when the artificial leather 1 is spread on the wooden trunk as a shamisen body skin, the pores (not shown) of the synthetic resin film 5 are radially pulled and expanded together with the air holes of the woven fabric 1 ″ to form the shamisen. Optimal ventilation is ensured.

FIG. 3 shows, in order, the steps of manufacturing an artificial leather for the skin of a thick shamisen or a Tsugaru shamisen using a relatively thick skin, which is another embodiment. It is the same as the process. In the case of this artificial leather, a woven fabric 1 'of a silkworm thread is used. First, the woven fabric 1 'is cut into a size required for a shamisen. That is, the woven fabric 1 ′ having one side cut to about 27 cm to 30 cm is attached to the tension frame 8 of approximately the same size in a tensioned state by a needle or the like.
Alternatively, the woven fabric 1 'is attached to the small frame by using the tension frame 8 as a double large and small frame, and the woven fabric 1' is attached to the small frame by holding down the periphery of the woven fabric 1 'stretched over the small frame. . The woven fabric 1 ′ stretched on the stretch frame 8 is stored in the container 10, and is stored at 40 ° C. to 6 ° C.
It is immersed in vegetable or mineral fats and oils kept at 0 ° C. for 2 to 3 weeks, pulled out, placed on a frame 15 and naturally dried (about 1 week). While the woven fabric 1 "treated with oil and fat is stretched on the stretching frame 8, the woven fabric 1" is sufficiently immersed in the glue material 4 stored in the container 6. Thus, the woven fabric 1 "is kept at 60 to 70C for 1 week to 2 hours. When immersed for about a week and the glue substance 4 is sufficiently attached to the woven fabric 1 ", the tension frame 8 is pulled up from the container 6. Then, the tension frame 8 is sequentially erected on the frame stand 15 and naturally. dry.

In the case of this embodiment, the aforementioned embodiment (FIG. 2)
Unlike the case of (1), since the glue substance 4 is attached to the woven fabric 1 "much, the artificial leather 1 having a somewhat thicker eye is formed.
When dried in a stretched state, the woven fabric 1 ″ becomes air-permeable. Natural drying requires one week to 10 days. The artificial leather 1 manufactured in this manner is coated with urethane and polyethylene. , Nylon and other synthetic resin films 5
2 is added to the process shown in FIG. Then, the artificial leather 1 is removed from the tension frame 8 and shipped as a shamisen trunk.

In the above embodiment, the thin and thick shamisen shells have been described. However, without being limited to this method, the thin shamisen shell can be replaced by the method shown in FIG. Can be manufactured by the method of FIG. In the first embodiment shown in FIG. 2, the woven fabric 1 ″ is cut into the size of a wooden trunk in the manner shown in FIG. It is also possible to put the artificial leather 1 obtained by the embodiment of this manufacturing method on a wooden shamisen and dry it.
It is exactly the same as the case of the conventional animal skin torso.

[0027]

As is apparent from the above description, the artificial leather for trunk such as shamisen according to the present invention is a silk woven fabric made of animal fiber such as silk, tussah silk, and heaven silk. Since the cloth is used as a material, the skin of the size and thickness suitable for the type of musical instrument can be easily and sufficiently supplied, and it is hardened by gelatinous substances such as gelatin and keratin. A texture and strength close to the skin can be obtained. In addition, since it contains oils and fats and is highly durable, it does not break when it is used as a skin of a shamisen or the like. Further, since the artificial leather has a ventilation hole on the entire surface which is equivalent to a sweat hole of an animal skin, it has an excellent tone and generates a sound volume comparable to that of the torso.

In the artificial leather for a torso according to the second aspect, since a synthetic resin film such as urethane, polyethylene or nylon is adhered on the surface, the strength is large, the durability is further improved, and the surface is improved. Finished smoothly, good appearance and high commercial value.

Further, according to the production method of the present invention, the artificial leather according to the present invention can be produced reliably and efficiently, can be sufficiently supplied according to demand, and the production cost can be reduced.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view showing a part of an artificial leather for shamisen trunk according to an embodiment of the present invention.

FIGS. 2 (A) to 2 (C) are front views for sequentially explaining the steps of manufacturing the artificial leather according to the present invention.

FIG. 3 is a front view for sequentially explaining manufacturing steps of an artificial leather according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Artificial leather 1 '* 1 "Woven cloth 2 Warp 3 Weft 4 Glue material 5 Synthetic resin film 6 Container 7 Dehydration roller 8 Tension frame 9 Tenter 10 Container 11.12.13 Bobbin 14 Steam press 15 Frame setting 16.17 Oils and fats

Claims (4)

(57) [Claims] 1. A silk woven fabric woven from silk, tussah silk, or celestial silk, as a material, which contains a vegetable or mineral oil and fat and gelatinous substances such as gelatin, keratin, and cystine. An artificial leather for the torso such as shamisen, which is impregnated with tan to make it look like leather. 2. The artificial leather for a torso such as a shamisen according to claim 1, wherein a synthetic resin film such as urethane, polyethylene or nylon is adhered to the surface of the artificial leather for a torso and subjected to a ventilation treatment. 3. A silk woven fabric woven with silk thread, tussah thread, natural silk thread or the like is sufficiently immersed in a vegetable resin or mineral oil and fats and air-dried, and then is coated with gelatin, keratin, cystine or the like. 10%
A method for producing artificial leather for a torso, comprising immersing the silk woven fabric in a solution in which the silk woven fabric has been dissolved by 30%, expanding the silk woven fabric, and air-drying. 4. The artificial artificial skin for shamisen or the like according to claim 3, wherein a synthetic resin film such as urethane, polyethylene, or nylon is adhered to the surface of the artificial leather for artificial skin and subjected to aeration treatment with steam or the like. Leather manufacturing method.