JPH0444019B2 - - Google Patents

Description

[Detailed description of the invention]

INDUSTRIAL APPLICATION FIELD The present invention relates to the structure of a base fabric for clothing used in a fluffing machine or a raising device for wool spinning, special spinning, etc. Prior Art and Problems to be Explained by the Invention Conventionally, as shown in FIG. 3, the base fabric for clothing used in the woolen field uses a plurality of woven fabrics 10 such as cotton fabric or linen fabric, which are bonded together using a natural rubber adhesive 11. They are laminated to form a base layer, and a sheet of rubber, felt, etc. is used as a surface layer 12 and is bonded together with a rubber or resin adhesive 13 to have a thickness determined according to the intended use. This base fabric is then seeded with needles and wound around a cylinder of a carding machine or a roller of a carding machine to form a cloth for use in opening and aligning the lumpy fibers. In this way, the clothing is wrapped around a rotating cylinder, dot fur, or roller of a raising device such as CPR or PR, which loosens the fibers or pulls out the fluff from the woven fabric, giving it considerable strength and strength. Strong needle holding power is required. For this reason, the base fabric must be particularly uniform in thickness, have excellent tensile strength, and must be tightly wrapped around a rotating body such as a cylinder with as little elongation as possible under tension. Sufficient needle gripping or holding force is required to withstand the load applied to the implanted needle, and elastic force is required to help the needle recover from deformation. Therefore, as mentioned above, conventional base fabrics for clothing are made of expensive natural woven fabrics such as wool felt, cotton fabric, and linen fabric and coated with a large amount of rubber paste in order to satisfy the various properties required. There are problems in that it is very expensive because it requires a lamination and bonding process. Means for Solving the Problems The present invention is characterized in that the base layer is a base fabric for needle cloth used in carding machines such as wool spinning and special spinning, and aromatic polyamide fiber yarns having high strength, high elasticity, and low elongation are used as at least warp yarns. Woven cloth and synthetic fiber matte with apparent density 0.2 to 0.7
Using an integrated laminate with synthetic rubber or resin-containing needle-punched felt of g/cm ³ , a laminate of a plain woven cloth or a net or a blind-like sheet woven with synthetic fiber yarn as at least the warp and a fiber mat is needle-punched. The surface layer is made of reinforced needle-punch felt made of synthetic rubber or resin, which is integrated by punching and laminated with adhesive, which reduces stress and creep due to the wrapping tension when wrapping the card drum. Elongation due to deformation that is thought to be caused by such phenomena does not occur, and there is no need for contact or cutting accidents due to lifting of the base fabric. In addition, it has elasticity that allows the needle to easily recover without bending or breaking even if the needle is subjected to severe stress concentration, and by strengthening and simplifying the base fabric structure, the needle fabric has a relatively low cost and has a long life. It provides a base fabric for use. Next, the structure of the base cloth for clothing according to the present invention will be explained with reference to the drawings. FIG. 1 is a cross section showing one embodiment of the present invention, and the surface layer 1 is made of interlaced fiber mat using chemical fibers, that is, synthetic fibers such as polyester, polypropylene, polyamide, acrylic, acrylic, polyester, polyolefin, etc. Composite fibers such as polyamide, recycled rayon, kyupra, acetate, etc., chemical fibers such as semi-synthetic fibers are used individually or in combination, and aromatic compounds are formed between fiber mats a and b opened by a carding machine. polyamide,
A cloth-like material 2 (plain weave cloth, net or sash-like sheet) woven using synthetic fibers such as polyester, carbon fiber, polypropylene, etc. is inserted and laminated, and needle punch processing is performed from above and below using a needle punch machine to synthesize the material in the middle. A cloth-like material made of fiber yarn is interposed to intertwine the fibers, and if necessary, SBR,
It is made of reinforced needle punched felt with an apparent density of 0.15 to 0.4 g/cm ³ impregnated with synthetic rubber or resin such as NBR, PUR, or acrylic. The base layer 3 is formed by using the above chemical fibers either singly or in combination, and by needle-punching a fiber mat opened by a carding machine to intertwine the fibers and impregnating them with the synthetic rubber or resin. apparent density
A needle punched felt 4 of 0.2 to 0.7 g/cm ³ and a cloth 5 woven with spun yarn or filament yarn made of aromatic polyamide fiber as at least the warp are bonded and laminated together with a rubber or resin adhesive 6. . The base layer 3 and the surface layer 1 are made of a rubber adhesive such as natural rubber, chloroprene rubber, silicone rubber, or a resin adhesive 7 such as acrylic resin or polyester resin.
to form a base fabric for clothing. The surface layer may be constructed using a needle felt made by needle punching a laminate of a fiber mat 8 and a cloth-like material 2 made of synthetic fiber yarn, as shown in FIG. Polyamide, polyester,
polyethylene, ethylene monovinyl acetate, polyurethane,
A coating layer or a film layer made of SBR, NBR, etc. may be provided by means such as painting, fusing, adhesion, etc. Hereinafter, the present invention will be explained in more detail with reference to Examples. Example 1 Aromatic polyamide spun yarn was spun between uniformly spread fiber mats consisting of 50% polyester fibers 12d x 51mm and 50% polyester fibers 6d x 51mm. The laminated body into which the formed coarse plain woven cloth was inserted was needle punched from the top and bottom at a punching density of 350 punches/ ^cm2 , and the plain woven fabric was inserted to create a thickness in which the fibers were intertwined with each other. A 5.0 mm needle punched felt was formed. Next, this needle punched felt is impregnated with a compounded liquid containing SBR latex as its main component, and through drying, heating, and pressing processes, needles with a basis weight of 1260 g/m ² , a thickness of 4.5 mm, and an apparent density of 0.28 g/cm ³ are formed. Punch felt was formed to serve as the surface layer. Next, a fiber mat made of 100% polyester fibers (3D x 76mm) uniformly opened and laminated was needle punched from the top and bottom using a needle punching machine at a punching density of 400 punches/cm ² each to intertwine the fibers. A needle punched felt with a basis weight of 500 g/m ² and a thickness of 3.5 mm was formed. Subsequently, this needle-punch felt was impregnated with a compounded liquid containing SBR latex as its main component, and after drying, heating, and pressing processes, it had a fabric weight of 800 g/m ² , a thickness of 2.0 mm, and an apparent density.
A needle punched felt of 0.4 g/cm ² is formed.
On one side of the above needle punched felt, the warp is made of aromatic polyamide spun yarn (Kevlar 29 manufactured by Dupont) and the weft is made of cotton yarn (warp 20′ ^S double yarn).
64 pieces/25.4mm weft 16′ ^S single yarn 50 pieces/25.4mm, plain weave)
are laminated and glued together with rubber glue to form a base layer, then chloroprene rubber adhesive is applied to the surface of the woven fabric using the aromatic polyamide spun yarn as the warp for the base layer, and the needle punched felt for the surface layer is applied. A base fabric for clothing having a thickness of 7.0 mm was obtained by laminating and bonding. The breaking strength and elongation rate at a constant load of 160 kg of the cloth base fabric obtained by bonding the cloth base fabric of the present invention and six sheets of conventional wool felt and cotton cloth using natural rubber and synthetic rubber adhesives were measured. The results of the comparison are shown in the table.

[Table] As is clear from the table, the elongation rate of the clothing base fabric of the present invention under constant load was reduced to about 1/2 compared to the conventional clothing base fabric, and the breaking strength was also improved by about 50%. In addition, deformation and elongation do not occur due to the winding load applied to the card drum, and accidents such as contacting and cutting due to lifting of the base fabric do not occur. Furthermore, by strengthening the surface layer, the needles have elasticity that allows them to be easily restored without bending or breaking even if the needles are subjected to severe stress concentration, and cost reduction is achieved by simplifying the base fabric structure. Example 2 A coarse plain woven fabric made of spun yarn of aromatic polyamide fibers was placed on one side of a uniformly opened fiber mat made of polyester fibers 6d x 51mm: 50% and polyester fibers 12d x 51mm: 50%. (Warp 20 twin threads
A needle-punched felt with a thickness of 5.0 mm was formed by stacking 10 threads/25.4 mm and 8 double threads/25.4 mm of 20 weft threads and interlacing the fibers through a plain woven fabric. Next, this needle-punch felt is impregnated with a liquid mixture mainly composed of NBR latex, dried,
After heating and pressing process, the area weight is 1260g/m ² and the thickness
A needle punched felt of 4.5 mm and an apparent density of 0.28 g/cm ³ was formed to serve as the surface layer. Next, ethylene monoacetate bifilm was fused to the needle punched felt surface of the base layer, which was made of a laminate of needle punch felt and a cloth made of aromatic polyamide fiber yarn formed in the same manner as in Example 1, as a reinforcing layer when the needles were removed. Then, the coarse plain woven fabric surface of the surface layer and the aromatic polyamide fiber fabric surface of the base layer were laminated and bonded together by applying a chloroprene rubber adhesive to form a base fabric for clothing. Effects of the Invention Since the present invention is configured as described above, no elongation occurs due to deformation that is thought to be caused by phenomena such as stress relaxation or creep due to the winding tension when winding the card drum, and the contact pressure does not change. Therefore, even under severe conditions of use in woolen spinning and special spinning applications, there is no accident of cutting the needle or clothing due to the lifting of the base fabric, and the durability of the clothing is greatly improved. In addition, by reinforcing the surface layer with a high-strength, highly elastic cloth-like material, it has excellent elasticity and recovery power even when stress is concentrated when carding action is applied to the needle, making it possible to break or bend the needle. There is no. In addition, by simplifying and strengthening the base fabric structure compared to conventional base fabrics, it has excellent effects such as significantly reducing the amount of expensive natural fiber fabric and direct agent usage, achieving rationalization. It is an invention.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a base fabric for clothing showing one embodiment of the present invention, Fig. 2 is a sectional view showing another embodiment of the invention, and Fig. 3 is a sectional view of a conventional base fabric for clothing. . 1, 12... Surface layer, 2... Cloth-like material, 3... Base layer, 4... Needle punch felt, 5... Cloth made of aromatic polyamide fiber yarn, 6, 7... Rubber or resin adhesive, 8 ...Fiber mat, S...Reinforcement layer.

Claims (1)

[Scope of Claims] 1. An integrated needle-punch felt comprising a cloth-like material made of synthetic fiber yarn and a fiber mat laminate on a base layer having at least one layer of cloth woven with needle-punch felt and aromatic polyamide fiber yarn as warp yarns. A base fabric for clothing, characterized in that the surface layer is laminated and bonded together with an adhesive. 2. The base fabric for clothing according to claim 1, wherein the synthetic fiber yarn is an aromatic polyamide spun yarn or a filament yarn. 3. The base fabric for clothing according to claim 1, wherein the cloth-like material is a coarse plain woven fabric, a net, or a blind-like sheet.