JPS60259634A - Foundation for card clothing - Google Patents

Abstract

PURPOSE:The titled inexpensive foundation, obtained by bonding and integrating a specific surface layer on a base layer consisting of a needle punched felt and a fabric made of aromatic polyamide fiber yarns as warps, and capable of preventing the contact with needles by the floating of the foundation due to no occurrence of elongation. CONSTITUTION:A foundation for card clothing, obtained by bonding and laminating a needle punched felt 4 to a fabric 5 made of aromatic polyamide fiber yarns as at lest warps with e.g. a resin adhesive 6, etc. to form a base layer 3, integrating a fabriclike material 2 consisting of synthetic fiber yarns with fiber mat laminated materials (a) and (b), needle punching the integrated materials to give a needle punched felt, and laminating and bonding the resultant needle punched felt as a surface layer 1 to the base layer 3 with a resin adhesive 7, e.g. an acrylic resin.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to the construction of a base fabric for clothing used in carding machines and napping devices for wool spinning, special trading, etc.

PRIOR ART AND PROBLEMS TO BE SOLVED BY THE INVENTION Conventionally, the base fabric for clothing used in the woolen field uses a plurality of woven fabrics such as cotton fabric and linen fabric as shown in Figure 3, and is coated with natural rubber adhesive (11). Table 11 (12) Use a sheet of rubber, felt, etc. as a base layer between the adhesive types and apply a rubber or resin adhesive (13).
It is glued together and has 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 such as a docker to open and align the lumpy fibers.

In this way, the clothing is wrapped around a rotating cylinder, doffer, or napping device such as OP RJPP R, which loosens the fibers or pulls out the fuzz from the woven fabric, so it has considerable strength. Strong holding power of the planted needles is required. For this reason, the base fabric must be particularly uniform in thickness, have excellent tensile strength, and must be able to stretch as little as possible under tension so that it can be tightly wrapped around a rotating body such as a cylinder, while the machine is in operation. Sufficient needle gripping or holding force is required to withstand the load applied to the implanted needle, and elasticity is required to help the needle recover from deformation.

Therefore, as mentioned above, conventional base fabrics for clothing are made of natural woven fabrics such as expensive wool, cotton, linen, etc., and are coated with a large amount of rubber glue 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 fabric for needle cloth used in particular for woolen spinning, patent carding machines, etc. is made of aromatic polyamide fiber yarn with high strength, high elasticity, and low elongation as at least the warp yarn. A plain weave woven with synthetic fiber yarn as at least the warp using an integrated sandal M body of a woven cloth, a synthetic fiber mat, and a synthetic rubber or resin-containing needle punch felt with an apparent density of o, g to 0.7 g/cj. A laminate of cloth, net, or blind-like sheet and fiber mat is integrated by needle punching, and a reinforced needle punch 7 elastic treated with synthetic rubber or resin is used as the surface layer and laminated together with adhesive. As a result, during winding on a card drum, elongation due to deformation that is thought to be caused by stress relaxation or creep due to tension does not occur, and liquid sealing or cutting accidents due to floating of the base fabric do not occur.

In addition, the needles have elasticity that allows them to be easily restored even when subjected to severe stress concentration without facing or breaking, and by strengthening and simplifying the base fabric structure, the needle fabric has a relatively low cost and a long life. It provides a base fabric for use.

Next, the structure of the base fabric for clothing according to the present invention will be explained according to the distance between the layers. FIG. 1 is a cross section showing Embodiment 2 of the present invention, and the expression (
1) is an interlaced fiber matrix using 1(1) for chemical fibers.

In addition to synthetic fibers such as polyester, polyester, polyamide, and acrylic, acrylic, polyester,
Fiber pine made by using composite fibers such as polyolefins and polyamides, recycled rayon, cupro, acetate, etc., and chemical fibers such as semi-synthetic fibers, either singly or in combination, and opened by a carding machine) a, b Cloth-like material (2) woven using synthetic 0A male threads of aromatic polyamide, polyester, carbon fiber, polypropylene, etc. (plain woven fabric,
Insert one layer of tJ (net) or blind-like sheet), perform needle punching from the top and bottom using a needle punch machine, interpose a cloth-like material made of synthetic dA fibers in the middle, intertwine the fibers, and apply FiER as necessary. .

Synthetic rubbers and resins such as NBR, PtrR, and acrylic are made by using the above-mentioned chemical LA fibers individually or in combination of *a types, and by needle punching the m-fiber mats opened by a card machine and separating them by m distances. An apparent density of 0.2 to 0.7 formed by entangling each other and impregnating the above synthetic rubber or resin.
A 97 csl needle punch felt (4) and a cloth (5) woven with at least warp yarns made of aromatic polyamide fibers such as spun yarn or filament yarn are bonded and layered together with a rubber or resin adhesive (6). . The above base layer (
3) and the surface layer (1) are bonded together with 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. Configure. As shown in Figure 2, the surface layer was made using needle felt made by needle punching a laminate of a fiber mat (8) and a cloth-like material (2) made of synthetic H4 fibers.
ll may also be applied, and the needle punch of the base layer tS>7
z #) As a reinforcing layer (9) on the entertainment surface of (4), a coating layer or film made of polyamide, polyester, polyethylene, ethylene-vinyl acetate, poly9-urethane, SBR, NBR, etc. It is also possible to set the temperature by means such as °C.

The present invention will be explained below with examples! Example 1 to be explained in detail Polyester fiber 12 d x S 1 m: 50
%, polyester fiber 6 d Needle punching was performed at a driving density of 5.0 m thick, and the plain woven fabric was passed through to form a needle punched felt with a thickness of 5.0 m in which the fibers were intertwined with each other.

Next, 8BR for this needle punch felt? It is impregnated with a compounded liquid containing Teax as the main component, and then undergoes drying, heating, and pressing processes to obtain a fabric weight of 12609/rd, thickness t, and 5++.
Needle punch felt with an apparent density of 0.2897 or more was formed as a surface layer.

Next, polyester curvature m 3 dX flow 11+=1.
Open evenly at 0%! ! ! 400 bunches/c each of the clear layered pheasant from the top and bottom using a needle punch machine
-1 driving density r to avoid needle punch processing, and the gift shoes were intertwined with each other, fabric weight 5ao9/a, thickness 3.6
．． ! #I needle punch felt was shaped. Subsequently, this needle punch felt is impregnated with a compounded liquid containing SDR latex as the main component, and is subjected to drying, heating, and pressing steps to obtain a fabric weight of 800 l/ηt1 thickness 2,0 +FA N
Form needle punch felt with an apparent density of 0.49/c+f. On one side of the Togoji needle punch felt, the W yarn and the aromatic polyamide spun yarn (Kevlar 29 DuPont P
:m) Thread made using cotton yarn for the weft, 11 (warp 2 o")
pi, 64 threads/25.4 weft threads 16″8 funeral threads 50 threads/
25, 4 FJ-1 flat fibers) are stacked together with rubber glue.
! After 9 minutes, the base IA was formed, and then the base layer was bonded.
A base fabric for clothing having a thickness of 7.0 mm was obtained.

The above-mentioned base fabric for clothing according to the present invention, conventional wool fabric 7, and cotton fabric 6
As is clear from the table showing the results of measuring and comparing the breaking strength and elongation rate at a constant load of 160 kg of the base fabric for clothing obtained by adhering the base fabrics with natural rubber and synthetic rubber adhesives, it is clear that the present invention The elongation rate of the clothing base fabric under constant load was reduced to about 172 compared to the conventional clothing base fabric, and the breaking strength was also increased by about 50%. In addition, deformation and elongation do not occur due to the wrapping load applied to the card drum, and there is no occurrence of stitching or cutting accidents due to lifting of the base fabric. Furthermore, by strengthening the surface layer, the needle has elasticity that allows it to be easily restored without causing bone fracture even if the needle is subjected to severe stress concentration, and by simplifying the base fabric structure, cost reduction is achieved.

) Example 2! Polyester fiber 6dX51■: 50%, polyester lh fiber 126XS 111s: 50≦ A coarse plain woven fabric (warp 20 10 twin threads 725.4 Kagu, 20 weft threads 8 twin threads 725,4
ms) and subjected to needle punch processing to form a needle punched 7 elt with a thickness of Is and Om in which the fibers were intertwined with each other through a plain woven fabric.

Next, this needle punch 7 elt is impregnated with a liquid mixture mainly composed of WBR latte and sous, and after drying, heating, and pressing processes, it has a basis weight of 12609/Wt, a thickness of 4.5 mm, and an apparent density of 0.28. A needle-punch felt of 2/cd was formed to serve as the surface layer.

Next, an ethylene-vinyl acetate film was fused to the needle punch 7 elt 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 for nail extraction. 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 IIil# agent to form a base fabric for clothing.

Effects of the Invention Since the present invention is configured as described above, when the card drum is wound, elongation due to deformation that is thought to be caused by stress relaxation or creep due to tension does not occur, and contact pressure does not change. Therefore, even under severe conditions of use in woolen spinning or patent applications, accidents such as cutting of staples or clothing due to lifting of the base fabric do not occur, and the durability of the clothing is greatly improved. In addition, by reinforcing the surface layer with a high-strength, high-elastic cloth material, it has excellent elasticity and recovery power even when subjected to stress concentration when the needle is subjected to carding axle, and will not break or become skeletal. do not have. In addition, by simplifying and strengthening the base fabric structure compared to conventional base fabrics, the amount of expensive natural fiber woven fabric and adhesive used can be significantly reduced, resulting in an excellent rationalization effect. It is an invention.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a side fabric base fabric showing one embodiment of the present invention;
FIG. 2 is a T cross-sectional view showing the same embodiment, and FIG. 3 is a cross-sectional view of a conventional base fabric for clothing. (1), (↓2)・Surface layer, (2)−・e cloth-like material, (
3)...base layer, (4)...needle bunch 7el)
, (5) ...cloth made of aromatic polyamide fiber yarn,
(6), ('I)@...Rubber or resin adhesive, (8)1
16・Fine mat (9) @・Reinforcement layer Fig. 1 Fig. 2 Fig. 3 - ■ A-

Claims (1)

[Scope of Claims] (Integration of 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) With dollar punch felt as the surface layer,
A base fabric for clothing, characterized by being 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. (B) The base cloth for clothing according to claim 1, wherein the cloth-like material is a coarse plain woven cloth, a net, or a blind-like sheet.