JPS59112034A - Foundation for card clothing - Google Patents

Abstract

PURPOSE:The titled foundation having hardness of nerve, elasticity, improved holding power of needle, and improved elastic recovery in application of carding action to needle, having a high-density elastic layer as a middle layer and an elastic layer uniformly impregnated with synthetic rubber on the upper part. CONSTITUTION:A foundation for card clothing has the elastic needle mat 6 having 0.25-0.40g/cm<3> apparent density, obtained by processing needle felt with fiber binding emulsion of rubber or synthetic resin, as the highest layer, and the high-density needle mat 7 having 0.40-0.60g/cm<3> apparent density, obtained by heat-treating needle felt mat containing >=30wt% heat-shrinkable fiber to shrink at relatively temperature, as a middle layer. These mats 6 and 7 are laminated successively to the base material layer 11 which is prepared by laminating three sheets of the cotton cloth 8, the flax cloth 9, and the cotton cloth 10 with natural rubber gum, and these layers are bonded with the synthetic rubber adhesive 4 to give the foundation 12 for card clothing.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in base fabrics for clothing used in carding machines, such as woolen or patent.

Conventionally, as shown in Figure 1, the base fabric for clothing is made by using a plurality of woven fabrics such as cotton, linen, or synthetic fibers, which are laminated and bonded using natural rubber adhesive 2, and then formed into a predetermined number and thickness. After that, a sheet-like material 3 of rubber, felt, or resin is laminated on the top layer and bonded with a synthetic rubber adhesive 4, thereby manufacturing. This base fabric is then seeded with seeding wire and wrapped around the cylinder or dowel of a carding machine as clothing to be used for opening and aligning the lumpy fibers. Since the clothing is thus wound around a cylinder or the like that rotates at high speed and has the effect of loosening the fibers, it is required to have considerable strength and a strong ability to hold the planted needles. Therefore, 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 cylindrical body such as a cylinder. Sufficient needle gripping or holding force is required to withstand the loads placed on the needle, as well as resiliency to help the needle recover from deformation. In order to satisfy these characteristics, rubber m, which is made by dissolving natural rubber or synthetic rubber in gasoline and an organic solvent such as benzene, is usually applied several times to a woven fabric such as linen or cotton fabric that has high tensile strength and low elongation. The rubber glue is applied and permeated into the woven fabric to form a rubber glue layer of a constant thickness, which maintains the elasticity of the base fabric and increases the gripping force of the implanted needles. In addition, in the surface layer, a rubber sheet layer, a rubber foam layer, a resin sheet layer, a resin foam layer, and a felt layer are provided in order to completely buffer the stress applied to the implanted needle. In addition, when the felt layer is the top layer, a solution of synthetic resin 5 is further coated on the top surface to form a layer to suppress fuzz on the top surface of the sea felt. Various efforts have been made to eliminate entanglement with the fibers being carded and to prevent internal penetration of oils adhering to the fibers before spinning. However, in order to satisfy the various required physical properties, the conventional base fabrics described above use expensive downy felt1 and go through numerous coating and laminating processes, which makes them quite expensive and also requires the use of felt. The synthetic resin layer coated on the upper layer peels off as it ages, and the felt layer is exposed to the surface and becomes fluffy, making it easy to get entangled with the fibers being carded and making it difficult to remove the fibers that have sunk into the needles of the clothing. Furthermore, it is difficult for oils such as wool oil to penetrate into the surface of the felt layer, and when that oil reaches the adhesive layer, the adhesive dissolves and the layer peels off from the laminated surface of the base fabric. There are various disadvantages such as easy to cause.

The present invention aims to improve the clothing base fabric in which felt is used as the top layer for wool spinning and patented carding machines. is provided at a relatively low cost.

The present invention will be described in detail below based on Examples.

Example polyester 12dX51M: 30%, polyester 6
A uniformly spread and laminated fiber mat with a blending ratio of a /
I used '1Jfc' for needle felting with a thickness of 4&l+. Subsequently, this needle felt was impregnated with a resin impregnating liquid mainly composed of NBR latex, and through drying, crosslinking, and pressing processes, it was made into a fabric weight of 840y/rr? , thickness 2.5 spun, apparent density 0.3361 shoulder, hardness 65 (ASKBRR
TrEBERTESTFtR'"'rypea" used)
A needle maturo t-form was formed to form the top layer.

In addition, as the fiber-bonded emulsion between the frIA fiber phase tiles of the needle felt mentioned above, NBR's MR, M process R
1 Neoprene, acrylic polyester, polyurethane latex or emulsion is used. In addition, if the apparent density is less than 0.25P/(d, the gaps between the fibers will be large and the penetration of the oil will also be large, so it is not preferable.
If it exceeds 14y/cII, it will affect the elasticity,
Even if the needle is subjected to stress, the restoring force is poor and the needle may be damaged.

Next, as the middle layer, polyester 4eL x 76cm; 50
%, polypropylene 3a x 76 gates; The uniformly opened and laminated fiber mat with a blending ratio of 5% was needle punched in the vertical direction using a needle punch machine at a driving density of 600 punches each. After that, shrinkage and press processing were performed using a hot blast oven and hot press rolls set at an internal temperature of 170°C, resulting in a fabric weight of 950 F/...!
.

A high-density needle pine door having a thickness of 2M, an apparent density α of 475 y/dl, and a hardness of 88 was formed. The apparent density of the above needle mat is adjusted in the range of 0.4 to l 6 f/cd, and when the needles are subjected to stress corresponding to the density of the top layer,
The structure is such that each part of the gripping layer can be elastically deformed to correspond to the bending of the needle depending on the degree of bending.

In addition to polypropylene, composite fibers such as polyethylene acrylic, polyolefin, polyester, polyamide, and elastomer yarns are used as the heat-absorbing fibers.

'The needle pine door formed as described above.

6 as shown in Fig. 2, a cotton fabric 8 (warp 60 threads, 82 threads/in, weft thread 16 threads, 52 threads/in, twill weave!l),
Linen cloth 9 (warp 25-scan single yarn flax thread, 77 threads/in1
4 single tables with 16th weft thread / twill weave), 10 cotton cloth (74 twins with 60th warp thread / 67 single tables with 16th weft thread / i)
Three sheets of twill weave (n) are laminated with natural rubber glue 2 and laminated in sequence on the integrally laminated base material layer 11, and synthetic rubber such as silicone rubber, neoprene, nitrile rubber, polyurethane rubber, nitrile, phenolic, butyl rubber, etc. Each layer was bonded with adhesive 4 to obtain a clothing base fabric 12 with a total thickness of 7.2 mm.

In addition, the above-mentioned base fabric for clothing has a top layer, a middle layer, and the desired thickness.
The breaking strength of the base fabric for clothing thus obtained is 620Q+152m, 16
With an elongation of 6.2% at a constant load of 0 kg, it is no inferior to the conventional base fabric for clothing, which is made by gluing 7 layers of wool and 7 pieces of cotton cloth with natural rubber and synthetic rubber adhesives. there were.

In addition to polyester and polypropylene, the fibers used in the needle mats of the top layer and middle layer include synthetic fibers such as polyamide, acrylic, polyurethane, acrylic, polyamide, polyester, polyolein, etc.
Condygate fibers such as elastomer fibers, inorganic fibers such as glass fibers, metal fibers, rock fibers, recycled rayon, chiepura acetate, etc., chemical fibers such as semi-synthetic fibers, or natural fibers such as wool, coconut, pineapple, etc. It is also possible to use each individually or in combination.

Since the present invention has the above configuration, the base fabric for clothing has a high-density elastic layer in the middle layer and an elastic layer uniformly impregnated with synthetic rubber in the upper layer, so it has firm hardness and elasticity. The gripping force of the needle is also good, and the elastic recovery when the carding axis is applied to the needle is excellent, especially on the top layer.
A needle mat made of chemical fibers with excellent oil resistance and durability is impregnated and coated with an elastic and chemical resistant fiber binder and then heated and hardened, resulting in excellent oil resistance and good abrasion fastness. Therefore, it has excellent effects such as less surface fuzzing even after long-term use and greatly improving the durability of the clothing.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a base fabric for clothing showing a longitudinal example, and FIG. 2 is a sectional view of a base fabric for clothing showing an embodiment of the invention. 1...Woven fabric 2-...Natural rubber adhesive layer 6...Sheet-like material 4...Synthetic rubber adhesive 5...Synthetic resin layer 6...Needle mud door...High-density needle Mat 8... Cotton fabric 9... Linen fabric 10... Cotton fabric 11... Base material layer 12... Base fabric for clothing patent tB applicant Hiroshi Kanai

Claims (1)

[Claims] A fiber web made of natural fibers or chemical fibers, either singly or mixed together, is needle-punched to intertwine the fibers as appropriate, and a rubber or synthetic resin-based fiber-bonded emulsion is produced. Look at what you can get by processing it! M density 0.25-0.40 f/
A needle felt made of fibers mixed with the natural or chemical fibers and containing at least 3 U% or more of heat-shrinkable fibers having heat-shrinkable properties that shrink at relatively low temperatures, with an elastic needle mat of irises as the top layer. High-density needle pine with an apparent density of 0.40 to 0.60 obtained by heat shrinking at a temperature higher than the temperature at which the heat-shrinkable fibers start shrinking) T-intermediate layer made of cotton cloth, linen cloth, or A base material layer formed by laminating and contacting synthetic fibers, woven fabrics, etc., each singly or in combination, is used as the lower layer,
A base fabric for clothing, characterized in that each layer is formed by sequentially adhering and integrating each layer with a natural or synthetic rubber elastic adhesive.