JPS63120149A - Composite cloth structure and its production - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention is directed to a composite fabric +14 structure that has excellent abrasion properties and is highly flexible.

[Conventional technology]

As the fields in which artificial leather is used are diversifying, companies are making proposals to meet market needs for products that are more flexible, thinner, more abrasion resistant, and have higher strength. The present inventors have also proposed several techniques. For example, a highly twisted knitted fabric is three-dimensionally entangled with ultrafine fibers and impregnated with a binder, or a web formed from ultrafine fiber bundles is passed through a knitting machine that uses warp and weft yarns, and a binder is applied to a nonwoven fabric. The method of granting such information, etc. The former is well-balanced in terms of flexibility, high strength, wear resistance, etc.;
This required further improvement.

In the latter case, it is effective in terms of flexibility, bending strength, etc., but if it is more difficult, damage to the warp and weft threads may occur, especially during the raising process, and
The fiber density on the napped surface was low, and improvements were needed in terms of abrasion resistance and high-class appearance.

[Problem that the invention seeks to solve]

The present invention provides a composite fabric horizontal structure that solves all the problems of imbalance in flexibility, abrasion resistance, and strength caused by the above-mentioned fabrication.

[Means for solving problems]

The present inventors have finally arrived at the present invention as a result of intensive research to solve the above problems.

That is, the gist of the present invention is as follows.

(1) A three-dimensionally intertwined nonwoven fabric component layer with fiber lengths of 20 mm or more and 150 mm or less, a woven fabric or knitted fabric component layer interposed on one side of the nonwoven fabric component layer, and further the woven fabric or knitted fabric component. The fibers forming the nonwoven fabric component layer penetrate the layer in the thickness direction, and the penetrating fibers form a knitted fabric-like loop layer on the surface of the woven fabric or knitted fabric, and these three layers are intertwined to form an inseparable integral structure. A composite fabric horizontal structure comprising:

(2) The composite fabric horizontal structure according to item (1) of the scope of Patent HIJ, wherein the composite fabric horizontal structure is provided with a polymeric elastic material.

(3) The composite fabric cross structure according to claim (1) or (2), wherein the nonwoven fabric component is an ultrafine fiber of 1.5 denier or less.

(4) One or both sides of the composite fabric horizontal structure is fluffed.
The composite fabric horizontal structure according to any of item 3).

<5) A fiber web with a fiber length of 20 mm or more and 150 mm or less is laminated on a woven or knitted fabric, and then placed in a sewing machine having a stitch yarn guide needle so that the woven or silk fabric is on the needle side. A method for manufacturing a composite fabric horizontal structure, which comprises arranging and sewing and knitting.

(6) Composite fabric i1. A method for manufacturing a composite fabric frame 1 structure according to claim (5), which comprises the step of imparting a polymeric elastic body to a decorative material.

(7) The method for producing a composite fabric horizontal structure according to claims (5) and (6), wherein the fibers forming the fibrous web are ultrafine fibers of 1.5 denier or less.

(8) Claims (5) and (6), which include the step of subjecting one or both sides of the composite fabric horizontal structure to a napping treatment.

(7) The method for producing a composite fabric horizontal structure according to any one of the items.

The present invention will be explained in detail below.

The characteristics of the composite fabric horizontal structure of the present invention come from the unique structure of a single rod in which the dominant component layers of a nonwoven fabric component layer, a woven fabric or silk fabric component layer, and a knitted fabric-like loop layer are three-dimensionally inseparably integrated. It is.

The fiber components forming the nonwoven fabric component layer include natural fibers such as silk, cotton, wool, linen, etc., semi-synthetic fibers such as diacetate fibers and triacetate fibers, recycled fibers such as viscose rayon, cupro, etc., and synthetic fibers. For example, polyethylene terephthalate and copolymers mainly composed of polyethylene terephthalate, polybutylene terephthalate and copolymers mainly composed of this, polyamides such as nylon 6.12.66, acrylic and copolymers mainly composed of this, etc. Polyethylene or ultra-high strength polyethylene, polypropylene, polystyrene and their copolymers, polyurethane, polyvinyl alcohol and ultra-high strength polyvinyl alcohol, aramid fibers, etc. can be used, and there are no particular limitations. do not have. Furthermore, two or more of these fibers may be used in combination. Two choices can be made as appropriate depending on the purpose and use, and the fabric entangled structure of the present invention is not impaired by this. It may be preferable in terms of texture and color development.

The fiber length of the above-mentioned fibers used in the present invention is 20 mm or more and 150 mm.
mm or less, more preferably 40 mm or more 1 ], O
Preferably less than mm. If it is less than 20 nvn, there will be a lot of fluff falling during web formation, it will be difficult to obtain a uniform web, and it will be difficult to obtain sufficient entanglement. Moreover, if it exceeds 150 mm, when the nonwoven fabric component is passed through a Marimo type sewing and knitting machine, which will be described later, the fibers do not move smoothly to form a knitting-like loop with the stitch yarn guide needle, and unevenness occurs. Moreover, it is difficult to form a uniform loop.

The cross-sectional shape of the fibers forming the nonwoven fabric component is not particularly limited, and any shape such as circular, deformed, hollow, core-sheath type, etc. can be used depending on the purpose and use. The most commonly used type is 1., and it is usually 30 denier or less. In order to give the composite fabric horizontal structure of the present invention a suede-like feel, touch, and appearance quality, it is preferable to use ultrafine fibers of 1.5 denier or less.

When making a nonwoven fabric component layer of 1-111 fibers, it is preferable to use known thinnable conjugate fibers in consideration of spinnability, spinnability, processability, processability, etc. The thinning conjugate fiber refers to a conjugate fiber that can be thinned by a solvent, heat treatment, or mechanical treatment. For example, known composite melt spinning techniques such as polymer interlayer array fibers, sea-island blend fibers, chrysanthemum-like split fibers, etc. can be applied.

Examples of polymers forming the thinnable conjugate fiber include polyethylene terephthalate and copolymers mainly composed of polyethylene terephthalate, polybutylene prephthalate and copolymers mainly composed of this, → ~ Iron 6.1.2.66, etc. Examples include polyamides represented by, hot water soluble polyester, hot water soluble polyamide, acrylic and copolymers mainly composed of acrylic, polyethylene, polypropylene, polystyrene and its copolymers, polyurethane, polyvinyl alcohol, etc. It will be done. At least two or more of these polymers may be combined depending on the purpose and use, taking into account ease of cross-sectional formation of the peeled fibers, spinnability, stretchability, etc. Among these, polyesters and polyamides are preferably used as polymers forming extremely MI fiber bundles from the viewpoint of product physical properties, texture, and touch. These thinnable conjugate fibers may be mixed and used in order to obtain effects resulting from the specificity of the polymer, such as color development, texture, and physical performance.

The nonwoven fabric used in the present invention can be made from the above-mentioned fibers using a known web-forming technique such as card cloth wrapper M/C.

The woven fabric or knitted fabric used in the present invention is a woven fabric or knitted fabric as long as it can easily be penetrated by the stitching yarn guide needle of the Marimo type sewing machine described below without any problem. , the editorial organization is not particularly limited. When it is desired to make the composite fabric cross structure of the present invention highly strong, or when there is a concern about damage during processing of woven fabrics or silk fabrics, it is preferable to use highly twisted textured yarn. Furthermore, the fiber components forming these are not particularly limited.

Differences in dyeability and texture between the fiber components constituting the nonwoven fabric component, 1
They may be appropriately selected and combined depending on the intended use.

A method for producing composite fabric T1 of the present invention using the fibers forming the nonwoven fabric component layer described above and woven fabric or silk fabric will be explained in more detail with specific examples.

First, a web was created by passing a polyethylene terephthalate stable through a card grade cloth wrapper M/C, and the web was laminated onto a plain woven fabric using a polyethylene terephthalate sheet. Pass the material through a marimo-type sewing machine. In this case, the base material is set so that the stick yarn guide needle of the sewing and knitting machine passes through the web from the woven fabric side of the base material. Then, by operating the knitting machine while applying a certain stretch, the stitch yarn guide needle penetrates the weave of the woven fabric, grips the web, and pulls it out from the same weave again to form a loop. By repeating this operation, continuous knit-like loops of the same composition are formed on the surface of the woven fabric, forming a non-woven fabric component layer. This results in a composite fabric cross-structure that is inherently intertwined and inseparably integrated with the woven fabric.

The length and interval of the knitted loops can be appropriately selected depending on the degree of stretch applied to the base material, the gauge width, etc.

The composite fabric horizontal structure obtained in this way is superior to the fabric obtained by passing only the conventional web through a Marimo type sewing and knitting machine.
- It is possible to obtain a fabric with extremely high strength, particularly improved tensile strength and tear strength in the horizontal direction, and excellent abrasion resistance. Furthermore, although the tensile strength in the seam direction is improved in the case of a fabric made by stitching a conventional web using a different type of sewing thread, the tensile strength in the horizontal direction is weak, and it cannot be uniformly sewn like the composite fabric of the present invention. It is easy to imagine that since the woven fabric is not entangled with the woven fabric, its abrasion resistance is reduced.

Furthermore, in the case of a fabric having a fj4 pattern in which a conventional web and a fabric are laminated and needle-linked, the fabric is cut by the needle, and the strength of the product is reduced. In addition, the fabric was exposed on one side, the fibers penetrated unevenly and stood up, the texture was rough, and the quality of the appearance was poor. In contrast, the composite fabric horizontal structure of the present invention has a woven fabric interposed in the inner layer, and a nonwoven fabric component layer intertwined on both sides of the woven fabric,
A fiber bundle from which the same nonwoven fabric component layer has been pulled out is woven through the weave of the fabric! Because of the formation of III-like loops, the woven or knitted fabric does not break, and the abrasion resistance is improved while maintaining the strength of the fabric.

The composite fabric horizontal structure of the present invention may be further subjected to needle punching or high pressure liquid jet treatment in order to obtain a higher degree of entanglement.

The composite fabric horizontal structure of the present invention may be provided with a polymeric elastic material depending on its use as a final product. It is preferable for improving adequate packability, abrasion resistance, and strength, as well as providing a suede-like texture and appearance quality.

Polymer elastomers usually include polyurethane elastomer, acrylonitrile-butadiene rubber, butadiene rubber, natural rubber, polyvinyl chloride, polyamide, etc. Among them, the elastic recovery rate of the fabric obtained as a final product, handling Polyurethane is preferably used because of its ease of use.

In the present invention, the step of applying the polymer elastic body is carried out after the composite fabric structure is formed. However, when a non-woven fabric component and a woven or knitted fabric are used in combination with thinnable composite fibers, the fibers may be applied after forming the composite fabric 11'4 or before or after thinning the fibers. You may. Further, before applying the polymeric elastic material, a combination of shrinkage treatment or thickening treatment may be performed.

The structure of the composite fabric horizontal structure of the present invention is such that the nonwoven fabric component layer has raised naps, but it may be actively subjected to a napping treatment in order to make the nap more uniform or to control the length of the nap. It is preferable for giving an elegant appearance and good touch. For example, sandpaper,
Sand cloth, sand net, whetstone, steel brush,
Examples include, but are not limited to, polishing brushes, sand rolls, diagonal cloths, and the like. In the present invention, this napped treatment step is carried out after the formation of the composite fabric, after the dimensioning of the polymeric elastomer, or before or after the thinning treatment of the silkable composite fibers, or even after dyeing.

The composite fabric 1 structure of the present invention may be subjected to a dyeing treatment, a rolling treatment, etc. in order to impart a higher intoxication value.

The composite fabric horizontal structure of the present invention is preferably used in applications requiring flexibility, abrasion resistance, and high strength, particularly in the fields of clothing, industrial assets, etc., in both thick and thin fabrics.

〔Example〕

EXAMPLES The present invention will be explained in detail below using Examples, but the present invention is not restricted or limited by these Examples. Rather, the next application development is not necessary.

Example 1 Fiber denier 1. Od, Gen fringe number 10 t1+/i
A web was prepared by running a Tet 1st stable with a fiber length of 38 x n through a card/cross wrapper M/C.

This web was fabricated using general type polyethylene terephthalate fiber (<50D-42fil) with a weave density (vertical/
30 wood/in both horizontally and sweet flat 1ili! ! ! Laminated on top of I. Next, this pattern was stitched using a Marimo type sewing and knitting machine with a yarn guide needle (stitch length 1.5 mm, gauge 81T 1 m, speed 1.2).
m/min) so that the plain weave is on the needle side,
A composite fabric with a date of 220 g/Tr12 was obtained. This non-woven fabric layer in which Tetron staples of 1.0 denier to 1.0 denier are intertwined three-dimensionally and the same fibers penetrate through the plain fabric, and the plain i'J7
1A It was a composite fabric horizontal structure with a non-separable integral structure in which a knitting loop was formed on the surface, and was rich in flexibility and had good abrasion resistance.

Example 2 The following polymeric interlayer fiber staple was prepared.

Sea component (Δ): Polystyrene Island component (B): & Polyethylene terephthalate component ratio with limiting viscosity of approximately 0.71: (B) / (8) = 55/45 weight 2% Island fiber number = 36 Composite fiber denier: Approximately 3. Od Fiber length: Approximately 51 mm Number of stripes: Approximately 13141/in A web was prepared by passing the above staple through a card/cross wrapper M/'C. This web was laminated onto the same plain fabric as in Example 1. Then, it was passed through a Marimo type sewing and knitting machine under the same conditions as in Example] to obtain a sheet with a basis weight of 210 g/Tr12. This sheet was passed through trichlorethylene to remove the sea component of the nonwoven fabric component, and then dried.

The obtained sheet has a non-woven fabric-like layer in which ultra-fine fibers are intertwined, and the same ultra-fine fibers penetrate 1,000 m'Jfti, forming a knitted fabric-like loop on the surface of the plain fabric.It has an inseparable integral structure and has a soft texture unique to fabrics. This was a composite fabric cross-structured product with good abrasion resistance, good appearance quality, and good hand feel, and the nonwoven fabric layer and the knitted fabric-like loop layer made of ultrafine fibers solved this problem.

Example 3 The sheet prepared in Example 2 before being dehydrated was subjected to a shrinkage treatment during dewatering, and then dried by nipping.

This sheet was impregnated with polyvinyl alcohol having a solution concentration of 5% in an amount of 6 parts based on the weight of the total polyester component, and dried. Next, this material was soaked in trichlorethylene, subjected to sea removal treatment, and dried.

Next, 200 parts of DMF polyurethane having a solution concentration of 8% was applied to the total weight of the polyester component, and wet coagulation was carried out. Soak this material in 85°C hot water,
The nip was repeatedly desized and the solvent was removed and dried. Next, sandpaper buff M/C (sandpaper = 180
C/#) to actively raise the nonwoven fabric layer side,
The loop side of the knitted fabric was lightly rubbed using sandpaper: 240C/#.

The obtained gray fabric was dyed using a blue disperse dye.

The product thus obtained has a blue suede-like appearance with appropriate packability and motility.
It was a composite fabric horizontal structure with a soft texture and excellent abrasion resistance.

Ratio example 1 Fiber denier 1. Tetron staples with fiber lengths of 10 mm and 190 mm and a stripe count of 8111/in were prepared. Create a web using the staples from these two companies in the card/cross wrapper M/C. Fiber length 1.0 mm
The staple was "Cross Lapper M/C Exit", and web breakage occurred, resulting in an uneven web, and processing was subsequently discontinued. On the other hand, the carp with a fiber length of 190 formed a uniform web.

This web was laminated on the plain fabric used in Example 1, and processed through a sewing and knitting machine under the same conditions as in Example 1.

Because the fiber length is long, the pullability is deteriorated by the Sudetchan guide 21 dollar, the knitted fabric-like loop protrusion becomes uneven, horizontal steps appear in the sheet, uneven thickness and weight unevenness occur, and it is difficult to obtain a uniform composite fabric. I couldn't.

〔Effect of the invention〕

The multi-valley fabric ornament of the present invention has a unique structure in which three layers consisting of a non-woven fabric component layer, a woven fabric or knitted fabric component layer, and a knitted fabric-like loop layer are intertwined and are integrated into an inseparable structure. Therefore, the following effects are achieved.

(1) High strength, wear resistance, and soft texture can be achieved. By adding an elastic polymer, it is possible to improve the layer and product physical properties while providing appropriate packability.

(2) Since fiber or silk fabric is interposed, by selecting the strength and elongation of the fabric, it is easy to create fabrics with high strength, elasticity, and even low elongation. can be obtained.

(3) Although the woven fabric or knitted fabric is interposed, both surfaces thereof are substantially uniformly covered by the nonwoven fabric component layer and the knitted fabric-like loop layer, so that the rough feeling can be suppressed. This effect is even more remarkable when ultrafine fibers are used.

(4) When making thin fabrics and raised fabrics with low basis weight, strong and durable 1
It is possible to process 2-metal grains with low 1ζ without stirring, stable IL-beading properties, and prevents dimensional changes.

(5) Laminating the web on a conventional woven or knitted fabric,
Compared to the needle punching method, there is no damage to the fabric, and there is no fear that the fibers of the cut fabric will be exposed on the surface. It is not necessary to limit the invention to woven or knitted fabrics using particularly highly twisted yarns, and it is possible to obtain fabrics that are more flexible and have no stiffness.

Claims (8)

[Claims] (1) A three-dimensionally intertwined nonwoven fabric component layer with fiber lengths of 20 mm or more and 150 mm or less, a woven fabric or knitted fabric component layer interposed on one side of the nonwoven fabric component layer, and further the woven fabric or knitted fabric component layer. The fibers forming the nonwoven fabric component layer penetrate in the thickness direction, and the penetrating fibers form a knitted fabric-like loop layer on the surface of the woven fabric or knitted fabric, and these three layers are intertwined to form an inseparable integral structure. A composite fabric structure characterized by: (2) The composite fabric structure according to claim (1), wherein the composite fabric structure is provided with an elastic polymer. (3) The composite fabric structure according to claim (1) or (2), wherein the nonwoven fabric component is an ultrafine fiber of 1.5 denier or less. (4) The composite fabric structure according to any one of claims (1), (2), and (3), wherein one or both sides of the composite fabric horizontal structure are fluffed. (5) A fiber web with a fiber length of 20 mm or more and 150 mm or less is laminated on a woven or knitted fabric, and then placed in a sewing machine having a stitch yarn guide needle so that the woven or knitted fabric is on the needle side. 1. A method for manufacturing a composite fabric structure, characterized in that the composite fabric structure is sewn and knitted. (6) A method for manufacturing a composite fabric structure according to claim (5), which comprises a step of imparting an elastic polymer to the composite fabric structure. (7) The method for manufacturing a composite fabric structure according to claims (5) and (6), wherein the fibers forming the fibrous web are ultrafine fibers of 1.5 denier or less. (8) Claims (5) and (6), which include a step of raising one or both sides of the composite fabric structure.
(7) A method for manufacturing a composite fabric structure according to any one of the items.