JPH06322658A - Special warp kinitted fabric - Google Patents

Abstract

PURPOSE:To extremely readily obtain a warp knitted fabric having soft touch and waxy feeling at a low cost. CONSTITUTION:The special warp knitted fabric is composed of regenerated cellulosic fiber and/or acrylic synthetic fiber and characterized by scattering islandlike protruding parts formed by entangling fibrillated fiber of the regenerated cellulosic fiber and/or acrylic synthetic fiber on the surface thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a special warp knitted fabric, and more particularly to a warp knitted fabric having a soft touch and a slimy feel.

[0002]

A warp knitted fabric with a soft touch and a slimy feel is obtained, for example, by knitting extra fine fibers of about 0.1 denier with special yarns such as sea-island fibers and split yarns and raising them. However, the production and knitting of the special yarn, and further complicated and sophisticated techniques such as an ultra-fine forming process and a raising process are required, so that the productivity is low and the cost is high.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a soft-touch warp knitted fabric which is extremely easy and inexpensive to obtain.

[0004]

That is, the present invention is a warp knitted fabric composed of regenerated cellulose fibers and / or acrylic synthetic fibers, which is a fibrillated fiber of the regenerated cellulose fibers and / or acrylic synthetic fibers. Is a special warp knitted fabric in which island-shaped convex portions formed by intertwining with each other are scattered on the surface of the warp knitted fabric.

The term "fibrillated fiber" as used herein refers to a regenerated cellulose fiber and / or an acrylic synthetic fiber in which the side surface or the end portion of the single fiber is cracked into a superfine fiber, and at least one end is formed into a single fiber. What is connected. Further, the island-shaped convex portion means one formed by entwining a plurality of fibrillated fibers, and the scattered means that it is evenly distributed on the surface of the warp knitted fabric, and the number thereof is 100 to 10000 pieces / cm ² is preferable, and it is preferable that the area ratio occupies 5 to 60%.

In the present invention, the regenerated cellulose fiber means a multifilament yarn or spun yarn of regenerated cellulose fiber such as cupra, viscose rayon, polynosic rayon, etc., and the single yarn denier is usually preferably 1 to 3 denier, More preferably, the filament is a multifilament yarn, and the total denier is preferably 50 to 120 denier, and particularly preferably 75 to 100 denier, and it is possible to obtain a warp knitted fabric having a soft touch and a slimy feel without a decrease in strength.

In the present invention, the acrylic synthetic fiber means polyacrylonitrile, a copolymer of one or more vinyl or acrylic compounds copolymerizable with acrylonitrile, and a polymer containing at least 40% by weight of acrylonitrile. A fiber made of. Examples of the monomer copolymerizable with acrylonitrile include (meth)
Methyl, ethyl, butyl, octyl, methoxyethyl, phenyl, cyclohexyl esters of acrylic acid, vinyl acetate, vinyl propionate, vinyl butyrate and other vinyl esters, (meth) acrylamide and its derivatives, (meth) acrylic acid , Unsaturated acids such as maleic acid and itaconic acid and salts thereof, unsaturated sulfonic acids such as vinyl sulfonic acid and salts thereof, vinyl halides such as vinyl chloride, vinyl bromide and vinylidene chloride, and vinylidene halides , Vinyl compounds such as styrene, methyl vinyl ketone, and methacrylonitrile.

The molecular weight is preferably a polymer having a weight average molecular weight of 50,000 or more, more preferably a polymer having microscopic scratches in the fiber axis direction on the surface of a single fiber as disclosed in JP-A-3-113012. The groove depth of the streaks is preferably 0.01 to 0.3 μm. The width of the groove in the circumferential direction of the monofilament corresponding to the both banks of the groove is preferably 0.1 to 2 μm.

According to the electron micrograph, the surface of the filaments having the scratches having the groove depth and the groove width has a shape similar to the surface of the cedar tree. The fineness of the acrylic synthetic fiber is preferably 1 to 3 denier per single yarn denier, more preferably multifilament yarn with a total denier of 50 to 120 denier, particularly preferably 75 to 100 denier. It does not deteriorate, and has excellent soft touch and slimy feel.

In the special warp knitted fabric of the present invention, it is preferable that the regenerated cellulose fibers and / or the acrylic synthetic fibers occupy 30% or more of the fibers constituting the surface of the warp knitted fabric, and each fiber may be used alone. , For example, mixed spinning, mixed fiber,
It may be mixed at the yarn stage such as twisting and covering, or may be used after being knitted. Furthermore, these fibers and other fibers such as polyester fibers are mixed and mixed at the yarn stage such as spinning, mixing, twisting, covering, or knitting, for example, regenerated cellulose fiber and / or one of front or back. If acrylic synthetic fibers and polyester fibers are used for the other, island-shaped protrusions are formed only on one side,
This is a so-called reversible warp knit, which is preferable.

If necessary, a yarn containing regenerated cellulose fibers and / or acrylic synthetic fibers may be twisted and used, and the number of twists to be applied is usually 100 T / for a desired purpose, for example, a graining purpose. It is preferably m or more, and more preferably about 500 to 2000 T / m. In accordance with a conventional method, the twisted yarn is temporarily twisted by a wet heat set or the like, knitted, and then subjected to a graining treatment in a dyeing step.

In the present invention, other fiber yarns that are interwoven may be twisted and used, and the twist direction may be alternated between S twist and Z twist. Good.
Examples of the textured warp knitted fabric include a palace crepe, a flat crepe, a de cine crepe, a chili meng, a Yangyanagi crepe, an oriental crepe, a georgette crepe, and a boil.

The structure of the special warp knitted fabric of the present invention is not particularly limited, but in the case of a pattern such as jacquard, it is preferable that an island-shaped convex portion is formed mainly around the pattern portion.
With the density of the special warp knit, preferably 24 GG to 32 G
The preferable range of G is 26 G
G to 30 GG, and outside this range, soft touch and slimy feel may not be sufficient, or strength reduction due to single yarn breakage may occur.

The method for forming the island-shaped protrusions of the special warp-knitted fabric of the present invention is, for example, kneading in a wet state in a normal-pressure washer, a continuous relaxing machine, a jet dyeing machine, an air-flow dyeing machine, or a Wins dyeing machine. There is a method of treating or rubbing the surface of the knitted fabric by a stone wash method, and the conditions of kneading and rubbing may be appropriately adjusted in consideration of the state of fibrillation and the formation of island-shaped convex portions.

In addition, a swelling agent for regenerated cellulose fibers, for example, in a strong alkaline aqueous solution such as NaOH or liquid ammonia, or a liquid containing a swelling agent for acrylic synthetic fibers, for example, rodancari, rodan soda, sulfuric acid, nitric acid, DMF, DMSO and the like. It is preferable that the fibrillated fiber is generated by suppressing the strength reduction of the fiber by kneading with. If wrinkles are processed before the island-shaped protrusions are formed, wrinkles with excellent durability are added, and after forming wrinkles, if necessary, for example, soft finishing by paper calendering or silicone softener treatment. You may.

The special warp knitted fabric of the present invention, when used as an outer garment, has a very high-grade appearance due to the appearance and texture of the surface. When used as an outer garment, an interlining may be used in an appropriate part, if necessary,
The interlining is preferably as thin and soft as possible, preferably so-called knit interlining. When an adhesive interlining material is used, a so-called double-dod type in which dodd-shaped adhesive is laminated in two layers is preferable.

[0017]

EXAMPLES The present invention will be described in more detail below with reference to examples.

[0018]

[Example 1 and Comparative Example 1] 28 using 75d / 38f acrylic multifilament yarn for the front and back
A GG warp knit was knitted, relaxed and scoured according to a conventional method, then subjected to a kneading treatment for 5 hours at the same time as dyeing with a jet dyeing machine, followed by drying and softening. The warp knitted fabric thus obtained had about 2300 island-shaped protrusions / cm ² and occupied about 16% in area ratio.

As Comparative Example 1, a warp knit was obtained in the same manner as in Example 1 except that the kneading treatment was carried out for 1 hour. While Example 1 was a warp knitted fabric with a soft touch and a slimy feel, which was extremely sensitive, Comparative Example 1 was far from a soft touch and a slimy feel, and on the contrary, a thread was formed due to locally fibrillated fibers. Had occurred.

[0020]

Example 2 A 28 GG warp knitted fabric using a 75d / 74f cupra multifilament yarn on the front and a 75d / 36f polyester multifilament yarn on the back was knitted, and kneaded in the same steps and conditions as in Example 1. A cloth treatment was performed. About 1200 island-shaped protrusions / cm ^{2 were} formed on the front side of the obtained warp knitted product, and the area ratio occupied about 12%.

[0021]

EFFECT OF THE INVENTION The special warp knitted fabric of the present invention is a soft touch and has a slimy feel, which can be obtained very easily and at low cost.

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[Procedure amendment]

[Submission date] May 20, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0015

[Correction method] Added

[Correction content]

In addition, a swelling agent for regenerated cellulose fibers, for example, in a strong alkaline aqueous solution such as NaOH or liquid ammonia, or a liquid containing a swelling agent for acrylic synthetic fibers, for example, rodancari, rodan soda, sulfuric acid, nitric acid, DMF, DMSO and the like. It is preferable that the fibrillated fiber is generated by suppressing the strength reduction of the fiber by kneading with. Especially when kneading with an alkaline aqueous solution such as NaOH,
It is preferable to use a mixture of regenerated cellulose fibers and polyamide-based fibers by interlacing or the like, since the warp knitting can suppress the strength reduction and generate fibrillated fibers. Here, the polyamide fiber is composed of polyamide such as nylon 6, nylon 66, nylon 46, etc., and if necessary, a matting agent, a pigment, a light stabilizer, a heat stabilizer, an antioxidant,
An antistatic agent, a dyeing or adhesion improving agent, etc. may be added. Further, the cross section of the single yarn may be a round shape, a Y-shape, an L-shape, a triangular shape or the like. In particular, so-called high-speed spun yarns such as spin take-up yarns and spin draw take-up yarns spun at a winding speed of 4000 m / min or more are preferable because they further improve the soft touch of the warp knit. If wrinkles are processed before the island-shaped protrusions are formed, wrinkles with excellent durability are added, and after forming wrinkles, if necessary, for example, soft finishing by paper calendering or silicone softener treatment. You may. ─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] February 8, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0014

[Correction method] Change

[Correction content]

The method for forming the island-shaped protrusions of the special warp-knitted fabric of the present invention is, for example, kneading in a wet state in a normal-pressure washer, a continuous relaxing machine, a jet dyeing machine, an air-flow dyeing machine, or a Wins dyeing machine. There is a method of treating or rubbing the surface of the knitted fabric by a stone wash method, and the conditions of kneading and rubbing may be appropriately adjusted in consideration of the fibrillation and the formation of island-shaped protrusions. Alternatively, an air tumbler processing machine may be used. In addition, it is preferable to raise the hair with a raising means such as emery paper before forming the island-shaped protrusions, because the soft touch and slimy feeling are further improved and the island-shaped protrusions are formed more uniformly.

Claims (1)

[Claims] 1. A warp knitted fabric composed of regenerated cellulose fibers and / or acrylic synthetic fibers, wherein island-shaped projections are formed by intertwining fibrillated fibers of the regenerated cellulose fibers and / or acrylic synthetic fibers. A special knitted fabric characterized in that parts are scattered on the surface of the warp knitted fabric.