JPH0314930B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a novel tape yarn that is excellent in feel, gloss, appearance, and aesthetics.

[Prior art] Conventionally, tape yarns include polyester,
There are some made of acrylnitrile fibers, and many woven and knitted summer clothes have been put on the market in recent years.

However, these tape yarns are simply ordinary woven and knitted fabrics made into narrower fabrics, and although they are said to be very expensive, they have an unremarkable appearance and are paper-like and hard. When used as clothing, the reality is that it is uncomfortable to wear and the characteristics of tape-like products are not fully utilized.

[Problems to be Solved by the Present Invention] In view of the above-mentioned points, the object of the present invention is to provide a material that is extremely flexible, has excellent drapability, and is comfortable to wear even when knitted into clothing such as a sweater. It is an object of the present invention to provide a novel tape yarn that has a good appearance and is also excellent in appearance and aesthetics.

[Means for solving the problems] The present invention has the following configuration. That is, the tape yarn of the present invention is a tape yarn narrow fabric made of synthetic fibers, and the number of single fibers of the narrow fabric is 10,000 or more in the vertical direction and 3,000 or more in the horizontal direction, and This tape yarn is characterized by having different shapes and/or glossiness on the front and back sides.

Further, in the tape yarn of the present invention,
Preferably, the single fiber fineness of the synthetic fibers constituting the tape yarn is 0.8 denier or less.

"action" The present invention will be explained in more detail below.

The tape yarn of the present invention is composed of synthetic fibers, such as polyester, polyamide, polyacrylonitrile, etc., such as polyethylene terephthalate or its copolymer (for example, a copolymer component such as 5-sodium sulfoisophthalate). ), polybutylene terephthalate or copolymers thereof, nylon 6, nylon 66, polyacrylonitrile polymers, etc. are preferably used. Furthermore, these fibers may be mixed, knitted, woven, entangled, etc. as appropriate. Note that mixed fibers include methods in which several types of yarn obtained by spinning and drawing are mixed through post-processing, and those in a composite state obtained by composite spinning technology of several types of polymers. . These include anti-static, improved dyeability,
It may also contain modifiers and additives for the purpose of matting, antifouling, flame retardancy, shrink prevention, etc.

Furthermore, the tape yarn of the present invention must have a single fiber composition of 10,000 fibers/cm or more in the vertical direction and 3,000 fibers/cm or more in the horizontal direction. It becomes difficult to impart shape, gloss, and hue difference to the front and back surfaces. A particularly preferable number of single fibers is 13,000 vertical fibers/cm.
In total, the width is 3400 lines/cm or more.

Here, the methods and means for imparting shape, gloss, and hue difference to the front and back surfaces include, for example: (1) A constant press pressure is applied between a rubber roller and a heated steel roll, and a heat press is applied between the rubber roller and a heated steel roll. This method creates a mirror-like surface on the contact surface of the steel heating roll, giving it a single-sided gloss.

(2) Concave-convex processing, that is, a method of imparting a concavo-convex pattern to one side by using a means used for embossing, such as a gravure roller having a concave-convex pattern or a concave-convex roller with interlocking concave-convex patterns.

(3) Furthermore, a method in which one side is coated with a glue solution containing a dye solution that can be dyed, and then dyed by heat treatment to give a difference in hue to the front and back sides.

etc. are possible.

The number of single yarns in the tape yarns that have recently appeared on the market is 3000 to 7000 yarns/cm in the vertical direction and 300 to 1800 yarns in the horizontal direction.
cm, and the single fiber fineness is 1 to 3.
Denier is the main ingredient. This difference greatly affects the surface quality, texture, form of the front and back surfaces, gloss, and hue difference imparting effect.

Number of single fibers: 10,000 fibers/cm or more vertically, horizontally
To obtain tape yarns with a density of 3000 yarns/cm or more, there are two methods: utilizing the close packing effect by using polygonal cross-section fibers, using high-shrink yarn as the supply yarn, and increasing the density through processing shrinkage through heat treatment. There are methods using ultrafine fibers or ultrafine fiber-generated fibers, and a combination of these is also possible, but preferably a method using ultrafine fibers or ultrafine fiber-generated fibers improves weavability and flexibility to the tape, as well as post-processing. It is possible to more effectively provide a difference in form between the front and back sides.

The method for producing ultrafine fibers includes, for example, a method for obtaining ultrafine fibers from ultrafine fiber-generating fibers, and more specifically, a method by removing at least one component from multicomponent fibers such as sea-island composite fibers or mixed spun fibers. Any method may be used, such as a method of obtaining ultrafine fibers by exfoliating the exfoliated conjugate fiber by a chemical or physical method to obtain ultrafine fibers, or a method of obtaining ultrafine fibers by direct spinning.

Ultrafine fibers with a single fiber fineness of 0.8 denier or less, more preferably 0.4 denier or less are preferred.
There is no particular limitation on the yarn form, and any of filament yarn, spun yarn, blends thereof, mixed fiber yarns, etc. may be used, but filament yarn is more preferable.

The raw yarn is woven into a tape shape. For the weaving method, a conventional ribbon loom may be used, and the weaving structure must be a single weave, and any weaving structure such as plain weave, twill weave, or satin weave may be used, but weavability etc. should be taken into consideration. In such cases, plain weave is common.

As for the processing method after forming into a tape shape, it is generally preferable to form it into a comb shape from the viewpoint of ease of handling. The skein-like tape fabric is desized and refined,
Dry heat setting, shrinkage treatment, dyeing, and/or the above-mentioned front and back surface shape difference treatment are performed. In addition, a slight alkali reduction treatment is performed if necessary. Furthermore, when ultra-fine fiber generation type fibers are used for the constituent threads, the fibers are subjected to ultra-fine treatment.

The order, method, etc. of these processing steps can be freely selected as appropriate. When ultrafine fiber generation type fibers are used, it is preferable to carry out the ultrafine treatment before dyeing and front and back surface shape difference treatment in terms of workability and effective subsequent treatment. Additionally, commonly known finishing agents can be optionally applied. For example, all finishing agents such as antistatic agents, smoothing agents, and softening agents are suitably and preferably used.

The tape yarn obtained by the present invention is characterized by being extremely flexible and has excellent drapability, and can generally achieve a flexibility of 30 mm or less in terms of bending resistance.

[Examples] The present invention will be explained in more detail below using Examples, but the present invention is not limited thereto. The bending resistance shown in the text and examples is a value measured according to JIS-L1096, 6.19.1A method.

Example 1 As warp and weft yarns of tape yarn, filament yarns of 36 denier and 16 filaments made of the following sea-island composite fibers were obtained.

Island component: Polyethylene terephthalate Sea component: Polystyrene Fineness of sea-island type fiber: 2.25 denier Number of island components: 9 Island component ratio: 90% Sea component ratio: 10% Single fiber fineness of island component: 0.23 denier The yarn is woven vertically and horizontally. A tape yarn with a width of 4 mm was obtained using a ribbon loom. The weaving density of the obtained tape yarn was 88 yarns/cm in the vertical direction and 28 yarns/cm in the horizontal direction. After making this into a skein shape, sandet G
-29 (manufactured by Sanyo Chemical) 1g/, soda ash 0.5g/
Scouring was performed in a solution of 80°C for 20 minutes and then dried.
Then, immerse it in a trichlorethylene solution at room temperature,
Washing was performed five times while exchanging the liquid. Plus NaOH 30
Alkali treatment was carried out at 100° C. for 15 minutes in an alkaline solution of 1.5 g/g/g. The weight loss rate at this time was 17%. Next, using a high-pressure jet skein dyeing machine, it was dyed a dark red with a disperse dye and dried. Subsequently, a nip pressure of 70 kg/cm ² was applied between embossing rolls heated to 150°C.
Heat pressing was performed at a processing speed of 2 m/min.

One side of the product thus obtained has a very strong luster and sparkles, while the other side has fine grain-like unevenness and is dull and dull, and the uneven surface is not visible at first glance. It exhibited an unusual condition that did not seem to be a textile.

Furthermore, when we disassembled this material and investigated the number of single fibers, we found that it was very dense, with 12,600 fibers/cm in the vertical direction and 4,032 fibers/cm in the horizontal direction, but the bending resistance was 28 mm, making it soft and drapeable. It was also excellent.

Comparative Example 1 As a comparative example, a tape yarn was woven using a normal polyester filament yarn of 30 denier and 12 filaments for the warp and weft yarns at the maximum possible weaving density. Continuing,
Scouring, alkali treatment, dyeing, and hot press treatment were performed in the same manner as above.

The material obtained in this way had no aesthetic appearance on the front or back side, that is, lacked gloss, and could be identified as a woven fabric at first glance.It also had a bending resistance of 38 mm and a vertical number of single fibers of 3048 fibers/cm. It was a completely ordinary tape yarn with a width of 384 yarns/cm.

In addition, as a means of lowering the bending resistance, we increased the weight loss rate during alkali treatment, and the bending resistance reached 28 mm. However, the misalignment phenomenon was severe and the tearing strength was weak, making it far from practical. Summer.

[Effects of the Invention] The effects of the present invention can be summarized as follows.

(1) It has a very dense structure and a supple texture.

(2) Exhibits a mild luster.

(3) It has a complex appearance and does not give the impression of being a textile just by looking at it.

(4) It is flexible and has excellent bending properties.
It is easy to create secondary products using this tape.

The product of the present invention exhibits many effects as described above,
It is also preferably used as a material for clothing such as summer sweaters, as a decorative material for curtains and screens, as a material for chairs, shoes, hats, etc.

Claims (1)

[Scope of Claims] 1. A tape yarn narrow fabric made of synthetic fibers, wherein the number of single fibers in the narrow fabric is 10,000 vertically.
A tape yarn comprising at least 3,000 yarns/cm and 3,000 yarns/cm or more across, and having different shapes and/or glossiness on the front and back sides. 2 Claim 1 in which the single fiber fineness of the synthetic fibers constituting the tape yarn is 0.8 denier or less
Tape yarn as described in section.