JPS6217502Y2 - - Google Patents

Description

[Detailed explanation of the idea]

[Industrial Field of Application] The present invention relates to a synthetic fiber fabric that is suitably used as bag fabric, canvas fabric, tent fabric, athletic shoe fabric, winter clothing fabric, and the like. [Prior Art] Original zutsuku fabric is a plain-woven thick fabric using thick jute fiber twists for the warp and weft yarns, and is used for tent fabrics, athletic shoe fabrics, bag fabrics, canvas fabrics, etc. However, with the development of synthetic fibers, various synthetic fibers have come to be used in place of the original jute fibers. The conventional synthetic fiber zutsuku fabric made in this way is nothing more than a regular solid synthetic fiber multifilament whose thickness matches that of thick jute fiber twist yarns, and which is used for the warp and weft yarns. Therefore, despite its large basis weight, it has poor tear strength and abrasion resistance, and it also has the disadvantage that dirt is easily noticeable. [Purpose of the invention] The present invention was made in order to eliminate the drawbacks of the conventional synthetic fiber cloth as mentioned above.
To provide a synthetic fiber fabric that has a light basis weight despite being thick and has high heat insulating properties, shape retention properties, etc., has excellent tear strength and abrasion resistance, and does not stain easily. [Structure of the invention] This invention consists of hollow synthetic fibers with a fiber cross-sectional average hollowness ratio of 7 to 30% and a strength of 5 g/de or more and a thickness of 400 to 300.
A woven fabric in which 1100 de multifilament is used as the warp and weft or either the warp or weft yarn, and the warp density and weft density are each in the range of 30 to 50 threads/2.54 cm with a thickness of 400 to 1100 de. The above object is achieved by this structure. Synthetic fibers in the present invention include fibers such as polyamides such as nylon 6 and nylon 66, polyesters such as polyethylene terephthalate and polybutylene terephthalate, polyolefins such as polyethylene and polypropylene, polyvinyl chloride, and polyacrylonitrile. ,
Among them, fibers made of nylon 6 having an intrinsic viscosity of 1.2 or more are preferably used. Such synthetic fibers are hollow fibers with an average cross-sectional hollowness ratio of 7 to 30%, and have a multifilament weight of 5 g/
It is necessary to have a strength of de or higher, especially 7.8
It is preferable to have a strength of g/de or more. If the hollowness ratio is less than 7%, it will be no different from conventional synthetic fiber fabrics, that is, it will have poor tear strength and abrasion resistance despite its large basis weight, and it will be difficult to obtain stain prevention effects. and the hollow rate is 30%
If it exceeds this, it will be difficult to obtain a pad with sufficient strength, and problems will arise as the hollow portion becomes more likely to collapse. Even if the strength is less than 5 g/de, it will be difficult to achieve the object of the present invention in terms of tear strength and abrasion resistance. Examples of the cross-sectional shapes of the hollow synthetic fibers as described above are shown in FIGS. 1 to 3, but the cross-sectional shapes are not limited to these. However, it is preferable to have an irregular outer shape and a plurality of hollow portions H, as shown in FIGS. 2 and 3. With the cross-sectional shapes shown in Figures 2 and 3, dirt is particularly hard to notice, and the hollow ratio, that is, the hollow portion H relative to the total cross-sectional area, is
Even if the cross-sectional area ratio of is close to 30%, the hollow part H is difficult to collapse. The woven fabric of the present invention can be obtained by using multifilaments made of hollow synthetic fibers as described above as the warp and weft of a fabric, or as either warp or weft yarns. This hollow synthetic fiber multifilament has a thickness of 400 to
It is preferable that the yarn is in the range of 1100 de, and if necessary, it may be twisted or combined and twisted.
If the thickness is too thin, it will not be possible to obtain the thickness and strength required for woven fabric, and if it is too thick, the structure of the fabric will become coarse and the abrasion resistance will be poor despite the large basis weight. or As for the texture of the fabric, a plain weave with little floating is preferable, but a twill weave or the like may also be used. The zutsuku fabric of this invention is based on the history of such textiles,
Only one of the weft yarns may be made of the above-mentioned hollow synthetic fiber multifilament, but the warp and
It goes without saying that it is more preferable that both yarns are made of hollow synthetic fiber multifilament. The warp and weft densities of the fabric are each 30 to 50.
It is preferably within the range of book/2.54cm. As a result, the tsutsukuri fabric not only has sufficient strength and abrasion resistance, but also has appropriate drape properties and can be easily processed into bags, sports shoes, etc. FIG. 4 is an enlarged plan view of the woven fabric of the present invention, which is made of a plain weave fabric using hollow synthetic multifilament fibers for both the warp 1 and the weft 2, and as mentioned above, such a structure is preferable. [Example] Hereinafter, the present invention will be further explained by referring to an example. Intrinsic viscosity measured in m-cresol solution is 1.45
A multifilament of 840 de/68 fils with a fiber cross-sectional shape as shown in Fig. 2 is made of nylon 6, and the constituent fibers have different hollowness percentages and strengths, and these are used for both the warp and weft. A plain woven zutsuku fabric was produced. The above multifilament was produced by spinning nylon 6 melted at 275°C at a spinning speed of 800 m/min, changing the stretching ratio in the range of 4.0 to 5.0, and setting the heat set temperature after stretching to 190°C. This is what was obtained. In addition, the warp density of the zutsuku fabric is 36/2.54cm,
The weft density was 33 threads/2.54 cm. The characteristics of each of the obtained striped fabrics were measured and evaluated, and the results were as shown in Table 1. As shown in the results in Table 1, the hollowness ratio is 7 to 30.
% and strength of 5.0 g/de or more, the zutsuku fabric is made of hollow synthetic fiber multifilament and has the characteristics of excellent tear strength and abrasion resistance, light weight, and less noticeable stains. The tear strength shown in Table 1 was measured by the single tongue method, and the abrasion resistance was measured by a universal abrasion tester. The higher the abrasion resistance value, the better the abrasion resistance. The stains were determined visually after washing the zutsuku fabric with dirty water.

【table】

[Effect of idea]

As shown in the results in Table 1, the invented zutsuk fabric is lightweight, tear-resistant, has excellent abrasion resistance, does not show stains, has good insulation properties, and can be used as bag fabric, canvas fabric, tent fabric, and sports shoe fabric. , suitable for use as cold weather clothing fabrics, etc.

[Brief explanation of drawings]

1 to 3 are cross-sectional views of the hollow synthetic fiber used in the present invention, and FIG. 4 is an enlarged plan view showing an example of the woven fabric of the present invention. H...Hollow part, 1...Warp, 2...Weft.

Claims (1)

[Scope of claim for utility model registration] (1) Average hollowness in fiber cross section 7-30%, strength 5g/
Thickness 400~ made of hollow synthetic fiber of de or more
1100 de multifilament is used as warp and weft or either warp or weft yarn, and warp density and weft density are 400 to 400 respectively.
Synthetic fiber fabric characterized by being made of woven fabric ranging from 30 to 50 threads/2.54 cm with a thickness of 1100 de. (2) Utility model registration claim 1, in which the hollow synthetic fiber is nylon 6 fiber with an intrinsic viscosity of 1.2 or more
Synthetic fiber fabric as described in section.