JPS61641A - Different shrinkage blended fiber yarn fabric - Google Patents

Abstract

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

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to a fabric using different shrinkage mixed yarns.

<Relationship with conventional technology> Conventionally, different shrinkage mixed fiber yarns were sized and then used as warp yarns, so the heat setting during sizing reduced the heat shrinkage difference (Δ5HY), and one yarn length was reduced during finishing processing. The difference was not expressed effectively, and the texture of the drape was poor, such as fullness and warmth.
This is because a temperature of about 100°C is applied under a tension of 15 g/Y, and ΔSHW decreases.To avoid these problems, additional twisting is performed without sizing.
In order to make it possible to weave it, twisting with a twist coefficient of at least 5000 is required, and the resulting fabric was a fabric that was different from what was desired in terms of texture. Further, although the yarn obtained by subjecting the differentially shrinkable mixed fiber yarn to the interlacing treatment can be woven as is, one interlace mark cut still appears, spoiling the appearance, and a high-density woven fabric cannot be obtained. Further, when the raw yarn is sized and weaved, problems like the above-mentioned differential shrinkage mixed yarn occur.

<Objective of the Invention> The present invention aims to obtain a fabric using different shrinkage mixed fiber yarns that has excellent texture such as drape, fullness, and warmth to the touch. The synergistic effect with additional twisting of the specified number of twists makes it possible to weave without glue, which avoids heat history in the preparation process and effectively realizes yarn length differences during heat treatment during finishing, resulting in drape,
The purpose of the present invention is to obtain a fabric using different shrinkage mixed yarns that has excellent texture such as fullness.

<Structure of the Invention> The present invention provides polyester multifilament yarn whose entanglement degree Di is 5≦Di≦100, and the difference between the maximum and minimum shrinkage rates of the single yarn after 3o water treatment is 5 to 40%. ,
Moreover, it is a differential shrinkage mixed yarn fabric woven with yarns that have been additionally twisted with a twist coefficient of 700 to 5000 arranged in at least the warp yarns.

The difference between the maximum and minimum shrinkage percentage of the single yarn after 30 minutes of soaking in water used in the differentially shrinkable mixed yarn fabric of the present invention is 5 to 40%.
Polyester multifilament yarn is a polyester multifilament yarn that has multiple filaments with different heat shrinkage rates due to differences in drawing conditions, differences in heat setting, differences in resin types, etc. in a cross section perpendicular to the yarn axis. Refers to mixed polyester multifilament yarn. In this case, any method may be used to mix the materials, such as a simple drawing method or a spinning blend method in which they are mixed during spinning. In addition, the difference in thermal shrinkage of filaments is 5 to 40% between the maximum and minimum shrinkage rates of a single yarn after 30 minutes of soaking in water.
It is necessary that

If the Sumoto shrinkage rate difference between the single yarns is 5% or less, it is not good because it lacks the fullness, drapability, and wet feel of a differentially shrinkable mixed yarn fabric. Moreover, if it exceeds 40%, it becomes difficult in terms of cost. The Sumoto shrinkage rate is calculated when a sample of length l is immersed in replenishing water for 30 minutes, then air-dried, and the yarn length of the lowest shrinkage component is Its, and the yarn length of the highest shrinkage component is lh.zh=
-! ! ! By xloo! The desired mixing ratio (%) of zero high shrinkage filaments and low shrinkage filaments is preferably 20 to 80:80 to 20, but more preferably 50:50. The total denier of the multifilament yarn is not particularly limited.

The degree of entanglement Di in this case is 5≦Di≦100.
It is necessary that When the degree of entanglement Di is 100 or more, the weavability is improved and glue-free weaving becomes possible just by the entanglement treatment, but this is not good because interlace marks appear and the surface appearance of the fabric deteriorates. In addition, if the degree of entanglement Di is 5 or less, the entanglement effect will almost disappear, the weaving efficiency will decrease, and weaving defects will increase, so it is undesirable. 50 is more preferable. The degree of entanglement Di is measured as follows. A load of 0.29/d is applied to a sample yarn having a length of 1 m, and a hook with a load of single yarn denier X 1.0 is hooked onto the sample yarn, and the hook is allowed to fall due to the weight of the mouth. 7 at the intersection
When the hook stops, 1 move the hook just below the intersecting point and repeat this operation. 0 The total number of repetitions is set as Dl.

The yarn that has been interlaced as described above is further twisted. In this case, the twist coefficient for additional twisting is 7o in terms of weavability and texture.

~5000 is required. Twist coefficient is 5000
If this is the case, the quality of the texture peculiar to the different shrinkage mixed fiber yarn will be reduced, and the cost will also increase, which is not good. Furthermore, if the twist coefficient is less than 700, the weaving efficiency will decrease and the interlace marks will become visible, which is not good. A more preferable twist coefficient is 1400 to 3000. Confounding degree Di
The higher the value, the better the weavability and the fewer additional twists required, but the more likely interlace marks will appear. The degree of entanglement Di has a greater effect on the weavability than the number of additional twists.The above-mentioned differential shrinkage mixed fiber yarn is used for at least the warp yarns during weaving. The weave structure may be the one with the strongest binding force.
When processing the woven fabric, it is necessary to process it at as low a tension as possible so as not to stretch it too much, as with conventional differentially shrinkable mixed yarn woven fabrics.

<Effects of the Invention> Despite the glue-free weaving, a differentially shrinkable blended yarn fabric with good weaving efficiency, fewer weaving defects, and excellent drapability, fluffiness, and warmth to the touch was obtained.

<Example> Example 3 High shrinkage filament of 24 denier filament (
ΔS
A differential shrinkage mixed fiber yarn of 60 denier 48 filament polyester multifilament yarn with HW of 15% was obtained. The acid system was subjected to an air entanglement treatment so that the degree of entanglement Di was 40, and then additional twisting was performed in the S direction at a twist rate of 300 T/M. The acid type was warped with a partial warping machine and used as the warp of the water jet loom, and the weft was a strongly twisted yarn made of 75 denier 72 filament polyester multifilament yarn twisted at 3000 T/M in the S and Z directions. warp density 150/inch weft density 90
It was woven with a plain weave structure of 1 inch per inch and dyed to obtain a plain weave de Chine.

Comparative Example Different contraction mixed fiber yarn of polyester multifilament yarn similar to the example was twisted in the S direction at a twist rate of 300 T/M, sizing was performed, and then the yarn was dried at 100°C and subjected to water jetting. A plain weave dechine was obtained in the same manner as in the example except that it was used as the warp of the loom. Table 1 shows the results of a sensory test regarding the drapeability, fluffiness, and warmth of the touch of the plain weave de Chine obtained in the Examples and Comparative Examples.

Table 1 However, O... 10 out of 10 panelists answered that it was good.

U×...10 out of 10 people answered that the spring was bad.

Table 2 shows the results of examining the weaving efficiency and appearance of finished fabrics for Examples and Comparative Examples.

Table 2 As is clear from Tables 1 and 2, the fabric using the differentially shrinkable blended yarn of the present invention has excellent drapability and fluffiness; The appearance of the finished fabric was also good, which was the same as in the comparative example.

Manual continuation supplementary book July 13, 1980 1981 Patent Application No. 118005 2 Name of the invention Ori Different shrinkage blend fabric 8. Person making the amendment Relationship to the case Patent applicant 2-2-8 Dojimahama, Kita-ku, Osaka Detailed description of the invention in the specification Correct it to °″″″′h x 100.

! (2) On page 6, line 10, "eye" is corrected to "self".

(8) Change l'-3oooJ on page 6, line 3 to [3r+o
Correct it to oJ.

Claims (1)

[Claims] The degree of entanglement Di of the polyester multifilament yarn is 5≦Di≦100, and the difference between the maximum and minimum shrinkage rate of the single yarn after 30 minutes of boiling water treatment is 5 to 40%, and the twist coefficient is 700 to 5000. A non-shrinkable mixed yarn fabric characterized in that it is woven with twisted yarns arranged in at least the warp yarns.