JPS6183333A - Silk interlaced yarn - 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 twisted raw silk yarn.

(Prior Art and its Problems) Traditionally, raw silk has been mainly used for Japanese clothing, but in recent years there has been a trend toward using broiled raw silk for Western clothing, as the number of people wearing Japanese clothing has decreased.

However, due to its physical properties, raw silk stretches easily, so when it is used in the Western clothing field, especially when used as yarn for knitting, it has problems such as the product sagging (stretching) when washed, etc., making it unusable. is the current situation.

As a means of preventing raw silk from elongating, attempts were made to prevent the elongation of raw silk by using raw silk and synthetic fiber yarn, which has less elongation than raw silk.1 The synthetic fiber yarn and the polyester yarn used were used to prevent the twisting of the twisted yarn. The heated setting (applying heat with water vapor) causes the twisted polyester yarn to shrink by about 7 degrees, resulting in a difference in length between the raw silk and the polyester yarn, resulting in a rough surface of the twisted yarn, which can lead to defective products. It turns out that it cannot be avoided.

In addition, conventionally, when yarns of different thicknesses are twisted together, weight tension is applied to adjust the yarns at the stage of twisting, but this method can be used to eliminate the adverse effects of heat shrinkage of polyester yarns ( In other words, at the stage of winding the raw silk and polyester yarn around the cylinder bobbin, we applied different weight tensions (about 7%) to the raw silk and polyester yarn, taking into account the heat shrinkage of the polyester yarn (approximately 7%).
For example, 1591L for polyester thread + 2 for raw silk (+
I tried winding up about 7% more of the ester yarn (adding a weight tension of 9 n), but the twisting after twisting and the heating set caused the steam to blow out, causing the twisted yarn to fall into the cylinder. Since the yarn must be wound in a wound state, the outer layer of the twisted yarn wound around the bobbin undergoes a certain amount of accurate thermal contraction, resulting in a relatively good twisted yarn, but the inner layer does not shrink even though heat passes through it. This makes it a defective product.

(Means for Solving the Problems) As a result of repeated research in order to prevent the occurrence of defective products due to the above-described intertwisting of raw silk and polyester yarn, the present invention has been developed by preheating and setting the bori ester yarn with steam. It was found that evenly twisted intertwisted yarns can be obtained by heat-shrinking the polyester yarns and heat-shrinking them (no re-heat-shrinking after heat-shrinking), twisting the shrunken polyester yarns and raw silk, and heat-setting them.

The present invention will be explained in detail with reference to the illustrated embodiments. A polyester yarn (1) is used as the synthetic fiber yarn. This polyester yarn (1) is wound with Paandevin [211c], and this J? ! I Put the ester thread (1) into the frame (3
) to form a wire (4), and the wire (4) is heated by a steam heating device (51) to form an ester thread (4).
1) Heat shrink. The degree of shrinkage of the polyester yarn was about 7 inches.

This heat-shrinked polyester thread (ya) is wound around a cylinder and a bottle (6), and the amount of raw silk (8) wound around a cylinder (7) is 3 nia. - Use a weight tensioner to wind it around a cylinder kahin (9) and doubling it, then winding the cylinder kahin (9) that has been wrapped around the doubling thread (although the thread is being twisted, it is old).
The heating device 01 is used to set the heating for the twist stop. Since the polyester yarn/yarn is heat-shrinked before the plucking process, it does not shrink and remains non-shrinkable even when heated and set after twisting.

The synthetic fiber yarn may be any material other than chilester yarn as long as it has physical properties such that it does not shrink after being heat-shrinked. Also, if the synthetic fiber & II yarn is more than 35% of the raw silk, the texture of the raw silk will be deteriorated, and if it is less than 5%, the elongation of the raw silk cannot be prevented. The father twist ratio of the yarn is 20 to 30 inches.

(Function/Effect) The non-invention is that raw silk and non-shrinkable synthetic fiber yarn that has been heat-shrinked by heat setting are mixed and twisted like Unegami, so it is possible to obtain a mixed twisted yarn that retains the texture of raw silk and does not stretch, so it is suitable for knitting. It can also be used as a material, and it is possible to provide knitted products that are knitted with this material and have an excellent feeling of wearing without fading when worn. Of course, it can also be used as a material for Western clothing products.

[Brief explanation of drawings]

The reason is the process diagram of the twisted yarn of the present invention. (1) is untreated polyester yarn. (1) Heat-shrinked polyester yarn, (8) is raw silk. Procedural amendment (method) 1. Indication of the case Japanese Patent Application No. 59-206511 2. Title of the invention Raw silk twisted and twisted yarn 3. Case of the person making the amendment Relationship between patent applicant 6. All drawings subject to amendment. 7. Contents of amendment as shown in the attached sheet.

Claims (3)

[Claims] (1) Raw silk intertwisted yarn made by intertwisting raw silk and non-shrinkable synthetic fiber yarn that has been heat-shrinked by heat setting; (2) Raw silk twisted yarn according to claim 1, characterized in that the synthetic fiber yarn is a polyester yarn; (3) The mixed and twisted raw silk yarn according to claim 1, wherein the synthetic fiber yarn is mixed and twisted at a ratio of 5 to 35% to the raw silk.