JPS58144141A - Parallel type multilayer structural spun 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 The present invention produces a spun yarn in which a plurality of fiber groups having different ** are arranged in parallel to form a multilayer structure.

The purpose of this is when blending short fibers of 211 or more, even with a small blend of wax fibers, the short fibers of 414! ! The objective is to propose a spun yarn that can exhibit the following properties at a blending rate or higher.

Conventionally, blended spun yarn has generally been a random blend of two or more known fibers with different properties. This quality is due to the aim of achieving uniform yarn quality and stable dyeability without creating draft spots on each fiber. Therefore, conventionally, it is difficult to determine how uniformly and randomly a
A lot of research has been done on how to do fi. However, in the case of conventional blended yarns, uniform yarn quality and stable dyeability can be obtained, but if the animal hair blend ratio is higher than that of the present invention, the characteristics of animal hair cannot be fully demonstrated when the product is manufactured. I had.

The purpose of the present invention is to achieve the purpose of blended yarn, that is, when blending two or more types of short fibers with different characteristics, even if the short fibers are blended in a small amount,
In order to achieve the goal of obtaining a spun yarn that fully combines these characteristics, we conducted a fundamental study from the structural aspect. As a result, it was found that, for example, in the case of a fine acrylic yarn and a wool blend yarn, it is necessary to have a wool-rich portion on the outer surface.

As a concept similar to the above, a technique for obtaining spun yarn with a pod core structure using short fibers is described by Koko @ 52-45.
Issued in Publication No. 255! AII has been proposed. However, with this concept, it is well known that it is extremely difficult to obtain a spun yarn with a pod core structure in which the short fiber group containing 10 to 40 weight of animal hair wraps the short am group containing 90 to 60 weight of animal hair. It is as follows.

In addition, regarding the structure of spun yarn, as a known fact about two-layer yarn, Mol,! 54. N18P48~
P561981 [Interrelationship between yarn structure and ring spinning conditions JP-48 states, ``In this study, we reexamined the research of BoIe et al., used a specially designed spinning machine to improve experimental accuracy, and investigated the mechanism of yarn structure generation. As a result of a systematic investigation, we obtained new knowledge about the interrelationship between spinning conditions and yarn structure.

Based on these findings, we attempted to create a special thread with a two-layer structure and will report on it. 1 and 2 m*a* of % species structure are introduced. However, this report is simply an academic document in which the yarn structure was analyzed from the manufacturing conditions using two types of fibers as model samples for the purpose of analyzing the spun yarn structure, so it is completely unrelated to the means to achieve the main objective.

The inventors of the present invention have considered the above-mentioned circumstances, and as a result of careful consideration from the surface of 4111, they have finally arrived at the present invention. The gist is that it is a spun yarn containing animal hair of 10 to 40 weights and 1 lIs, and on the outer surface of the spun yarn, groups of short fibers with an abundance of animal hair of 70 or more are continuously arranged in the yarn direction. 1 on the outer surface
It is a spun yarn comprising 0-6096 or less.

The present invention will be explained below with reference to the drawings. Figure 1 is a cross-sectional view of a model of a conventional spun yarn made by randomly blending two or more different types of short fibers, and Figure 2 is a yarn made by arranging two short and delicate fibers B in parallel and in multiple layers. FIG. 2 is a cross-sectional view of a model of the spun yarn of the present invention.

This spun yarn has a fiber group with an animal hair content of over 70 sacs and fibers.
The short *fiber group B, which is different from the yarn, is arranged in parallel, and 1 of the outer surface of the spun yarn is
Since the fibers are arranged continuously covering 0% to 60%, compared to conventional spun yarn in which animal hair is evenly distributed,
The characteristics of animal hair are brought out even better.

The spun yarn of the present invention has an animal hair content in the range of 10 to 40 parts by weight, but less than 1016 parts by weight.

FiA is difficult to arrange fiber groups of 70 or more fibers over 10 or more of the outer surface of the spun yarn, and even if the parallel section multilayer method of this invention can be used, the characteristics of animal hair It is not possible to demonstrate oneself to a high degree in a comfortable manner. In addition, the animal hair content is 40
- When the above is achieved, the characteristics of animal hair can be fully exhibited by random blending without the parallel part multilayer structure of the present invention. This invention has an effect of 1iit* when the animal hair content is in the range of 20 to SO-, and is suitable.

The definition of the short*hair group with an animal hair presence rate of 70% or more is the fibers other than animal hair that are included in the spinning yarn in the animal short fiber group.
The value obtained by subtracting 1 go from 100 seconds indicates the existence rate of animal hair. Cited documents showing the abundance rate include Basic Textile Engineering 0I) (Japan Textile Machinery Society) P57-P41. Next, the definition of 60- or less of the outer surface is the second tj7
As shown in A, it is the ratio of length 1) to the total circumference of the A staple fiber group to the total circumference of the yarn. The scooping method is to arbitrarily take 10 times-spun Im yarn cross-sectional section in the yarn direction,
After dyeing with S dye, a cross-sectional photograph is taken, and the ratio of the length j) of the short fiber group A to the total circumference of the yarn is calculated using the following formula.

Ratio of the external surface of the A short line # group to the circumference ■sc −
XiGG, the total circumference of the yarn When the outer surface measured in this way is less than 111J&10-, the A short fiber group is wrapped in the B short fiber group, and the shape is similar to that of a pod-core spun yarn, which can be used for this purpose. becomes very difficult to achieve. Next, when the ratio of the outer surface is 60g6 or more, the A short fiber group includes the B short fiber Is group,
In a spun yarn containing 10 to 40% animal hair by weight, the presence of animal hair is more than 70% short fiber group, and the outer surface is wrapped in human short and delicate fibers at a proportion of 60% or more. Above, it is very difficult.

Specific examples of animal hair include wool, wool, cashmere,
These include Albaca and Angola. Blending partners for animal hair include acrylic fibers, polyamide yarn fibers, and polyester yarn fibers of various denier and fiber length. Among these combinations, wool and acrylic fibers yielded favorable results.

The method for producing parallel yuda I @ rug yarn of the present invention involves spinning each of the short fiber groups of 2 g or more to be blended individually or blending them with an animal hair presence ratio of 70 or more, and then forming slivers or rovings. In the roving process, two or more types of slivers or rovings are fed in parallel to the same hoop to form rovings, and then passed through an n-spinning machine to obtain the parallel multilayer structure spun yarn of the present invention.

Examples will be described below.

A sliver of wool, Cority 64, was used as the animal hair, and it was fed parallel to a sliver of acrylic short fibers made in advance with a short wire with a fineness of 5 denier in a coarse lf3 width and heated to form a roving with a parallel 12-layer structure. , this parallel 5
The two-layer structure roving is n1fJt, and the arrogant yarn is processed into double yarn.
Experiment N11 shows the results of evaluating the texture of a knitted fabric knitted using a yarn with a metric count of 274ONIEL.

Experiment 2 shows an example of changing the composition ratio of wool and acrylic short fibers. The results are shown in Table 1.

As a comparative example, a case using a spun yarn obtained by the conventional blending method (random blending) using the same short fibers as in Experiment N11 is shown in Ugly 4, and wool and acrylic yarn II! An example of random blending by changing the composition ratio of iL fibers is shown in Figure 5. The results are shown in Table 1.

[Brief explanation of the drawing]

FIG. 1 is a model IF view of a spun yarn made by randomly blending two or more types of short fibers with different properties, and FIG. Human: Fiber group B with an animal hair presence rate of 70- or more: A short fiber group different from human hair.

Claims (1)

[Claims] (1) A spun yarn containing 10 to 40 weight of animal hair, on the outer surface of the spun yarn, short fiber groups with an abundance of animal hair of 70 weight or more are continuously arranged in the yarn direction, Spun yarn consisting of 10 or more and 60 or less outer surfaces.