JPH0458Y2 - - Google Patents

Description

[Detailed explanation of the idea]

The present invention relates to a slanted slub yarn with an elegant appearance and a silk-like texture, and more specifically, it is composed of two thermoplastic synthetic fiber yarns with boiling water shrinkage rates different by 5% or more, and a highly shrinkable yarn A is used. Low-shrinkage yarn B as a core yarn forms slab portions 1 of large fineness intermittently in the longitudinal direction, and low-shrinkage yarn B forms an outer layer of a constant portion 2 of small fineness other than the slab portion 1. The present invention also relates to a uniformly entangled slanted slub yarn. The feature of this invention is that the high-shrinkage thread A is used as the core thread and the low-shrinkage thread B forms the slab part 1, so that the thread A becomes larger than the thread B due to the refining process after knitting and weaving. As a result, the slab portion 1 formed of the yarns B becomes bulkier and clearer, and the design effect of the slab portion 1 is improved. In addition, generally speaking, the bulkier the slab portion is, the lower the yarn unwinding ability is.
Although this tends to be an obstacle during weaving and weaving, the slab portion 1 of the present invention becomes bulky due to the scouring process after weaving and weaving, as mentioned above, so the bulkiness at the yarn stage is suppressed and unwinding performance is improved. It can be made bulky by processing after knitting and weaving. In the present invention, it is necessary that the boiling water shrinkage rate of yarns A and B is 5% or more larger for yarn A than yarn B, and if this difference is less than 5%, the above effect and the slab portion 1 described later will be This is not preferable because it lacks the novel appearance, tactile effect, bulkiness of the stationary portion 2, and unique tactile effect. In particular, yarn A that becomes the core yarn
If the boiling water shrinkage rate of the yarn B forming the slab portion is large, the volume of the slab portion will be reduced due to the scouring process after knitting and weaving, and the design effect will be poor. If the bulkiness of the slab portion is increased, the unwinding property of the yarn will decrease, which is even more undesirable. Another feature of the present invention is that while conventional slabs had an extremely monotonous, approximately spindle-shaped shape, due to the expansion caused by the difference in shrinkage of boiling water, it has a shape similar to that of natural Shandong Zurobushi silk, which has a highly variable shape due to the expansion caused by the difference in shrinkage of boiling water. It is possible to obtain a slub yarn that exhibits the following characteristics. Furthermore, another feature of the present invention is that the steady portion 2 other than the slab portion 1 is uniformly intertwined, so it exhibits the bulkiness and unique texture seen in known woven and knitted fabrics using different shrinkage yarns. Appearance of new slab section 1,
Coupled with the feel, it provides an extremely elegant silk chintang-like texture and visual appearance. Further, since the steady portion 2 is uniformly intertwined, the convergence of the yarn is improved, and movement of the slab portion 1 and disturbance of the yarn in the steady portion 2 can be prevented during weaving and weaving. In addition, in the steady part other than the slab part, the low shrinkage yarn B forms an outer layer and is uniformly intertwined, so the texture of the low shrinkage yarn B can be imparted to the slab yarn. Furthermore, for example, a yarn with a large single yarn fineness as the highly shrinkable yarn A serving as the core yarn,
If a yarn with a small single yarn fineness is used as the low-shrinkage yarn B that forms the outer layer of the stationary part, it will be soft to the touch, and it will be possible to impart a firm and stiff texture to the yarns A and B. The texture can be controlled by selecting the type, fineness, etc. In addition, methods for forming the yarn slab portion 1 of the present invention include a method in which yarn B, which has a small boiling water shrinkage rate, is intermittently turned around a yarn A, which has a large boiling water shrinkage rate, and a method in which the yarns are intertwined intermittently. There is. In addition, if the two thermoplastic synthetic fiber yarns A and B differ in boiling water shrinkage rate by 5% or more, a combination of the same type of thermoplastic synthetic fiber yarns such as polyester-polyester, nylon-nylon, or polyester-nylon, etc. Any combination of different types of thermoplastic synthetic fiber threads may be used. Hereinafter, the present invention will be specifically explained with reference to Examples. Example 1 A polyester multifilament yarn 30d/12f with a boiling water shrinkage rate of 14% was used as a core yarn, a polyester multifilament yarn 25d/12f with a boiling water shrinkage rate of 7% was used as a slab forming yarn, and an air agitation treatment nozzle (processing pressure 7Kg/cm ² ), the slab-forming yarn is fed in excess of the core yarn while changing the feeding speed, so that the slab-forming yarn intermittently turns around the core yarn, and the intertwined slab part and the steady part are uniform. A yarn intertwined with the above was obtained. These yarns are used as weft threads, and polyester multifilament yarns 50d/24f are used as warp threads of 84
When a plain woven fabric with a density of 98 threads/inch and 98 threads/inch was subjected to relaxation heat treatment using a conventional method, the slab part exhibited clear bulk and an elegant silk chantin-like texture and visual appearance. Furthermore, when the fabric was subjected to a 16% alkali weight reduction process, it exhibited a very silk chintang-like texture and visual appearance, with a unique texture that was rich in bulk and drapability. Further, the unwinding properties of the obtained yarn were good, and no problems caused by poor unwinding of the yarn occurred during the weaving process. Example 2 Nylon 6 multifilament yarn 30d/15f with a boiling water shrinkage rate of 18% was used as the core yarn, and nylon 6 multifilament yarn 25d/12f with a boiling water shrinkage rate of 12% was used as the slab forming yarn, and the yarn was twisted using a design twisting machine. The yarn was subjected to an interlacing treatment to obtain a yarn having slab portions and uniformly intertwined constant portions alternately. When a woven fabric was prepared using this yarn in the same manner as in Example 1 and subjected to a relaxation treatment, the slab portion exhibited clear bulk and an elegant silky tan tan texture and visual appearance. Further, the unwinding properties of the obtained yarn were good, and no problems caused by poor unwinding of the yarn occurred during the weaving process. Example 3 Polyester multifilament yarn 30d/12f as core yarn, polyester multifilament yarn 75d/
Using 48f as the slab-forming yarn, various combinations of core yarns and slab-forming yarns with different boiling water shrinkage rates were used to produce five slab yarns each having a slab portion and a uniformly intertwined portion. Slab yarn production involves feeding the slab-forming yarn at an overfeed rate of 8% and the core yarn at an overfeed rate of 4% to an air agitation nozzle (air pressure 7Kg/cm ² ), and supplying the nozzle and the 30cm upstream side thereof. By intermittently changing the thread path of the slab-forming yarn between the provided guide and then returning the slab-forming yarn to the original yarn path, the slab-forming yarn is intermittently placed in excess of the core yarn. This was carried out by supplying and forming a slab portion. Note that the longer the yarn path change distance, the larger the slab portion becomes. Each of the obtained slub yarns was used as the weft, and polyester raw yarn 75d/36f was used as the warp, and a water jet loom LW-41 model manufactured by Tsudakoma (rotation speed 500 rpm) was used.
The fabric was woven into a flat structure with a warp density of 88 threads/2.54 cm and a weft density of 83 threads/2.54 cm, and then subjected to Relax heat treatment in boiling water. Table 1 shows the boiling water shrinkage rate of each supplied yarn, yarn path change distance of the slab-forming yarn, yarn unwinding property, and slab formation on the fabric after relaxing heat treatment.

[Table] As is clear from Table 1, Test No. 1, which is an example of the present invention, had good yarn unwinding properties and had a bulky and clear slab portion. On the other hand, in test No. 2, the yarn unwinding property was good, but
Since the difference in boiling water shrinkage rate was as small as 3%, the slab part could only be seen as defect-like spots. Also, test No. 3
had good yarn unwinding properties, but the boiling water shrinkage rate of the slab-forming yarn was greater than that of the core yarn, so that it could not be seen as a slab after the boiling water treatment. Test No.4
After the boiling water treatment, the convex parts were clearly visible, but the number of stops during weaving was as high as 5 times/hr, and the weaving efficiency was low, making it difficult to commercially produce the weaving. In addition, for actual production, the number of stops must be 0.2
It is necessary to keep it below about times/hr. Furthermore, in Test No. 5, the yarn had a clear and large slab portion, but the yarn could not be unwound from the winding body.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing one embodiment of the present invention, where 1 is a slab part and 2 is a stationary part.

Claims (1)

[Scope of utility model registration request] Consisting of two thermoplastic fiber yarns with boiling water shrinkage rates different by 5% or more, the high-shrinkage yarn A is used as a core yarn, and the low-shrinkage yarn B intermittently forms large fineness slab sections in the longitudinal direction. At the same time, the constant portion of small fineness other than the slab portion is a slanted slub yarn in which low shrinkage yarns B form an outer layer and are uniformly intertwined.