JPS58186665A - Processing of raised knitted fabric - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for revealing round balls of entangled napped fibers on the surface of a thermoplastic fiber napped woven or knitted fabric.

The appearance of a tangled pattern on the surface of the napped woven fabric made of Jubei Netsucho plastic fibers and natural fibers means that the hair will fall out a little and there is already a tangled area, so it can be used for a long time without pilling. This method has many advantages such as less change in texture and increased heat retention, and is widely used.The method involves sandwiching and compressing the napped woven fabric between two padding boards, while moving one of the padding boards in a plane. Methods have been used, such as a method of drying the fabric or a method of rotating the napped woven or knitted fabric within a tumble dryer or rotating drum with pins or wall-shaped protrusions provided on the inner wall thereof.

71) Because of this, the method of making clothes required special equipment, and the products obtained were not elegant enough to be used widely for clothing.

The inventors of the present invention have conducted intensive studies to solve these conventional problems, and as a result, we have not found any special equipment other than existing processing equipment.
This made it possible to stably produce products with an elegant appearance at low cost without the use of aluminum. .

That is, the present invention is a woven or knitted fabric in which the raised naps mainly composed of thermoplastic fibers are tilted with respect to the length direction of the hanging, and the raised faces are 9111ζ inside. Then, put it into the dyeing machine so that the direction of the nap of the napping part is the same as the liquid flow discharged from the ejector nozzle in the liquid jet dyeing machine, and set the discharge pressure of the ejector nozzle to 1.2
kq/cl~5. Ok! ? / ノ, 80" (1
We have developed a method for revealing a pattern of entangled napped fabrics on the surface of napped woven or knitted fabrics, which is characterized by treating the fabric at a temperature of ~1 so'c+ for 20 to 120 minutes.

To explain the present invention in more detail, first, the napped weave and knitted fabric used in the present invention must contain 50% or more of thermoplastic fibers.9 Examples of thermoplastic fibers include polyester fibers, acetate fibers, polyamide fibers, Examples include polyacrylonitrile fiber and acetate fiber, but tp! fζacetate fibers are preferred. In addition, the napped woven or knitted fabric is used in a state where the napped is inclined with respect to the length direction of the napped woven or knitted fabric, and methods such as napped shirring, pressing, heat treatment, etc. can be used to incline the napped fabric with respect to the length direction of the napped woven or knitted fabric. I can give it to you.

With the raised side of the thus obtained slanted raised woven fabric facing inside, the respective ears are sewn together into a cylindrical shape using a method such as sewing, and the raised direction of the raised part is adjusted as shown in Figure 1. The liquid is discharged from the ejector nozzle of the jet dyeing machine, and the liquid is put into the dyeing machine so as to be in the same direction as the flow of liquid, and the ends are tied so that the napped fabric becomes endless, and the liquid is discharged from the ejector nozzle.

Adjust the pressure to 1.2 kq/crfl, 5.0 kq/cut, preferably 1.5 kVCd to 5.5 kq/-, and heat at a temperature of 80"CN330'0 for 20 minutes to 12 minutes.
Heat treatment is performed for 0 minutes.

Care must be taken here to sew them together in a cylindrical shape so that the raised part is on the inside, and to make sure that the direction of the raised ends is the same with respect to the ejector nozzle's discharge and flow. That is, if the napped surface is set outward 1111, the desired intertwined pattern cannot be obtained, and if the direction of the napped and the direction of the liquid flow discharged from the nozzle are reversed, it is also impossible to reveal the pattern targeted by the present invention. It is.

Furthermore, in the present invention, the discharge pressure of the ejector nozzle is a very costly factor, and by specifying the discharge pressure of the ejector nozzle to a certain condition, it is possible to create an elegant intertwined pattern in an extremely simple process. It is.

That is, the discharge pressure of the ejector nozzle is 1.2 kqlcl.
When using a vortex, the appearance of intertwined patterns is significantly inferior, and the discharge pressure is 5.
If Aq/crl is exceeded, the raised portions become intertwined patterns and become felt, and in either case, the quality of the kiln is extremely low.

In other words, considering that the discharge pressure of the ejector nozzle used in normal liquid jet dyeing is 1.2 kq/cl or less, it is not possible to achieve the desired pattern by simply stitching the napped side on the inside under dyeing conditions. is difficult to obtain.

On the other hand, if the hot water temperature is less than 80°C, the appearance of intertwined patterns will be small, and if it exceeds 150°C, the raised fluff will harden the texture of the knitted fabric and deteriorate its physical properties, which will also result in a product of low quality.

In addition, if the heat treatment time is less than 20 minutes, the processing stability is poor and a uniform intertwined pattern cannot be obtained, and if the treatment time exceeds 120 minutes, no significant increase in the effect on the appearance of the intertwined pattern is observed, and processing costs are unnecessarily increased. As soon as it is placed on top, the texture also hardens.

To carry out the present invention, as shown in (2) in Fig. 1, the woven or knitted material is formed into a cylindrical shape with the napped side facing inside, and the liquid flow is directed from the injector nozzle (1) in the direction of the napped part of the napped part. By discharging in this manner, a woven or knitted fabric, which is the object of the present invention, can be obtained which has a plane state as shown in FIG. 2 and a 9111 plane state as shown in FIG.

The discharge pressure adopted when implementing the present invention is 1.2k
g/cd~5. It is preferable that the nozzle clearance between the ejector and the nozzle is in the range of 0.0 kg/cl.
It is preferable to set it to 5 m/m to 5 m/m, but this is determined by the size of the jet dyeing machine and the performance of the pump, and is not limited to the sleeve.

The collision angle between the ejected liquid flow and the napped fabric may be within the range of 5° to 3o0, which is widely used in liquid jet dyeing machines.

Also, the cross section of the nozzle does not have to be circular, but may be oval or square.The nozzle diameter also depends on the fabric weight of the napped and knitted fabrics.When the fabric weight is high, it is 100 m/m to 120 mA, and when it is small, it is 60 m/m to 80 m/m. You can use it as appropriate.

As described above, the jet dyeing machine used in the present invention has an ejector nozzle discharge pressure of 1.2 kg/ad to 5.0 kg/ad. Any dyeing machine that satisfies Okqβ may be used, and liquids commonly referred to as "Uniace" (manufactured by Nippon Sensei Kikai Co., Ltd.), "Circu/Lar" (manufactured by Higi Seisakusho Co., Ltd.), etc. A flow dyeing machine etc. can be used.

In carrying out the present invention, it is possible to add a dye PH adjuster, dispersant, etc. during heat treatment to reveal an intertwined pattern, and dyeing can be carried out at the same time, and if necessary, post-treatment such as reduction washing is also possible.

By the above method, a napped woven or knitted fabric, which is the object of the present invention, can be obtained which has an elegant intertwined pattern in which the napped portions are curled and intertwined with each other as shown in FIGS. 2 and 3.

In addition, the present invention not only makes the interlaced pattern appear on the surface of the napped woven or knitted fabric, but also makes the intertwined pattern appear only in the napped part where the napped part and the non-napped part are created, for example, by the raising process or on the weaving and knitting machine stand. By expressing the interlaced and non-entangled parts as a pattern, or by partially changing the length of the raised hairs, it is possible to create a large interwoven pattern in the long parts and a small interwoven pattern in the short parts. .

In addition, by applying the fact that non-thermoplastic fibers are difficult to show entwined patterns, we can combine the entangled patterns from thermoplastic fibers with non-entangled non-thermal O.
It is also possible to make products in which plastic fibers are mixed. By applying the present invention in this way, it is possible to obtain products with extremely varied appearance, and it is possible to obtain products with extremely varied appearance.
The products have many uses, including clothing such as dresses, skirts, and blazers, as well as furniture such as wall materials and chair upholstery, and bedding.

Next, the present invention will be described in more detail with reference to Examples.

Example 1 A tricot knitted fabric was assembled using a 75-denier, 20-filament yarn made of triacetate fiber as the fiber in the raised portion and a 30-denier, 12-filament yarn made of polyester fiber as the fiber in the ground portion. After relaxing this knitted fabric with hot water, it was raised using a needle cloth raising machine. As a result, 75 pieces of tricot napped knitted fabric were obtained whose surface was completely and uniformly napped and the napped part strength was inclined in the length direction of the fabric. The Sarabanko knitted fabric was fed into a Uniace dyeing machine adjusted to a discharge pressure of 2.51C9/Cd under the feeding conditions shown in Table 1 below, and after being processed for 60 minutes at 110° (:). The surface condition was observed.The same and other processing conditions were as follows: nozzle diameter 6 (3
m1m nozzle clearance 1. Q m / m discharged liquid impingement angle was 15°, and bath ratio was 1:50.

Table 1 As shown above, under the conditions other than the conditions of the present invention, the surface condition was not elegant and the quality of the product was extremely low.

Example 2 In the same manner as in Example 1, a tricot napped knitted fabric whose surface was completely and uniformly napped and the napped sloped in the length direction of the fabric was heat-treated under the conditions shown in Table 2 below, and the surface condition was observed. .

The setting conditions other than those shown in Table 2 below are: nozzle diameter 60m/m, nozzle clearance 1. The collision angle of Om/m discharged liquid was 15°, and the bath ratio was 1:30.

2nd Narrow 7 2.5 1110', 1801 The nape is intertwined, but the texture is hardened! -: As described above, products other than the conditions of the present invention did not have an elegant appearance and were of extremely low product quality.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram of the ejector nozzle of the jet dyeing board and shows the feeding state of the napped fabric and knitted fabric, and Fig. 2 shows the napped side of the napped fabric and knitted fabric that reveals a pattern in which the napped fabrics obtained by the present invention are intertwined. FIG. 6 shows the longitudinal section of FIG. 2. 1 shows the ejector, 2 shows the inserted state, and the napped woven fabric 6 has the napped naps intertwined. 4 shows the base fabric. Patent applicant: Patent attorney representing Mitsubishi Rayon Co., Ltd.
1) Taketoshi Mura Figure 1 Figure 21!1

Claims (2)

[Claims] (1) Thermoplastic fiber? In a woven or knitted fabric that has mainly napped portions and the napped portions are inclined with respect to the length direction of the fabric, the napped portions are sewn together in a cylindrical shape so that the napped side faces inside, and the napped direction of the napped portion is the direction of liquid flow. The injector nozzle discharge pressure was set at 1.2 kQ/Ct to 5.0 kQ/Ct.
Ok! ;I/cl/CX V, 8o(:~130
'(a method for revealing a boxed pattern with 9f of napped woven fabrics on the surface of a napped woven or knitted fabric, characterized by heat treatment at a temperature of 20 to 120 minutes, (2) A method for revealing a round shape in which the napped hair is intertwined six times in a napped knitted fabric according to claim 1, characterized in that acetate fibers are used as the thermoplastic fibers.