KR20080026365A - Method for preparing the knitted fabric having wrinkles using the latent crimp fiber - Google Patents

Abstract

A method for manufacturing a pleat type knitted fabric is provided to form natural pleats on the knitted fabric through different shrinkage rates of yarns when the knitted fabric is dyed, thereby simplifying the manufacturing process of the pleat type knitted fabric. A fabric is knitted by using a latent crimp yarn and a general yarn at a ratio 1:1-2:1. The latent crimp yarn has a thermal shrinkage rate of 10-30% at 60-130‹C and a restoration rate of 30-70%. The general yarn has a thermal shrinkage rate of no more than 10% at 60-130‹C. Pile yarns are woven in the fabric, and then the woven pile yarns are cut, thereby arranging the pile yarns in the fabric. The treated fabric is dyed at 60-130‹C.

Description

METHODS FOR PREPARING THE KNITTED FABRIC HAVING WRINKLES USING THE LATENT CRIMP FIBER}

1 is a schematic diagram of a double raschel knitting machine used when weaving a pleated knitted fabric according to an embodiment of the present invention.

Figure 2 is a tissue diagram of each supply yarn when weaving a pleated knitted fabric according to an embodiment of the present invention.

3 is a copy of a surface photograph of a pleated knit fabric in accordance with one embodiment of the present invention.

The present invention relates to a method for manufacturing a wrinkle knitted fabric using latent crimping yarn, and more particularly, has excellent surface feel and wrinkle state, and natural wrinkles are formed even without a separate machining process. The present invention relates to a method of manufacturing a pleated knitted fabric which can be simplified.

In general, as a method of forming wrinkles in a fabric woven with yarn such as nylon and polyester, a press working method of pressing the fabric by a mechanical device having recesses and convexities has been mainly used.

However, since the method requires an additional process for pleating after weaving the fabric, the process is not only complicated, but also has a disadvantage in that workability and productivity are reduced.

In order to solve the above problems, it is an object of the present invention to provide a method for producing a wrinkled knitted fabric that wrinkles are formed when dyed by different heat shrinkage and knitted tissue of the yarn.

In order to achieve the above object, the present invention is (i) the potential shrinkage of the heat shrinkage at 60 ~ 130 ℃ 10 ~ 30% and stretch recovery rate 30 ~ 70%, and the heat shrinkage at 60 ~ 130 ℃ 10 Weaving fabrics which are knitted with a ratio of 1: 1 to 2: 1 of general yarn less than%; (Ii) weaving pile yarns between the fabrics of step (iii); (Iii) cutting the pile yarn of step (ii) to produce a fabric in which pile yarns are arranged; And (iii) dyeing the fabric of step (iii) at 60 to 130 ° C.

According to the present invention, the manufacturing method is preferably a double raschel process using a plurality of beams.

The present invention also provides a garment, automotive interior finish or architectural interior finish manufactured from the pleated knitted fabric produced by the above method.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

In the course of repeating the study on the wrinkle knitted fabric, the present inventors used a latent crimped yarn made from two or more kinds of polymers having different thermal shrinkage rates in the fabric structure of the knitted fabric, even if no separate machining was performed. Natural wrinkles are formed by the different thermal shrinkage of the, thereby confirming that it can simplify the manufacturing process of the knitted fabric, to complete the present invention based on this.

In the present invention, " potentially wound yarn " refers to a composite of two kinds of polymers having different shrinkage properties in a side-by-side type, a sea-island type, and the like. As the yarn expressing high crimping property by using the shrinkage property of, in particular, it means a yarn having a heat shrinkage of 10 to 30% at 60 to 130 ° C, and the term "general yarn" is generally used in the technical field to which the present invention belongs. As filament fibers used, it means filament fibers having a heat shrinkage of less than 10% at 60 to 130 ° C.

The manufacturing method of the wrinkle knitted fabric according to the present invention

(Iii) 1: 1 to 2 latent wound yarns having a heat shrinkage of 10 to 30% at 60 to 130 ° C. and a stretch recovery rate of 30 to 70%, and a general yarn having a heat shrinkage of less than 10% at 60 to 130 ° C. Weaving the knitted fabric at a ratio of 1;

(Ii) weaving pile yarns between the fabrics of step (iii);

(Iii) cutting the pile yarn of step (ii) to produce a fabric in which pile yarns are arranged; And

(Iii) dyeing the fabric of step (iii) at 60 ~ 130 ℃.

In step (iii) of the manufacturing method according to the present invention,

The latent crimping yarn may use a conventional composite yarn in the technical field to which the present invention pertains, and preferably exhibits physical properties with a thermal contraction rate of 10 to 30% and an elastic recovery rate of 30 to 70% at 60 to 130 ° C. (Iii) may be used.

For example, the latent crimp is preferably a composite spinning of two polymers selected from the group consisting of nylon, polyester, polyurethane, polyacrylonitrile, polyolefin, and cellulose, the form of which is side-by-side. A side-by-side type or a sea-island type may be used, but is not particularly limited thereto.

In addition, the general yarn can be used as long as the yarn showing the physical properties of the heat shrinkage at 60 ~ 130 ℃ is less than 10%, for example, nylon fiber, polyester fiber, polyurethane satisfying the above physical property conditions It is preferred that at least one member be selected from the group consisting of fibers, polyacrylonitrile fibers, polyolefin fibers and cellulose fibers.

Particularly, in the step (iii), in order for the wrinkles to be obtained in the present invention to appear and to give an optimum touch feeling to the fabric, the latent crimping yarn is to be underlaminated by 2 to 10 with respect to the general yarn. It is preferable, and more preferably it can be made the interval of 3 to 5 skipping. As a result, even without a separate mechanical process, the yarn has the effect of forming natural wrinkles due to different thermal shrinkage of the yarn.

The pile yarn of step (ii) is intended to visually express the wrinkle effect of the fabric surface and at the same time give a soft surface feel, nylon fibers, polyester fibers, polyurethane fibers commonly used in the art to which the present invention belongs. , At least one selected from the group consisting of polyacrylonitrile fibers, polyolefin fibers and cellulose fibers can be used.

On the other hand, it is preferable that the manufacturing method of the wrinkle knitted fabric according to the present invention is a double raschel process using a plurality of beams. That is, it is preferable to perform the steps (i) and (ii) at the same time using a double laselle process.

More preferably, the double cell process may use six beams L1 to L6. 1 illustrates a double-lassel knitting machine that can be used when weaving a pleated knitted fabric according to an embodiment of the present invention. In FIG. 1, the beams L1, L2, L5, and L6 may supply yarns that form a ground fabric in the knit fabric, and the beams L3 and L4 may supply pile yarns that form a pile. At this time, the tissue input to each beam is, as shown in Fig. 2, the potential crimp (L1: 5-5-0-0 / 0-0-5-5 and L6: 5-5-5-5 / 0- 0-0-0), common yarns (L2: 0-1-1-1 / 1-0-0-0 and L5: 0-1-1-1 / 1-0-0-0), and pile yarns (L3: 0-1-0-1 / 1-0-1-0 and L4: 0-1-0-1 / 1-0-1-0) is preferable, and the potential winding houses and general yarns are supplied. The position of the beam is not limited thereto. In the case of using the double-lasel knitting machine, the ground fabric is formed on both sides, and a pile is formed therebetween, thereby forming a sandwich structure.

Subsequently, (iii) the pile yarn of step (ii) may be cut to obtain a plurality of fabrics in which pile yarns are inclined.

Thereafter, (iii) the fabric of step (iii) is dyed for 3 to 4 hours at 60 ~ 130 ℃. The dyeing method may be carried out by a conventional method in the art.

After the dyeing step, the dehydration process of the fabric, a softening agent treatment process, a coating process may be additionally performed.

Wrinkle knitted fabric produced by the above method is applicable to a variety of places where aesthetics and three-dimensional impression is required, such as clothing, automotive interior finish or architectural interior finish.

Hereinafter, preferred examples and comparative examples are presented to aid in understanding the present invention. However, the following examples are only for illustrating the present invention, and the present invention is not limited thereto.

Example  One

(Weaving process of fabric)

Latent crimp (PBT: PET = 50: 50, manufacturer: Japan KURARAY, product name: ARTRON 84dtx / 24f), general yarn (polyester fiber, PF100 / 48 SD, manufacturer: Hyosung), and pile yarn (polyester fiber) Were each mirrored to a double-lasel beam. At this time, the latent crimping yarns were mirrored to the beams corresponding to L1 and L6, the general yarns were mirrored to the beams corresponding to L2 and L5, and the pile yarns were mirrored to the beams corresponding to L3 and L4.

Subsequently, each of the normalized beams was mounted at the respective beam position of the double-lasel device (FIG. 1), and then passed through, and the potential crimps were applied to each beam (L1: 5-5-0-0 / 0-0-5). -5 and L6: 5-5-5-5 / 0-0-0-0), common yarn (L2: 0-1-1-1 / 1-0-0-0 and L5: 0-1-1 -1 / 1-0-0-0), and file yarn (L3: 0-1-0-1 / 1-0-1-0 and L4: 0-1-0-1 / 1-0-1- Enter the organization of 0), and make the ratio of the latent stalls and common yarns to 1: 1, and knit the ground fabrics by knitting so that the latent stalls are underlaid by 5 (00-55) Weaving

(File Yarn Cutting Process)

The middle part of the pile yarns arranged between the ground fabrics was cut to obtain two pieces of fabrics in which pile yarns were arranged obliquely.

(Dyeing process)

The fabric obtained in the above process was put into a dyeing machine and refined at a temperature of 60 to 85 ° C. for 15 minutes. 108.0 g of AS-3L [CLARIANT company] and 522.0 g of KAYALON BLACK-FAL [KAYALON company], 400 g of prepared stock solution, and 90 g of LPS-9900 (LPS-9900) were added to the mixture at 130 ° C. Wrinkles were formed by dyeing for hours to prepare a knit fabric.

Example  2 to 4

As shown in Table 1 below, the knitted fabric was prepared in the same manner as in Example 1 except that the type of latent crimp yarn, processing temperature, input structure, and dyeing process were not performed in the weaving process of the fabric. .

division Example 1 Example 2 Example 3 Example 4 Potential Winner (Product Name) ARTRON 84dtx / 24f SPH 100/24 XANADU 75/36 ISCRA 75/24 Processing temperature (℃) 170 160 160 160 group 00/55 00/66 00/44 00/33 Refining ○ × × ×

Note)-SPH 100/24 (modified PET: PTT = 50: 50, manufacturer: Saehan)

    -XANADU 75/36 (PET: PTT = 50: 50, Manufacturer: Hyosung)

    -ISCRA 75/24 (PET: PTT = 50: 50, manufacturer: Saehan)

    PBT: PolyButylene Terephthalate

    PET: PolyEthylen Terephthalate

    PTT: PolyTrimethylene Terephthalate

[ Test Example ]

The surface feel and appearance (wrinkle) state of the wrinkle knitted fabrics prepared in Examples and Comparative Examples were evaluated according to the following criteria. The evaluation method is a five-point scale (very good [5], good [4], good [3], poor [2], very poor [1] for five persons with ordinary knowledge in the technical field to which the present invention belongs. ]) And the average value is shown in Table 2 below.

division Example 1 Example 2 Example 3 Example 4 Surface tactile 5 5 4 3 Appearance (wrinkles) 5 5 4 3

As shown in Table 2, the wrinkle knitted fabrics of Examples 1 to 4 were found to have excellent surface feel and appearance (wrinkle) state.

As described above, the wrinkled knitted fabric and its manufacturing method according to the present invention is natural wrinkles are formed by the different heat shrinkage of the yarns during dyeing even without a separate machining process, thereby simplifying the manufacturing process of the wrinkled knitted fabric There are advantages to it.

Claims (5)

(Iii) 1: 1 to 2 latent wound yarns having a heat shrinkage of 10 to 30% at 60 to 130 ° C. and a stretch recovery rate of 30 to 70%, and a general yarn having a heat shrinkage of less than 10% at 60 to 130 ° C. Weaving the knitted fabric at a ratio of 1; (Ii) weaving pile yarns between the fabrics of step (iii); (Iii) cutting the pile yarn of step (ii) to produce a fabric in which pile yarns are arranged; And (Iii) dyeing the fabric of step (iii) at 60 ~ 130 ℃ Method for producing a wrinkled knitted fabric comprising a. The method of claim 1, The step (iii) is to make the latent crimping yarn underlapping in the number of skipping of 2 to 10 with respect to the general yarn. The method of claim 1, The manufacturing method is a method of manufacturing a wrinkle knitted fabric that is a double raschel (double raschel) process using a plurality of beams. The method of claim 3, The double-lasel process uses six beams (L1 to L6), and the tissues inputted to the beams are potential crimps (L1: 5-5-0-0 / 0-0-5-5 and L6: 5-5). -5-5 / 0-0-0-0), common thread (L2: 0-1-1-1 / 1-0-0-0 and L5: 0-1-1-1 / 1-0-0 -0) and pile yarns (L3: 0-1-0-1 / 1-0-1-0 and L4: 0-1-0-1 / 1-0-1-0) Manufacturing method. Garment, automotive interior finish or architectural interior finish made from pleated knit fabric produced by the method according to any one of claims 1 to 4.

Images