KR101036546B1 - Knitted fabric having wrinkles using the latent crimp fiber - Google Patents

Abstract

The present invention relates to a knitted fabric using latent crimping yarns, and more particularly, a latent crimping yarn having a thermal contraction rate of 10 to 30% and a stretch recovery rate of 30 to 70% at 60 to 130 ° C, and 60 Fabrics knitted with a general yarn having a heat shrinkage ratio of less than 10% at ˜130 ° C. in a ratio of 1: 1 to 2: 1; And a pile yarn arranged obliquely with the fabric, wherein the fabric relates to a pleated knit fabric in which latent crimping yarns are underlaminated at regular intervals with respect to the general yarns to form pleats.

The wrinkled knitted fabric according to the present invention has a merit that the natural wrinkles are formed by different heat shrinkage rates of the latent crimps during dyeing even without a separate machining process, thereby simplifying the manufacturing process of the wrinkled knitted fabric.

Knit, Crease, Latent Caterpillar, Underlapping, Double Cell

Description

Knitted fabric using latent weft yarn {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 pleated knitted fabric using latent crimping yarns, and more particularly, to a pleated knitted fabric having natural wrinkles and excellent surface feel even without a separate machining process.

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 forming wrinkles 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 pleated 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 a latent crimping yarn having a heat shrinkage rate of 10 to 30% and a recovery rate of stretch of 30 to 70% at 60 to 130 ° C, and a general heat shrinkage rate of less than 10% at 60 to 130 ° C. Fabrics knitted by sag of 1: 1 to 2: 1 ratio; And pile yarns arranged obliquely with the fabric, wherein the fabric provides a wrinkled knitted fabric underlapping the latent crimping yarn at regular intervals with respect to the general yarn.

According to the present invention, it is preferable that the latent crimping yarn is underwrapped with a leap number of 2 to 10 with respect to the general yarn.

In addition, the present invention provides a garment, automotive interior finish or architectural interior finish manufactured from the pleated knitted fabric.

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 yarns having a heat shrinkage of less than 10% at 60 to 130 ° C.

Wrinkle knitted fabric according to the present invention is a latent crimping yarn having a thermal contraction rate of 10 to 30% and a stretch recovery rate of 30 to 70% at 60 to 130 ° C, and a general yarn having a thermal contraction rate of less than 10% at 60 to 130 ° C. It includes a knitted fabric (knitting) in the ratio of 1 to 2: 1 and the pile yarn arranged inclined with the fabric.

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.

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

The pile yarn 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, polyacrylonitrile commonly used in the art to which the present invention belongs. One or more selected from the group consisting of fibers, polyolefin fibers and cellulose fibers can be used.

In particular, the pleated fabric according to the present invention, in order to impart the pleat effect to be obtained in the present invention, the latent weaving yarn: ordinary yarn knitting, that is, underlapping in a ratio of 1: 1 to 2: 1 And weaving with overlapping.

At this time, in order to give the fabric the optimal touch feeling and wrinkle effect, it is preferable that the potential crimp is underlaminated at a predetermined interval with respect to the general yarn, more preferably 2 to 10, Preferably it can be underwrapped with a jump of 3 to 5.

As described above, the wrinkle knitted fabric of the present invention has a structure in which latent crimped yarns are underlaid at regular intervals with respect to the general yarns, thereby forming natural wrinkles due to different heat shrinkage rates of yarns during dyeing, even if no separate machining is performed. The effect is possible.

On the other hand, the method of manufacturing the pleated 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 the above manufacturing method, in order for the wrinkles to be obtained in the present invention appear, it is preferable that the latent crimping yarn in the step (iii) is underwrapped by a jump number of 2 to 10 with respect to the general yarn, more preferably. May be a jump interval of 3 to 5.

In particular, the manufacturing method is preferably a double raschel process using a plurality of beams. That is, it is preferable to perform the steps (iii) and (ii) at the same time using the 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 to form a ground fabric in the knit fabric, and the beams L3 and L4 may supply pile yarns to 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 yarn (L2: 0-1-1-1 / 1-0-0-0 and L5: 0-1-1-1 / 1-0-0-0), and pile yarn (L3: 0-1-0-1 / 1-0-1-0 and L4: 0-1-0-1 / 1-0-1-0) are preferred, 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.

The wrinkle knitted fabric of the present invention that can be produced by the above method can be variously applied where aesthetics and three-dimensional impression are required, such as clothing, automotive interior finishing materials or architectural interior finishing materials.

Hereinafter, preferred examples and comparative examples are presented to aid in understanding the present invention. However, the following examples are intended to illustrate the present invention without limiting it 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: Kolon), 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 thread (L2: 0-1-1-1 / 1-0-0-0 and L5: 0-1-1 -1 / 1-0-0-0), and pile yarn (L3: 0-1-0-1 / 1-0-1-0 and L4: 0-1-0-1 / 1-0-1- An organization with 0) was entered, and the ratio of latent stalls and common yarns was 1: 1, and the number of potential stalls was 5 (L1: 5-5-0-0 / 0-0-5) -5, L6: 5-5-5-5 / 0-0-0-0) to prepare the ground fabric by knitting (kitting) to underlap.

(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. The dye (TERATOP ORANGE-HL [CIBA company] 48.6 g, FORON RED AS-3L [CLARIANT company] 36.0 g, FORON BLUE) 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 (4)

The ratio of 1: 1 to 2: 1 latent crimps with 10 ~ 30% heat shrinkage at 60 ~ 130 ℃ and 30 ~ 70% stretch recovery rate, and general yarns with heat shrinkage below 60% at 60 ~ 130 ℃ Knitted fabrics; And pile yarns arranged obliquely with the fabric, The fabric is wrinkled knitted fabric is formed by lapping the latent crimping yarn with a certain number of intervals with respect to the general yarn. The method of claim 1, The latent weft yarn is wrinkled knitted underlaid in the number of 2 to 10 with respect to the general yarn. The method of claim 1, The latent crimping yarn is a wrinkle knitted fabric that is a composite spinning of two polymers selected from the group consisting of nylon, polyester, polyurethane, polyacrylonitrile, polyolefin and cellulose. Clothing, automotive interior finishes or building interior finishes made from the pleated knit fabric according to any one of claims 1 to 3.

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