KR20200043635A - Process Pf Producing Knit Having Mellange Effect And Cooling Touch - Google Patents

Abstract

The present invention is to provide a fabric with aesthetically high sensitivity by realizing a natural melange effect by dying with rayon side or polyester side during dyeing. According to the present invention, it is possible to compensate for shrinkage and strength reduction when wet, which are disadvantages of viscose rayon, and maximize cooling touch, soft touch, and drape properties.

Description

Process Pf Producing Knit Having Mellange Effect And Cooling Touch}

The present invention complements the strength reduction and shrinkage during wetting, which is a disadvantage of viscose rayon, while maximizing the advantages of coldness, soft touch, and drape while maximizing the drapability while dying with rayon side or polyester side to realize a natural melange effect. It is to provide a highly sensitive fabric.

Rayon fiber is a regenerated fiber that uses cellulose extracted from wood pulp, and has excellent coldness, soft touch, and dyeing properties. It has beautiful color, gloss, drape and hygroscopic properties, and has strong advantages in generating static electricity, but it is weak in wet strength and chemical resistance. It is used by complementing the strength by manufacturing cotton or interwoven fabric with cotton fibers.

In the case of manufacturing knitted fabrics using such multi-tasking, if the feeding power and the loop length are not properly set, either the supplied yarn is over-supplied or supplied too little, resulting in bleeding or uneven density of fabric, and the steep angle If it is not adjusted, there is a problem that the front and rear sides are not distinguished or the yarns on the back and the surface overlap or cross.

In addition, when dyed with rayon side or polyester side during the dyeing process, the melange effect can be expressed, but there are many limitations in expressing various patterns since it is only limited to two-dimensional pattern expression.

Republic of Korea Patent Publication No. 10-2003-0089236 (released on November 21, 2003)

Therefore, according to the present invention, by solving the problems of the prior art, it compensates for the strength decrease and shrinkage during wetting, which is a disadvantage of viscose rayon, and maximizes the advantages of cold feeling, soft touch feeling, and drape property, thereby providing excellent strength and cold feeling, and silk touch. It is possible to knit a triple knitted fabric that simultaneously implements, and it is dyed with rayon side or polyester side for dyeing processing to realize a natural melange effect, and rayon is raised from the surface tissue to the upper layer to form a three-dimensional pattern to create aesthetically high sensitivity. Providing fabric is a technical task.

Therefore, according to the present invention, modal / polyester blend yarns and rayon yarns are used as surface yarns, spandex yarns are used as mid-layer yarns, and polyester filaments are used as back yarns, respectively, and a modal / polyester blend yarn of surface yarns is supplied through a circular knitting machine. Loop length of 13.0 ~ 13.4cm / 51W, rayon loop length of surface yarn 13.6 ~ 14.2cm / 51W, loop length of middle layer yarn 13.0 ~ 13.4cm / 51W, loop length of back yarn is 12.8 ~ 13.2cm / 51W Provided is a method for manufacturing a tricyclic knitted fabric having excellent melange effect and cold touch feeling.

Hereinafter, the present invention will be described in more detail.

The present invention complements the strength decrease and shrinkage when wetting, which is a disadvantage of viscose rayon, and maximizes the coldness, soft touch, and drape, which are the advantages, while dying with rayon side or polyester side to realize natural melange effect while dying. It is to provide a highly sensitive fabric.

The yarn used in the manufacturing method of the circular knitted fabric of the present invention uses modal / polyester blend yarn and rayon yarn (120D / 30F) as the surface yarn, spandex yarn as the middle layer yarn, and polyester filament as the back yarn.

Surface yarn alternately supplying modal / polyester blend yarn and rayon yarn with a number of strands of 1: 1 to 1: 2 gives a feeling of cold, touch, and shape stability, and manufactures aesthetically sensitive fabrics with a three-dimensional knitted fabric. It is preferred below. The surface yarn was made to contain a modal / polyester blend yarn in order to compensate for strength reduction and shrinkage when wet, which is a disadvantage of viscose rayon, and to maximize strength, cold feeling, soft touch, and drape. In particular, the rayon yarn is raised from the surface tissue to the upper layer by the single knit double pique structure to form a three-dimensional pattern as shown in the surface photograph of the knitted fabric shown in FIG. 1.

Spandex yarn is used as the middle layer yarn to impart elasticity to the fabric, and back yarn uses polyester filament to improve the strength and shape stability of the fabric.

When knitting the triple knit as in the present invention, if the feeding power and the loop length are not properly set, any one of the supplied yarns is over-supplied or less-supplied, resulting in upper ends or uneven density of the fabric, and not properly adjusting the steepness angle Otherwise, the front and rear sides are not distinguished, or the yarns on the front and back surfaces overlap or cross.

In the present invention, the loop length is a major factor in forming a knitted product, and the longer the loop length under the same conditions, the less the fabric density becomes loose, the lower the weight per unit area is, and the wider the fabric width becomes. Conversely, the shorter the loop length, the greater the density, the tighter the fabric, the higher the weight per unit area, and the narrower the fabric width.

In the present invention, the loop length of the modal / polyester blend yarn among the surface yarns is 13.0 ~ 13.4cm / 51W, the loop length of rayon among the surface yarns is 13.6 ~ 14.2cm / 51W, the loop length of the middle layer yarns is 13.0 ~ 13.4cm / 51W, the loop length of the back yarns Round knit to 12.8 ~ 13.2cm / 51W.

When the loop length of the yarn is less than the lower limit, the amount of yarn input is reduced and the density is high, the fabric becomes tight, the width of the fabric is narrow, and the problem of increasing the weight occurs. This may cause problems such as becoming loose, widening the fabric width, and lowering the weight.

The loop length is to set density, width, and weight to meet the requirements in the final processing of knitted fabrics, but there are some differences depending on the characteristics of the input yarn. In the present invention, the reason for the difference between the loop length of the surface yarn and the back yarn is to clarify the division of the front and rear sides, and to prevent crossing of the front and rear sides.

When supplied by the feeding device, the rapid feeding power of modal / polyester blend yarns among the surface yarns is 3-4 gf / d, the rapid feeding power of rayon among the surface yarns is 3-4 gf / d, and the rapid feeding force of the middle yarns is 1-2 gf / d, It is preferable to supply the back yarn with a rapid yarn power of 3 to 4 gf / d, and by adjusting the golden yarn force as described above, the yarn is over-supplied or less-supplied to prevent the occurrence of upper ends or the uneven density of the fabric.

In the case where the yarn feeding force is less than the lower limit line, the yarn is loosely supplied, and a normal loop is not generated, so the needle does not receive the yarn properly, resulting in a needle hole, and when the upper limit line is exceeded, the yarn is supplied tightly and wheels Knitting defects may occur as the thread breaks and the needle breaks due to the pulling force caused by the tension in the needle and the tension of the needle part.

 The steepness of the modal / polyester blend yarns among the surface yarns is 23 ~ 25 °, the steepness of rayon among the surface yarns is 23 ~ 25 °, the steepness of the middle layer yarns is 20 ~ 22 °, and the steepness of the back yarns is 29 ~ 32 °. It is preferable to supply as much as possible by preventing the front and back divisions or the problem of overlapping or crossing of yarns on the back and front surfaces.

When the yarn has a steep angle less than the lower limit, the yarn supply angle is less than the upper and lower motion range of the needle, and the yarn interferes with the latch of the needle, which can firstly cause damage to the yarn and cross the adjacent yarn. There is a problem, and when the upper limit line is exceeded, the hook of the needle is not receiving the yarn supply because the angle of the yarn supply increases, which may cause a problem that the loop cannot be generated.

As described above, the modality / polyester blend yarn and rayon yarn 120D / 30F are used as the surface yarn, spandex yarn as the middle layer yarn, and polyester filament is used as the back yarn. When it is made, the strength, coldness, and touch feeling are excellent, and in particular, the modal / polyester yarn is embossed from the surface tissue to the upper layer by the single knit double pique knitted fabric to form a three-dimensional pattern as shown in the surface photograph of the knitted fabric shown in FIG. When dyeing with rayon side or polyester side with proper use of dye, natural melange effect can be realized.

Therefore, according to the present invention, the strength decrease and shrinkage when wetting, which are the disadvantages of viscose rayon, are compensated, and the advantages of coldness, soft touch, and drape are maximized to provide excellent strength and coldness, and triple knit fabrics that simultaneously realize silk touch When dyed, it can be dyed with rayon side or polyester side to realize a natural melange effect, and rayon yarns emerge from the surface tissue to the upper layer to form a three-dimensional pattern to provide aesthetically sensitive fabrics.

1 is a photograph of the surface of the circular knitted fabric of the present invention.
2 to 9 is a test report of the circular knit of the present invention.

In the following examples, non-limiting examples of a method for manufacturing a tricyclic knitted fabric having excellent melange effect and cold touch feeling of the present invention are given.

[Example 1]

Modal / polyester (70% / 30%) blend yarn (20 water (Ne20 / 1) and rayon thread (120D / 30F) alternately with a strand number of 1: 1) as a surface yarn, spandex yarn (30D) as a middle layer yarn, poly Ester filaments (45D / 24F) were supplied to the circular knitting machine at a rapid knitting force and a rapid knitting angle of Table 1 through separate feeding yarns with a back yarn to obtain a loop length of Table 1. The following table was measured by measuring the physical properties of the manufactured circular knitted fabric. It is shown in 1.

division Yarn Rapid power (gf / d) Sudden angle (degree) Roof length (cm) surface RAYON120D 4 24.5 13.8 Back side POLY45D 4 30 13 Middle class SPAN30D 2 21 13.2 Organization M / P150D 4 24.5 13.2

 division Tensile strength (N) Tear strength (%) Elongation recovery rate (%) Remark wale Coos wale Coos wale Coos Example 1 195.2 207.7 15 24 90 90

Tensile strength-(KS K 0642: 2016,8.14.1, B method, C.R.E., Grab method): N

Tear Strength-(KS K 0642: 2016,8.17.1, A-1, C.R.E., Single Tongue Method): N

Elongation recovery rate-(KS K 0642: 2016, 8.16.2 E method):%

Claims (3)

Modal / polyester blend yarn and rayon yarn are used as surface yarn, spandex yarn as middle layer yarn, and polyester filament is used as back yarn to supply circular knitting machines through separate yarns, so that the loop length of modal / polyester blend yarn is 13.0 ~ 13.4cm / 51W, rayon loop length of surface yarn is 13.6 ~ 14.2cm / 51W, loop length of middle layer yarn is 13.0 ~ 13.4cm / 51W, loop length of back yarn is 12.8 ~ 13.2cm / 51W, melange effect and cold feeling Method of manufacturing a tricyclic knitted fabric having excellent touch feeling. According to claim 1,
The surface yarn modal / polyester blend yarn and rayon yarn is a method of manufacturing a high-density circular knitted fabric excellent in quick drying and non-spinning property, characterized in that the number of strands is supplied in 1: 1 to 1: 2. According to claim 1,
When supplied by the yarn feeding device, the rapid feeding power of modal / polyester blend yarns among the surface yarns is 3-4 gf / d, the rapid feeding power of rayon among the surface yarns is 3-4 gf / d, and the rapid feeding force of the middle yarns is 1-2 gf / d, The feeding power of the back yarn is 2 ~ 3gf / d, and the feeding angle of the modal / polyester blend yarn among the surface yarn is 23 ~ 25 °, the feeding angle of rayon among the surface yarn is 23 ~ 25 °, and the feeding angle of the middle layer yarn is 20-22 °, the steepness of the back yarn is 29-32 °, a method for manufacturing a high-density circular knitted fabric having excellent sweat-absorbent quick-drying properties and non-invasive property.

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