KR20000013798A - Production method of finest yarn warp knitted paper - Google Patents

Abstract

PURPOSE: A production method of a warp knitted paper applied a finest yarn is provided to have the excellent surface touch, the drapability and the tearing strength, and to have the merits such as the pneumaticity, the softness and so on. CONSTITUTION: The warp knitted paper is produced by: producing the warp knitted paper with knitting by mixing an elution-typed polyester fiber to be able to do the finest yarn under 0.07 denier of the single yarn fineness, a yarn of 15 ¯ 30 denier of the single yarn fineness, and a multifilament of 2¯ 3 denier of the single yarn fineness when knitting a warp; pre-setting after napping the surface of the warp knitted paper; passing the ullage process to flow the elution component of the elution-typed polyester fiber; passing the after-processing process such as a dye, a buffing, and so on; the mixing ratio of the multifilament of 15 ¯ 30% for the weight of the final processed warp knitting paper.

Description

Method for Manufacturing of Knit made of ultra fine yarn

The present invention relates to a method for manufacturing a novel microfiber warp knitted fabric, and more particularly, to a method of manufacturing a microfiber warp knitted fabric having very soft drape and excellent tear strength.

In general, fabrics using ultrafine fibers are widely used for clothing due to many advantages such as softness, soft and unique gloss effect, and warmth in addition to soft touch.

Microfibers can be classified into three types: direct spinning, two-component split spinning, and two-component elution spinning. Fine fiber can be manufactured by direct spinning with 0.3-0.5 denier and two-component split. The fineness of the fine fibers which can be produced by spinning method is 0.2 denier, whereas the fineness of the fine fibers which can be produced by two-component eluting spinning method can be prepared up to the level of 0.001-0.05 denier.

Microfibers commonly used in the manufacture of fabrics or artificial suede are eluting microfibers, and in the case of the fabrics to which the eluting microfibers are applied, strength is weakened after the eluting component is eluted and the tear strength of the fabric is lowered. Examples of fabrics produced by interweaving microfiber yarns and high shrinkable yarns and then weaving them are now available.

On the other hand, compared to fabrics, the manufacturing speed is faster, more flexible, more elastic, more moisture-containing and less wrinkled, and the technology to commercialize by applying microfiber to warp knitted fabrics that are faster than weaving. It is not developed because of its characteristics.

That is, when the microfibers manufactured by the direct spinning method are applied to warp knitted fabrics, many filaments are dispersed, and thus the diameter is very poor, and the touch and lighting effects on the surface of the finished product are poor, and the ultrafine fibers made by the two-component split type composite spinning method are used. When the fiber is applied to warp knitted fabrics, the divided fibers generally have incompatibility, so that the two components are separated by tension or friction received during normal and smelting, resulting in poor rigidity and plate making, and the manufactured products also have poor appearance. Done.

In addition, when applied to warp knitted fabrics using yarns prepared by a two-component eluting spinning method, the warp knitted fabrics may have good appearance as well as regularity and knitability. Not only is it too soft, but also tear strength falls, and it is unsuitable for practical use.

In order to achieve the above object, the present inventors have faced the fact that when the microfiber yarn is applied to the warp knitting field, it is not commercialized due to various defects generated during canon and post-processing, and various studies for overcoming these defects have been conducted. Through the present invention was completed as follows.

That is, the present invention provides a microfiber warp knitted fabric manufacturing method that can be added to the fine knitted fabric with a fast manufacturing speed, flexible, stretchable, high content, and wrinkles by applying a microfiber yarn to a good touch and excellent appearance Has its purpose.

Microfiber warp knitted fabric production method of the present invention for achieving the above object, in the production method of warp knitted fabric by knitting the warp yarns, and post-processing to produce a warp yarn, when knitting the warp yarn, single yarn fineness 0.07 denier Elution-type polyester fiber that can be microfibers of the following, a yarn having a single yarn fineness of 15 to 30 denier and a multifilament having a single yarn fineness of 2 to 3 denier are mixed and knitted, and the surface is raised and then heated to a predetermined temperature for pre-setting After eluting, the eluted component in the eluted polyester fiber is eluted and then processed.

And it is more preferable that the blending ratio of the yarn is 5 to 20% of the final processed warp knit weight, and the blending ratio of the multifilament is 15 to 30% of the final processed warp knit weight.

Hereinafter, the configuration and operation of the present invention will be described in detail through specific examples.

As described above, the method for manufacturing microfiber warp knitted fabric of the present invention is an eluted polyester fiber capable of microfiberization of single yarn fineness of 0.07 denier or less when knitting a warp yarn, yarn and single yarn fineness having single yarn fineness of 15 to 30 denier. After mixing and mixing 2 to 3 denier multifilament to manufacture a warp knitted fabric, after raising the surface of the warp knitted fabric, and then pre-set the weight loss process of eluting the eluting component of the eluting polyester fiber dyeing, It is preferable to prepare a microfiber warp knit by a post-processing process such as buffing, and the blend ratio of the yarn is 5 to 20% of the weight of the final processed warp knit, and the blend ratio of the multifilament is the final warp warp knit. It is desirable to make it 15 to 30% of the weight.

The reason for using the elution type polyester fiber that can be microfiberized to 0.07 denier or less in such a manufacturing method is that if the fineness of the microfiber is thicker than 0.07 denier, the soft touch is poor and not only the quality but also the lighting effect is not expressed.

The reason why mixed yarns with single yarn fineness of 15 ~ 30 denier is used is to give drape property to warp knitted paper. If single yarn fineness is less than 15 denier, it is necessary to use a large amount to maintain drape. It has a bad effect on the touch, and when the single yarn fineness exceeds 30 denier, process passability such as canon and weaving deteriorates. It is difficult to limit the ratio of such yarns to 5-20% of the final processed warp knit weight when less than 5% of the warp knit weight is difficult to exhibit proper drape property. This is because the soft touch due to the attenuation is attenuated.

In order to improve the tear strength of the final processed warp knitted fabric, the single filament fineness is used when the multifilament having 2 to 3 denier is used when the mixed ratio is 15 to 30% of the weight of the final processed warp knit.

Knitting the warp knitted fabric with these three yarns can be manufactured using various knitting machines. For example, three-bar tricot knitting machines having three guides belonging to one needle can be knitted.

After raising the surface of the knitted knitted fabric as described above, pre-set to a predetermined temperature, and after the weight loss process of eluting the eluting component of the eluted polyester fiber, after the post-processing process such as dyeing or buffing, and finally A microfiber warp letter is prepared by setting.

Example 1.

Polyethylene terephthalate as an ingredient, and polyester copolymer polymer having excellent alkali hydrolysis property as a sea component, but an eluting polyester fiber having a super fineness of 0.05 denier formed after dissolving the sea component is used, and the fineness of the monofilament is 2.5 A denier tear strength reinforcing multifilament was used at a mixing ratio of 29%, and a yarn having a fineness of 20 deniers was mixed at 11% mixing, and a warp knitted fabric having a density of 23 C / cm was knitted.

After raising the warp knitted fabric prepared in this way, pre-set at a temperature of 190 ° C. and a speed of 25 m / min, and soaked for 30 minutes in a sodium hydroxide solution maintained at a temperature of 98 ° C., followed by dyeing and buffing, and then 130 Microfiber warp knitted paper was prepared by final setting at a temperature of 25 ° C. and a speed of 25 m / min.

Comparative Example 1.

Polyethylene terephthalate as an ingredient and polyester copolymer polymer having excellent alkali hydrolysis property as a sea component, but an eluting polyester fiber having a super fineness of 0.09 denier formed after dissolving the sea component is used, and the fineness of the monofilament is 2.5 A denier tear strength reinforcing multifilament was used at a mixing ratio of 29%, and a yarn having a fineness of 20 deniers was mixed at 11% mixing, and a warp knitted fabric having a density of 23 C / cm was knitted.

The warp knitted fabric thus prepared was subjected to the same post-processing process as in Example 1 to prepare a microfiber warp knitted fabric.

Comparative Example 2.

Polyethylene terephthalate as an ingredient, and polyester copolymer polymer having excellent alkali hydrolysis property as a sea component, but an eluting polyester fiber having a super fineness of 0.05 denier formed after dissolving the sea component is used, and the fineness of the monofilament is 2.5 A denier tear strength reinforcing multifilament was used at a mixing ratio of 23%, and a yarn having a fineness of 10 deniers was mixed at a mixing ratio of 15%, and a warp knitted fabric having a density of 23C / cm was knitted.

The warp knitted fabric thus prepared was subjected to the same post-processing process as in Example 1 to prepare a microfiber warp knitted fabric.

Comparative Example 3.

Polyethylene terephthalate as an ingredient, and polyester copolymer polymer having excellent alkali hydrolysis property as a sea component, but an eluting polyester fiber having a super fineness of 0.05 denier formed after dissolving the sea component is used, and the fineness of the monofilament is 2.5 A denier tear strength reinforcing multifilament was used to have a mixing ratio of 11%, and a yarn having a fineness of 20 deniers was set to a mixing ratio of 35% to prepare a warp knitted fabric having a density of 23C / cm.

The warp knitted fabric thus prepared was subjected to the same post-processing process as in Example 1 to prepare a microfiber warp knitted fabric.

The microfiber warp knits of the Examples and Comparative Examples were evaluated in the following items, and are shown in Table 1 below.

1) Softness

Based on sensory test results by 10 experts, 8 or more judged to be soft ◎, 5 to 7 judged to be soft △, and 8 or more judged to be poor soft. Divided.

2) Drape property

On the basis of the sensory test results by 10 experts, 8 or more judged that there was drape, ◎, 5-7 judged that it was drape, △, and 8 or more judged poor drape. Divided by quality.

3) lighting effects

Based on the sensory test results by 10 experts, 8 or more judged that there was a lighting effect, and ◎ 5-7 judged that there was a lighting effect. The case was divided by the quality of ×.

4) appearance

Based on the results of sensory examination by 10 experts, ◎ cases where 8 or more were judged to have good appearance, and △, and 5 or 7 cases judged to be good appearance by △, and 8 or more judged as poor appearance by the quality of × .

5) tear strength

Tear strength in the wale direction was measured by the TONGUE method specified in JIS L1096.

Comparison of Quality Characteristics of Microfiber Warp division Softness Drape Castle Lighting effect Exterior Tear strength (kg) Example 1 ◎ ◎ ◎ ◎ 1.5 Comparative Example 1 △ ◎ × △ 1.2 Comparative Example 2 ◎ × ◎ △ 1.3 Comparative Example 3 ◎ △ ◎ △ 0.8

According to the results of Table 1, it can be seen that the microfiber warp knitted fabric of Example 1 prepared according to the present invention is excellent in softness, drape, lighting effect, appearance and tear strength.

As described above, the microfiber warp knitted fabric manufacturing method of the present invention enables the production of warp knitted fabric by applying the microfiber to the knitted fabric, so that the production speed is relatively faster than the fabric production speed, and when the microfiber is applied to the knitted fabric It is possible to solve problems such as deterioration of drape and degradation of tear strength, and the microfiber warp knitted fabric produced according to this manufacturing method is unique to microfiber yarn while retaining the advantages of knitting, elasticity, and flexibility. It will have a soft and unique appearance.

Claims (2)

In the warp knitted fabric manufacturing the warp knitted by knitting the warp, post-processing, When knitting the warp, the eluted polyester fiber capable of microfiberization of single yarn fineness of 0.07 denier or less, a yarn of single yarn fineness of 15 to 30 denier and a multifilament of single yarn fineness of 2 to 3 denier are mixed and knitted. After raising and then pre-set by heating to a predetermined temperature and eluting components in the eluted polyester fiber eluting after processing by the fine-fiber warp knitted fabric characterized in that the processing. The method of claim 1, wherein the blending ratio of the yarn is 5 to 20% of the weight of the final processed warp knit, and the mixed ratio of the multifilament is 15 to 30% of the weight of the final processed warp knit. Microfiber warp knitted paper manufacturing method.