KR20210101835A - Apparel fabric manufacturing method using polypropylene to improve clothing functionality - Google Patents

Abstract

The present invention relates to a method for manufacturing a fabric for clothes to improve functionality of clothes using polypropylene, and more specifically, to a method for manufacturing a fabric for clothes, capable of overcoming shortcomings such as heat resistance and flame-retardant properties and applying the advantages of polypropylene. According to the method, in a spinning process of polypropylene yarn, a dye is prepared by previously mixing necessary color pigments in consideration of a color of a fabric to be woven. In a warp process, S-twisting or Z-twisting of 500-600 TM is applied to a yarn. In a setting process of the yarn, the yarn is set by steam, at a temperature of 100℃ or less for 30-40 minutes in consideration of the characteristics of the heat-sensitive yarn, and a warping process is performed on the set yarn. A weaving process is performed at 200-300 RPM which is lower than the normal speed by using a low-rate weaving machine. In a processing process, when tentering, a setting process is performed on the fabric two times at a rate of 30-50 RPM at a temperature of 125℃ or less, thereby making the fabric have a stable shrinkage rate.

Description

Apparel fabric manufacturing method using polypropylene to improve clothing functionality}

The present invention relates to a method of manufacturing a clothing fabric with improved functionality of clothing by using polypropylene (hereinafter referred to as 'P · P'), and more specifically, overcomes disadvantages such as heat resistance and flame retardancy, and It relates to a method of manufacturing a fabric for clothing that can utilize the advantages of P·P.

As is well known, P·P is one of the olefinic fibers and is a fiber containing polypropylene as a main component, and has a chemical structure of _{CH 2 =CH.}

In the case of P·P fibers, the specific gravity of the resin is 0.90 g/cm 3 , and the specific gravity of the fully cultured fiber is 0.91 g/cm 3 . Even if other additives such as pigments are added here, the specific gravity does not easily exceed 0.93 g/cm 3 .

Therefore, it is possible to make a fiber that floats in water without any cross-sectional deformation.

In addition, since it has a property of rejecting moisture in principle, it can maintain a permanent water-repellent effect when used as clothing.

Conversely, the biggest disadvantages of P/P fibers are heat resistance, which is weak against heat, and flame retardancy, which makes dyeing difficult.

Due to these disadvantages, P P fiber has not been used for clothing until now, but is used for medical purposes such as diapers, gowns, and masks, for industrial purposes such as various filters and packaging equipment, for agriculture, and for household products.

However, since P P fibers as described above have many advantages such as antibacterial properties, light weight, heat retention, quick-drying properties, and wicking properties, the need for the development of fabrics suitable for clothing using them is highly demanded.

Although the present invention has many advantages as described above, P·P, which has not been used for clothing due to several disadvantages, is well managed from the yarn spinning process to the twisting and weaving process to weave into a fabric for clothing with many advantages. By making this possible, it is an object of the present invention to provide a useful and eco-friendly fabric.

As described above, in the present invention, it was difficult to weave a fabric that can be used for clothing due to the disadvantages of the existing P/P yarn. By effectively managing the temperature in the immediate processing, it became possible to manufacture fabrics for clothes using P/P yarns. It solves the disadvantages of P/P yarns and provides very useful fabrics for clothes by taking advantage of the advantages of P/P yarns. It is a useful invention that greatly improves the

In the present invention, weaving a fabric using the spun P P yarn, adding an appropriate twist to the yarn during warp work, and taking into account the characteristics of the yarn weak to heat in the yarn setting process, performs the finishing work after setting, In addition, the speed in the weaving process and the tentering and setting temperature are well managed during processing after weaving, so that the desired P P fabric can be manufactured. .

First of all, in order to complete the present invention, it is necessary to solve the problem of flame retardancy, which is a disadvantage of P·P. This problem is solved by mixing the necessary colors in advance in consideration of the color of the fabric to be woven in the yarn spinning process and producing (Dope dYed). can solve it

In addition, P P yarns have a direct and indirect weakness to heat. In particular, in the processing process, high temperature treatment is essential for dyeing when weaving with other fibers, and it is very important to change these conditions. In addition, when manufacturing 100% P P fabrics, the fact that sizing is impossible because moisture absorption is rejected must also be sufficiently taken into account.

The manufacturing method according to the present invention will be described in detail for each process.

P·P yarn preparation

As described above, since the moisture content (Regain) of P P yarn is only about 0.05%, sizing is impossible. It causes defects and a decrease in productivity.

For this purpose, an appropriate twist is applied to the yarn during warp operation.

When excessive twisting or weak twisting is applied, the yarn itself changes its properties, such as tangled or easily cut, so careful twisting is required.

Suitable examples are 500 to 600 TM/S twists or Z twists.

After that, in the setting process of the yarn, set with steam at 100℃ or lower for 30 to 40 minutes due to the nature of the yarn, which is weak to heat, and then perform the finishing work.

weaving process

In the weaving process, it is important to weave by minimizing the number of revolutions of the loom. While using a low-speed loom, the speed should be lower than the normal speed, and the preferred rotation speed is 200~300RPM.

Manufacturing process

In the post-weaving processing process, attention should be paid to heat setting. In general, a process called heat setting is essential to eliminate the shrinkage rate of fabrics (the phenomenon of stretching or shrinking during washing). looks like

However, since P·P yarn is particularly weak to heat, it makes a stable shrinkage rate through two setting processes at a speed of 30 to 50 RPM at 125°C or lower during tentering work. When the heat setting is performed above the above temperature, the fabric hardens and thus loses product properties for clothing.

Hereinafter, specific examples will be described according to the type of P P fabric to be woven.

Example 1 (100% P P fabric)

Among the spun P·P yarns, 550TM/S yarn or Z yarn was applied to the yarn during warp work.

In the yarn setting process, the setting process was performed after setting with steam for about 30 minutes while managing the temperature not to exceed 100℃ due to the nature of the P/P yarn, which is weak to heat.

In the weaving process, the rotation speed of the loom was set to 250RPM.

In the post-weaving processing process, two setting processes were performed at about 40RPM during tentering at 120℃.

Accordingly, it was possible to manufacture 100% P P fabric.

Example 2 (Texture P P fabric)

Among the spun P·P yarns, 550TM/S yarn or Z yarn was applied to the yarn during warp work.

In the setting process of the yarn, the setting process was performed after setting with steam for 40 minutes while managing not to exceed 100℃.

During weaving, either weft or warp yarns used P·P yarns, and the other yarns used general yarns (cotton, polyester, nylon, wool, denim, etc.).

In the weaving process, the rotation speed of the loom was 300RPM.

After weaving, a dyeing process was added to dye the general yarn, but the pretreatment processes such as washing, bleaching, and refining were the same as when weaving the general yarn, but the temperature was controlled to be 125°C or less.

In the post-weaving processing process, two setting processes were performed at about 40RPM during tentering at 120℃.

By this process, it was possible to manufacture a nonwoven P P fabric.

Example 3 (Span fabric made of 100% P P yarn)

The process was performed under the same conditions as in Examples 1 and 2, but spandex yarn was used as a covering for P P yarn. In general spandex yarn, heat setting is not possible below 125℃, but if you purchase a recently developed product (Hyosung #H-450 Co., Ltd.) and cover it, heat setting is possible even below 125℃.

Example 4 (Span fabric made of weaving P P yarns)

The process is carried out as in Example 3, but the dyeing process is added in the processing process, and the temperature control is taken care of as in Example 2.

Example 5 (P P P double fabric for easy sweat discharge)

Weaving is carried out in the same process as in the above embodiment, but when weaving is made in a double weave, sweat from the skin is easily discharged from the tissue of the fabric, so that it is suitable for sportswear and the like.

And in the case of a double weaving weave in which general yarns are supplied at the same time as weft or warp yarns, when weaving the part that touches the skin with P P yarn, the moisture content of 0.05% P P P yarn when sweat gets on the fiber portion woven with P P yarn The fabric always keeps you dry, so you feel comfortable.

According to the clothing fabrics with improved functionality of clothing using P P yarns manufactured in this way, they are useful for health due to their antibacterial properties, are light and have excellent heat retention, so they are very suitable for clothing, and permanent water repellency and sweat resistance. As it is well discharged and always maintains a comfortable state, it also has its own buoyancy, thereby providing a very useful fabric for sports clothing.

Claims (4)

In the P P yarn spinning process, in consideration of the color of the fabric to be woven, the required colors are mixed in advance and produced (Dope dYed).
During warp work, S- or Z-sequence is applied to the yarn at 500 to 600TM.
In the setting process of the yarn, due to the nature of the yarn, which is weak to heat, it is set with steam at 100℃ or lower for 30 to 40 minutes and then the finishing work is performed.
In the weaving process, while using a low-speed loom, weaving is performed at 200-300 RPM lower than the normal speed,
In the processing process, a method of manufacturing a garment fabric with improved functionality of clothes using polypropylene, characterized in that it makes a stable shrinkage rate through two setting steps at a speed of 30 to 50 RPM at 125° C. or less during tentering operation. According to claim 1,
In weaving, either weft or warp yarns use general yarns, not P/P yarns, and add a dyeing process to dye the general yarns after weaving, and the temperature is managed so that the temperature is below 125℃. A method of manufacturing a garment fabric that improves the functionality of clothes using polypropylene. According to claim 1,
A method of manufacturing a garment fabric with improved functionality of clothes using polypropylene, characterized in that the P·P yarn is covered with spandex yarn that can be set to heat even at 125° C. or less. by the method of claim 1
P P yarns are pre-applied with the necessary colors during the spinning process.
Garment fabric with improved functionality of clothes using polypropylene, characterized in that it is woven in a state in which S or Z is applied at a warp of 500 to 600TM.