KR100465352B1 - Method for manufacturing of sectional burn-outfinishing yarn - Google Patents

Abstract

The present invention relates to a method of manufacturing a partial erecting process, and a specific feature is to produce a partial erecting process by partially etching and heat treating a chemical which decomposes only one fiber on the surface of a fiber combination having different chemical resistance. will be.

In other words, it is a heterogeneous fiber combination having different chemical resistances, and a fiber combination is made by combining cellulose-based fibers including polyester fibers and triacetate, and is obtained by breaking down the fiber of the edge part in partial chemical treatment. It is a method of manufacturing a partial erosion process, characterized in that.

Description

Method for manufacturing of sectional burn-outfinishing yarn

The present invention relates to a method of manufacturing a partial ergotization process, and more particularly to producing a partial erecting process by partially etching and heat-processing a chemical which decomposes only one fiber on the surface of a fiber combination having different chemical resistance It is.

Recently, the global apparel and textile market is in oversupply.

Therefore, it is difficult to stimulate consumer's new purchase with general products, so each industry such as weaving, dyeing, sewing, etc., is starting to fashion.

Among them, Saga is closely related to the field of basic material development and plays an important role.

On the other hand, as the market situation becomes very difficult due to the participation of Asian textile markets, efforts are being made to create added value by special processing and products with high originality unmatched.

In this sense, as one of the special processing technologies that can maximize the added value, the development of the partial erosion processing method is considered to be one of the ways to escape the extreme material poverty in the textile industry.

Conventional corrosion processing is possible only in the state of the fabric, and the method of opulal processing is known as the method. Specifically, an example can be seen in acetate fabrics, and a long time ago, a paste containing soluble salts such as tungstic acid and molybdenum acid on cotton fabric And a white insoluble precipitate on the fabric by passing through a solution of magnesium, calcium salt, dyeing, etc.

Later, zinc oxide, titanium oxide, barium sulfate, etc. were developed to print arcs mixed with protein solution as an adhesive. This method was further developed to employ a white pigment resin, which is a chemically different fiber. There was also a method to obtain a three-dimensional design by making a partially transparent pattern by melting and dissolving one fiber blended or inlaid by chemical reaction.

The present invention aims to improve the existing erosion process that is processed after the fabric is made, and to direct the erosion process on the yarn and to make a fiber bond by combining a popular fiber with polyester fiber and other fibers, partial erosion By making a high value added fiber yarn.

This will be described in more detail as follows.

1 is a small-volume production manufacturer for producing a partial erosion process of the present invention

Illustration

Figure 2 is a mass production of the erosion manufacturing machine for producing a partial erecting process of the present invention

It is an illustration of a manufacturing method.

* Explanation of symbols for main parts of the drawings

1: blood meal 2: container

3: roller 4,4a: heater

Erosion processing of the present invention is a mixture or a combination of fibers having different chemical resistance, after partially destroying a chemical that destroys only one fiber, and then dissolves, heat treatment or aging over a certain temperature (destructed by chemicals over time) It is the processing method to give the pattern which partly eluted the thread by change. Therefore, it is possible to make practical use by selecting a drug that destroys and leaps out a specific fiber and develops a basic relationship according to a combination of representative fibers and drugs.

ㆍ Cellulose Plant Fiber (Cotton, Hemp, Rayon, etc.)-Acids

ㆍ Protein-based animal fiber (wool, silk, etc.)-alkalis

ㆍ Semi-synthetic fiber (acetate, etc.)-Acids, oxides (benzoyl peroxide)

However, it is easy to develop around polyester fiber which has excellent chemical resistance and it is easy to develop cellulose fiber (triacetate or acetate, etc.) which is weak against chemicals by blending or blending, or using core yarn and core twisted yarn. <Table 1> is as follows.

<Table 1> Combination and Form of Fiber

Combination of fibers Form of yarn In the form of fabric or knit Polyester / cellulose polyester / triacetate or daacetate BlendSacoreCyanTwist Blended, teaching brushed pile

Therefore, since the main agent of the fiber to be broken into the drug is a cellulose-based fiber in a broad sense including triacetate, these decomposition mechanisms will be described below.

Cellulose fibers are inherently sensitive to the action of acids and are easily hydrolyzed by strong acids. Cellulose fibers, a polymer material, have a degree of polymerization due to hydrolysis, and as the reaction proceeds further, cellulose becomes a single molecule and is dissolved in water. In particular, when the moisture is very low, when heated under strong acidity, the water contained in the cellulose fiber molecules is eliminated to carbonize the fiber.

However, when the sulfuric acid concentration is more than 95%, sulfuric acid remains in an unsaturated state, so the hydration power is very strong and carbonization proceeds easily even at room temperature.

However, since it is very dangerous to put a large amount of concentrated sulfuric acid directly into the printing lake, as an alternative, a chemical which decomposes by heating to generate sulfuric acid is used. For the main drugs are various as shown in Table 2.

These inorganic acid generators do not generate free sulfuric acid in the ink blade, but decompose themselves by generating strong sulfuric acid after drying the ink. The chemical reaction is as follows.

① 2NaHSO ₄ -heating → NaSo ₄ + H ₂ SO ₄

② AI ₂ (SO ₄ ) ₃ + 2H ₂ O-heating → AIOHSO ₄ + H ₂ SO ₄

2AIOHSO ₄ + 2H ₂ O-heating → AI (OH) ₃ + H ₂ SO ₄

<Table 2> Erosion Pharmaceuticals

Drug name Chemical formula Remarks Sodium sulfate NaSHO ₃ .H ₂ O Solubility 28.6g / 100g (25 ℃) 100.0g / 100 (100 ℃) Aluminum sulfate AI ₂ (SO ₄ ) ₃ .16-18H ₂ O Solubility 27.8g / 100g (25 ℃) 43.9g / 100g (100 ℃) Ferric sulfate Fe ₃ (SO ₄ ) ₃ .9H ₂ O Pink, single crystal

Such chemical treatment enables the processing having a special effect with a higher added value than the erosion processing simply applied to the fabric. In addition, the method can be further modified by various combinations as shown below.

① After dyeing or printing yarns, the process of etching is performed.

② After dyeing process, dye or print.

③ Invent the erosion arc containing the dye for chemical-resistant textile, and express the thick pattern due to the short-circuit elution during weaving after the processing.

④ Possibility of dyeing Dyeing, dyeing, acid resistance and reducing resistance, color development and dyeing process and dyeing.

* Erosion Processing Process

The main process of erosion processing is as follows.

end. Main Agents Used in Eating Process and Their Effects

Examples of basic drugs used in the erosion process are as follows.

ㆍ Eating Agent

ㆍ Acid resistance inhibitor

ㆍ Overdrying preventive and deodorant

Penetrant

Defoamer

(1) corrosion inhibitor

The erosion agent is the main agent of the erosion process, and the main ones are aluminum sulfate, sodium acid sulfate and ferric sulfate, and in the case of polyester / cotton or rayon, the effect of corrosion is ferric sulfate> sodium acid sulfate> aluminum sulfate. Therefore, while the former two are effective for the purpose of erosion, when used in excess, not only yellowing the polyester fiber but also in the extreme case destroys the polyester fiber. Of course, this tendency varies depending on the thickness of the dough and the heating conditions, so it is not possible to say them collectively.

<Table 3> Corrosion Resistance Comparison of Various Eating Agents

<Evaluation>

◎: good corrosion resistance

○: slightly good corrosion resistance

△: poor corrosion resistance

×: yellowed polyester yellowing

*: Polyester is destroyed.

(2) Applied corrosion treatment

All of the aqueous solutions of the fermenting agents are acidic and have a lower acidity than sulfuric acid, but are very strong acids. Therefore, the application preparation requires acid resistance (acidity of 50 g / 1 (aqueous solution) is 3.3 for ferric sulfate and about 0.8 for ferric sulfate. to be)

Generally, natural rubbers have good acid resistance, but they may thicken or gel under strong acids, so the amount of the rubbers needs to be adjusted.

On the other hand, except for some examples, the synthetic inhibitors and the starch-based additives have low acid resistance, and the viscosity decreases significantly with the addition of an acid. In this sense, Locust beangum is generally good, and etherification is particularly suitable. In addition, the hydroxyketyl cellulose type is excellent in viscosity in the synthetic binder system. In particular, the erosion process needs to be easily removed from the erosion part because it hydrolyzes the cellulose fibers to an acid, and needs to have a small amount of solids and good deodorization.

One that requires attention in terms of viscosity is the change over time for strong acids. In this case, there are two main types of change over time. On the other hand, as gelation progresses and the titration of the edge is impossible, the viscosity decreases, and in extreme cases, it may splatter. Therefore, tests should be conducted in advance to select those that can avoid this situation.

(3) Other additives

In the process of erosion, the above-mentioned edible agents and agents are the most important drugs, but since they are not sufficient in actual processing, they need drugs or penetrants that prevent overdrying and promote deprotection, and also bubbles in neutrophils that cause erosion stains. Antifoam is needed to remove it. Since the dyes used for processing are complicated combinations of fibers, it is important to infiltrate the fertilizer evenly to short fibers, and it is important to keep in mind that this is different from general printing. There is a need for assisting penetrants to achieve that goal. However, it is necessary to select one that has a strong action of removing the decomposed carbide while having not only simple penetration but also emulsification.

In the actual processing, it is completely overdried in the drying process, and if it is treated with no moisture at all after the erosion treatment, it is often difficult to remove the decomposition products and carbides of cellulose. The reason for this is that excessive decomposition of cellulose is caused by the erosion treatment, and carbonization rapidly progresses, so that the cellulose becomes black and adheres firmly around the polyester. Therefore, it is good to emulsify it by adding some glycerides or PEG. Furthermore, if there are bubbles in the arc, it is difficult for the arc to attach uniformly to each short fiber, which causes corrosion stains. Therefore, an acid-resistant antifoaming agent is required to prevent this.

(4) Specific Example

In the above, the role of various drugs used in the erecting process is explained, but the amount of these drugs is determined according to the type of dough, the processing equipment, and the application method of the process.

Table 4 Example of Prescription

end. Erosion Processing (Heat Treatment)

Heating is carried out for erosion, but there are dry heat treatment and HT steaming. If you only require erosion, dry heat treatment is better for glyph and the effect of corrosion. Conditionally, depending on the thickness and texture of the dough, it is preferable that the corrosion of the polyester fiber in the range not yellowing is about 170-180 ° C / 1 minute.

However, in the case of polyester / triacetate, triacetate's corrosion resistance is very poor compared to cotton or rayon. So, ferric sulfate (100 g / kg), which is a strong corrosion agent, is used for 1-2 minutes at 190 ° C. It costs.

I. Etching Machine

For the effective implementation of the present invention, the machine of FIGS. 1 to 2 is used to enable efficient processing.

In other words, the erecting machine used in the practice of the present invention is partly stamped into the container (2) containing the sikyeoteul (1), a fiber combination, an anti-drying agent, an anti-drying agent and a defoamer, an antifoaming agent (2) The roller (3) is installed to pass the surface of the roller blade (3) for the partial blade, the combination of the fiber combination to insert the blade, and the portion of the blade passed through the heater (4) (4a) to complete the expression, winding In this process, the winding process is concentrated on a single machine to achieve effective erosion processing.

The present invention enables the production of new developments by the erosion processing in the yarn manufacturing process, rather than the erosion processing in the conventional textile processing process. In addition, after the dyeing or printing of yarns It is applied to the method or dyeing or printing after the processing of erosion, incubates the erosion arc containing fuel for chemical fiber, and expresses the thick pattern during weaving after the processing of erosion. It has the effect of being able to perform erosion processing and printing.

Claims (3)

It is a heterogeneous fiber combination (combination of vegetable fiber and synthetic fiber) with different chemical resistance, which combines polyester fiber and cellulose fiber (cotton, rayon, acetate, etc.) to make yarn and generates sulfuric acid by heating. Method of producing a partial erectile fabric, characterized in that it is heat-treated at 170-190 ℃ for 1-2 minutes by partially indenting the fiber combination, such as acid-resistant inhibitors, anti-drying agents and de-detergents, penetrants, antifoaming agent as the agent delete delete