KR100522910B1 - Manufacturing method of polyester flammable fabric with excellent refreshing feeling - Google Patents

Abstract

The present invention relates to a manufacturing method of a special combustible work having a natural feel in the shape of the yarn in the longitudinal direction as well as having a natural feel of the surface feel and two-tone effect excellent in the refreshing feeling, in particular to improve the focusing of the yarn The present invention relates to a method of manufacturing a polyester false twisted yarn which can be directly woven without undergoing a twisting process.

Combination of cationic chlorinated unstretched yarn (CD) and ordinary polyester filament highly oriented unstretched yarn (SD) allows the unsealed edge to be completely fused and the seaside edge is softly fused to form a yarn in the longitudinal direction. It retained the half as it was, but the sea smoked part became soft fusion, so we made a specially processed yarn that can be weaved without going through the twisting process and has excellent refreshing feeling. In addition, by using a cationic chlorinated unstretched yarn, a two-tone effect of light and shade in the case of dyeing using a disperse dye and a two-tone effect of the dyed portion and the undyed portion can be obtained.

Description

Manufacturing method of polyester flammable fabric with excellent refreshing feeling

The present invention relates to a manufacturing method of a special combustible processed yarn having excellent refreshing feel, not only having a surface feel and a two-tone natural color, but also having naturalness by the shape plate in the direction of the yarn length. The present invention relates to a method for producing a polyester combustible fabric that can be improved and directly woven without undergoing a twisting process.

In the processing of polyester fiber, the production of unsealed yarns in which unsealed edges (non-crimped portions) and seamed edges (crimped portions) are alternately present in the yarn length direction is a known technique, and Korean Patent Publication No. 1023, No. 1293 et al. In Patent Publication No. 1023, in order to improve the fact that the crimped portion and the non-crimped portion, which are disadvantages of the processing yarn, appear at regular intervals and thus cannot obtain a natural surface feel, the speed and twisting speed of the filament acting on the filament in the belt type combustor By controlling with a flammable roller, the degree of expression of the crimped and non-critical sections was not constant. However, when the crimped and non-crimped portions of the knitted fabric are dyed, they show a light and dark color tone. However, these tones are due to the morphology of the crimp and non-crimped portions in the direction of the length of the crimp. It is different from the two-tone effect. In addition, the processing yarn manufactured by the above method is natural, but the surface touch with a refreshing feeling can not be expected and workability in the weaving process is lowered if the yarn is not subjected to the twisting process due to the deterioration in the focusing property of the crimping unit.

The object of the present invention is to solve the problems of the conventional non-sea yarn as described above, excellent in the refreshing feel and excellent weaving without going through the twisting process as well as due to the naturalness and dyeing difference due to the shape of the yarn in the longitudinal direction It is to manufacture specially processed yarn that can show two-tone effect.

In order to achieve the above object, in the present invention, two kinds of polyester multifilaments having different dyeing properties were combined to prepare a false twisted yarn in a belt twist type combustor. One of the two dyes with different dyeability is ordinary polyester (hereinafter referred to as "SD") and the other yarn is a polyester copolymerized with a metal sulfonate group component and polyethylene glycol having a high molecular weight (hereinafter referred to as "CD"). Is).

When two yarns are mixed, dyeing with disperse dyes due to the difference in dyeability between SD and CD gives a two-tone effect (Non: CD, Dam: SD). The two-tone effect in which the part SD is mixed will appear.

The unsealed yarns are alternately present in the yarn length direction with the unsealed portion containing the twist in the same direction as the twisted direction and the seamed portion containing the twist in the opposite direction to the twisted direction. Due to the difference in the thickness or shape of the sea smoke and the sea smoke, the naturalness is expressed in the knitted fabric, but the workability in the weaving process is deteriorated unless the yarn is subjected to the twisting process due to the lack of focusability of the sea smoke. This problem can be solved by soft fusion of the sea smoke, but soft fusion of the sea smoke increases the focus of the sea smoke while leaving the shape plate with the unsealed smoke. In addition, due to the soft fusion of the maritime part is a refreshing feeling is excellent.

The melting point (Tm) of the CD is about 10 ℃ lower than the SD can be fused at a low temperature, but deteriorated near 240 ℃, the combustion temperature of the general unburned yarn is impossible to operate. The maximum temperature at which deterioration does not occur when CD is supplied alone to produce unsealed twisted yarn is about 220 ° C, depending on the processing conditions such as CD fineness, combustible water (T / M) and draw ratio. However, when manufacturing unsealed twisted yarn by combining SD and CD, CD / SD fineness ratio, combustible water (T / M), and flammable temperature are important factors for fusion and operation since SD fusion does not occur at such temperatures.

The key factors in manufacturing unsealed yarn are low draw ratios of 80 to 95% of general draw ratio (material yarn fineness / processed fineness), high processing temperature, high tensile strength to flammable tension, and low belt crossing angle. This is a known fact, and is introduced in Korean Patent Publication Nos. 1023 and 1293. Here, the low belt crossing angle acts to reduce the deterioration tension by adjusting the speed ratio of the discharge component acting on the yarn in the combustible belt and the rate of the combustible component. It is necessary to increase the combustible water (T / M) so that it can be set higher than the belt crossing angle of ordinary non-sea yarn. In other words, when double-processing SD and CD, the CD / SD fineness ratio (T / M) is closely related to each other, which plays a decisive role in operation, degree of fusion, and refreshment.

Experiments show that the higher the CD / SD fineness ratio, the more sensitive it is to heat. However, if the belt crossing angle is increased to increase the number of combustible water (T / M), the sea tension increases and the unsealed edge is reduced (decreased fusion rate). When the CD / SD fineness ratio is 1.45, the maximum belt crossing angle with a certain degree of unsealed edges (fusion rate: 31%) is 105 °, and the combustible water (T / M) is about 3400 TPM. .

Soft water (TPM) = 1337 × CD / SD fineness ratio + 1485, except 0.49 ≤ CD / SD fineness ratio ≤ 1.45

Refreshing surface touch is related to soft fusion of sea smoke, but when manufacturing non-sea fired yarn by SD alone without using CD, soft fusion of sea smoke is not expected even if heater temperature is raised above 240 ℃. Lowering the seam tension only decreases the length and frequency of the seam area (increased fusion rate), but does not achieve soft fusion. When two CDs and SDs are combined, melting points can be melted due to the melting point difference. The combustion temperature should be at least 230 ℃ and the CD / SD ratio should be at least 0.49. As the CD / SD fineness ratio increases, the fusion of the maritime part is well achieved, and the soft fusion of the maritime part enhances the concentration of the maritime part and enables weaving without going through the twisting process.

In the present invention, by combining the SD and the CD 2, the unsealed portion can be completely fused and the seamed portion is softly fused, and the half length of the yarn length direction is still retained while the seamed portion is soft fused and undergoes the twisting process. It was possible to produce a specially processed yarn that can be weaved and has an excellent refreshing feel. In addition, by using CD, dyes using a disperse dye were used to obtain a two-tone effect by light and a dye by a basic dye.

In the present invention, the fusion rate, the refreshing feeling and the naturalness in the fabric were measured as follows.

(1) Fusion rate (%) = length of unsealed edge

Length of sea edge + length of sea edge

(2) coolness and naturalness in fabrics

It is difficult to quantify by sensual evaluation, individual items were evaluated by 10 people

Subjective evaluation results were determined based on the following criteria.

◎: 9 or more people O: 6 to 8 people

△: 3 to 5 people ×: 2 or less

Hereinafter, the present invention will be described in detail with reference to Examples and Comparative Examples.

Example 1

123de / 36f with cationic salts and highly oriented unstretched yarns prepared by melt spinning a polyester polymer copolymerized with 2.28 wt% of 5-sodiumsulfodimethylisophthalate (DMS) and 1.1 wt% of polyethylene glytol having a molecular weight of 1000. Polyester filament highly oriented unstretched yarn 85de / 36f was combined and subjected to combustible processing according to the process of FIG. 1 to prepare a specially treated yarn. The first and second feed roller speeds are 350 and 500 mpm, the belt crossing angle is 105 degrees, and the heater temperature is 235 ° C. The above-mentioned specially processed yarn was subjected to normal long-fiber weaving and alkali weight reduction, followed by dyeing with disperse dyes and basic dyes, respectively.

Example 2

Conventional polyester filament highly oriented undrawn yarn is 123de / 36f,

It carried out similarly to Example 1 except the belt crossing angle is 100 degrees and the temperature of a heater is 240 degreeC.

Example 3

It carried out similarly to Example 1 except the normal polyester filament highly oriented unstretched yarn was 252de / 48f, the belt crossing angle was 95 degrees, and the temperature of the heater was 240 degreeC.

Comparative Example 1

It carried out similarly to Example 1 except the belt crossing angle is 100 degrees.

Comparative Example 2

It carried out similarly to Example 1 except the belt crossing angle of 110 degrees.

Comparative Example 3

It carried out similarly to Example 1 except having used normal polyester filament high orientation unstretched yarn 85de / 36f and 123de / 36f, and having a belt crossing angle of 95 degrees and a heater temperature of 240 degreeC.

Comparative Example 4

The same procedure as in Example 1 was carried out except that the cationic salty highly oriented undrawn yarn was 252de / 48f and the belt crossing angle was 120 °.

Table 1 shows the results of Examples and Comparative Examples.

In the case of Examples 1 to 3, both the refreshing feeling, the naturalness and the workability in the fabric are excellent, and in particular, the higher the CD / SD fineness ratio, the softer fusion of the seaweed is formed. Processing is possible only when the burnable water (T / M) is high, but when the CD / SD fineness ratio is 1.45, the appropriate soft water is 3400 TPM. It is weak to heat and processing is impossible, and as shown in Comparative Example 2, when the belt crossing angle is increased to increase the number of combustible waters (T / M), the unsealed portion is reduced by increasing the decomposed tension. When the CD / SD fineness ratio is 2.96, as in Comparative Example 4, it becomes weak to heat, making it impossible to process. When non-twisted polyester is used as in Comparative Example 3, it is difficult to form fusion of the smoked part, and thus lack of focusing and cooling feeling. Done. Summarizing the above results, the following simple relationship is obtained from CD / SD fineness ratio and burnable water (T / M).

Soft water (TPM) = 1337 × CD / SD fineness ratio + 1485, except 0.49 ≤ CD / SD fineness ratio ≤ 1.45

As described above, according to the present invention, by combining the SD and the CD, the unsealed edge is completely fused and the seamed edge is softly fused, and the seam length is still retained while the seabed is softly fused. Therefore, weaving is possible without going through the twisting process, and we can manufacture special processed yarn with excellent refreshing feeling. In addition, by using a CD, a two-tone effect of light and shade in the case of dyeing using a disperse dye and a two-tone effect in the dye and undyed part can be obtained.

1 is a front view showing a schematic process diagram of the present invention

<Explanation of symbols for main parts of drawing>

1: Supply thread of ordinary polyester filament highly oriented unstretched yarn

2: supply thread of cationic salt island polyester filament highly oriented unstretched yarn

3: first feed roller 4: second feed roller

5: heater 6: flammable device

7: winding device

Claims (2)

In the production of flammable fabrics having alternating seam and unsealed sections by combining two cationic salty undrawn yarn (CD) and ordinary polyester filament highly oriented undrawn yarn (SD), the unsealed smoked parts can be completely fused. Soft fusion is achieved in the seaweed section is the manufacturing method of the polyester twisted yarn characterized in that the seamyeon soft fusion while retaining the shape section of the yarn length as it is The method according to claim 1, wherein the fineness ratio and the number of combustibles between the cationic chlorinated non-drawn yarn and the normal polyester highly oriented undrawn yarn satisfy the following relational expressions. Soft water (TPM) = 1337 × CD / SD fineness ratio + 1485, except 0.49 ≤ CD / SD fineness ratio ≤ 1.45