KR100537245B1 - Process for preparing bulky polyester/poly(1,3-trimethylene) telephtalate mixed yarn - Google Patents

Abstract

Polyester / poly (1,3-trimethylene) characterized in that the poly (1,3-trimethylene) terephthalate yarn, the high shrink polyester yarn and the low shrink polyester yarn are interwoven with an air entanglement method. It is a manufacturing method of terephthalate blended yarn.

The horn filament manufactured by the present invention has good bulkiness and feel, and shows dichroism as a light and shade difference when dyed.

Description

Process for preparing bulky polyester / poly (1,3-trimethylene) telephtalate mixed yarn}

The present invention relates to polyester / poly (1,3-trimethylene) terephthalate intermixed yarns, and more particularly, two kinds of polyester yarns having different physical properties and poly (1,3-trimethylene) terephthalate yarns. It is related to the manufacturing method of the blended yarn, which is excellent in the bulky property by the air-entangled blend and appears the difference in color when dyed.

Conventional polyester composite yarns are manufactured by air entanglement with polyester non-uniformly stretched yarns and false twisted yarns, and have sublime properties, dichroisms, etc., but have a disadvantage in that the surface effects of visual and touch are monotonous.

Polyester / nylon blend yarns also have the disadvantage that their fastness is poor.

For this reason, there is an increasing demand for a new polyester blended yarn having excellent color tone and texture and excellent fastness when applied to woven and knitted fabrics, but it has not been developed a polyester blended yarn that can satisfy this.

The present invention is to solve the above problems to provide a method for producing a polyester / poly (1,3-trimethylene) terephthalate blended yarn that can express excellent bulkiness, tactile and surface effects in the manufacture of knitted fabrics It is purpose.

Hereinafter, the present invention will be described in detail.

Poly (1,3-trimethylene) terephthalate used in the present invention can be dyed with disperse dyes like polyester fiber, especially it is concentrated even at normal pressure of 100 ℃, has vivid color and high fastness, elasticity and feel Has excellent properties.

Poly (1,3-trimethylene) terephthalate yarn having such characteristics and low shrinkage polyester yarn having a non-shrinkage shrinkage of 5% or less and high shrinkage polyester yarn having a non-aqueous shrinkage rate of 30% or more and 50% or less using an ordinary twisted drawing method Mixed with

In the present invention, it is preferable to use a low shrinkage polyester yarn having a fineness of 50 to 100 denier and a high shrinkage polyester yarn having a fineness of 50 denier or less.

The fineness of the low shrinkage yarn is smaller than that of the high shrinkage yarn, and the larger the fineness of the low shrinkage yarn is, the more advantageous it is to improve the bulkiness.

Similarly, the larger the shrinkage difference between the high and low shrinkage polyester yarns, the larger the bulkiness can be. However, if the shrinkage rate of the high shrinkage polyester yarn exceeds 50%, the physical properties of the blended yarn are weakened, so that the shrinkage rate of the high shrinkage polyester yarn is increased to 30 to 50%. It is preferable to set.

The blended yarn prepared according to the present invention exhibits surface curvature between poly (1,3-trimethylene) terephthalate yarn, polyester high-shrink yarn and low-shrink yarn during the manufacture of knitted fabrics. With its unique characteristics such as elasticity, touch and vivid color, it has excellent texture and feel such as bulkyness and dichroic, so it can be used for winter wear, jacket and suit.

Example 1

Polyester high shrink yarn with 30 deniers and 40% non-aqueous shrinkage, polyester low shrink yarns with 100 deniers and 5% non-aqueous shrinkage, and poly (1,3-trimethylene) terephthalate yarn with 120 deniers Is mixed with air pressure of 2.4 kgf / cm 2 and then wound up.

The horned yarn thus prepared was kneaded into interlock tissue in a circular gauge of 24 gauge and 84 feeder, and then subjected to salt processing.

Table 1 shows the results of measuring the bulkiness, surface dichroism, and surface feel of the manufactured paper.

Example 2

Prepared in the same manner as in Example 1, but using a poly (1,3- trimethylene) terephthalate yarn having a fineness of 75 denier.

Comparative Example 1

Prepared in the same manner as in Example 1, but instead of poly (1,3-trimethylene) terephthalate yarn polyester yarn having a fineness of 75 denier was used.

<Table 1>

Bulky Fabric surface dichroic Fabric surface feel  Example 1 Great Great Great  Example 2 Great Great Great  Comparative Example 1 Great Bad usually

The polyester / poly (1,3-trimethylene) terephthalate blend fiber manufactured according to the present invention has excellent touch and bulkiness, and has a dichroic color when dyed. Can be.

Claims (2)

Excellent bulky polyester / poly (1,3-trimethylene) tere characterized by blending poly (1,3-trimethylene) terephthalate yarn, polyester high shrink yarn and polyester low shrink yarn by air entanglement method Method for preparing phthalate blended yarn. A poly (1,3-trimethylene) terephthalate yarn having a 120 denier degree of fineness, a low shrinkage polyester yarn having a specific water shrinkage of 5% or less and a fineness of 50 to 100 denier, and a nonaqueous shrinkage rate of 30% A method for producing a polyester / poly (1,3-trimethylene) terephthalate blend fiber having excellent bulkiness, characterized by using a highly shrinkable polyester yarn having a ˜50% and a fineness of 50 denier or less.