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Drawn yarn package and production method therefor

A manufacturing method and package yarn technology, applied in textiles and papermaking, conveying filamentous materials, single-component polyester artificial filaments, etc., can solve the problem of not revealing and enlightening, not achieving edge height removal or poor unwinding Problems, side height and pressure line are not recorded and inspired, to achieve the effect of improving dyeing quality

Inactive Publication Date: 2003-09-03
ASAHI KASEI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is effective for eliminating swelling and doffing, but it does not achieve the effect of eliminating side height or poor unwinding properties for drawn yarn that shrinks in the package yarn that changes with time such as PTT fiber
In addition, there are no records and inspirations about the side height and crimping problems caused by the heat of the cheese during winding.
[0027] Therefore, in the prior arts (D) to (G), some proposals related to the direct spinning and drawing method are disclosed, however, regarding the coil quality that is industrially practical, and about the PTT drawn yarn package The subject of high-speed relaxation and its solution, but there is no revelation and inspiration at all

Method used

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  • Drawn yarn package and production method therefor
  • Drawn yarn package and production method therefor
  • Drawn yarn package and production method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0175] [Examples 1-5, Comparative Examples 1 and 2]

[0176] In this example, the effect of stretching tension will be described.

[0177] PTT powder containing 0.4 wt% titanium dioxide with an intrinsic viscosity of 0.91 was used as Figure 6 The spinning machine is shown together with the drawer and winder, for spinning-continuous drawing.

[0178] When winding, make the winding speed and the final heat treatment godet ( Figure 6 The speed ratio in 11) is different as shown in Table 1, and the PTT drawn yarn of 84dtex / 36 filament is produced.

[0179] The spinning conditions in the present examples and comparative examples are as follows.

[0180] (spinning conditions)

[0181] Powder drying temperature and achieved moisture content: 110°C, 25ppm

[0182] Extruder temperature: 260°C

[0183] Spin assembly temperature: 265°C

[0184] Spinning sleeve aperture: 0.40mm

[0185] Polymer discharge amount: set according to various conditions so that the fineness of the dra...

Embodiment 7 and 8

[0220] [Examples 7 and 8, Comparative Examples 2 and 3]

[0221] In this example, the winding speed V and final heat treatment godet speed R 2 Ratio V / R 2 effect is explained.

[0222] The winding speed is as image 3 Except for the changes shown, the same procedure as in Example 3 was carried out. The results are shown in Table 3.

[0223] As can be seen from Table 3, if the final heat treatment godet roller speed R 2 If the ratio to the winding speed V is within the range of the present invention, it can be judged that a good drawn yarn package and a fabric with excellent quality can be obtained.

[0224] Example 7

Embodiment 9 and 10

[0225] [Examples 9 and 10, Comparative Example 4]

[0226] In this example, the effect of changing the twill angle according to the winding diameter will be described.

[0227] When winding, it carried out similarly to Example 1 except having changed the diagonal angle according to the winding diameter.

[0228] The variation pattern of the twill angle adopts Figure 8 b, c and d shown in. The results are shown in Table 4.

[0229] As can be clearly seen from Table 4, if the change pattern of the twill angle is in the case of b and c within the scope of the present invention (Examples 9 and 10), a good drawn yarn package and an excellent solution can be obtained. Comfortable cheese.

[0230] On the other hand, if Figure 8 As shown in the pattern d in the figure, when the twill angle is constant (comparative example 4), it becomes a package with a high side, and becomes an article with poor high-speed unwinding properties.

[0231] Example 9

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Abstract

The present invention provides a package of poly(trimethylene terephthalate) drawn yarn obtained by a direct spin-draw process of poly(trimethylene terephthalate), having an industrially practical winding amount and excellent in unwindability during high speed unwinding after storage over a long period of time, and a method for producing the same. A fabric obtained by weaving or knitting using a package of poly(trimethylene terephthalate) drawn yarn of the invention has good quality without defects such as streaky defects and a tight yarn.

Description

technical field [0001] The invention relates to a polydimethylene diamine terephthalate drawn yarn package obtained by a direct spinning drawing method and a manufacturing method thereof. technical background [0002] Polyethylene terephthalate (hereinafter referred to as PET) fiber is the most suitable synthetic fiber for clothing, and it is mass-produced in the world and has become a major industry. [0003] Polydimethylene diamine terephthalate (hereinafter referred to as PTT) fiber by (A) J.PolymerScience: Polymer Physics Edition, Vol.14, p263-274 (1976), (B) Chemical Fibers International, Vol.45, p110-111, April (1995), (C) Chemical Fibers International, Vol.47, p72, February (1997) and (D) WO99 / 27168, etc. are known prior art. [0004] In the prior arts (A) and (B), the basic characteristics of the stress-elongation characteristics of PTT fibers are described. The initial modulus of PTT fibers is small, and compared with nylon fibers or PET fibers, the elastic recover...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H55/00D01F6/62D02J1/22
CPCB65H2701/31D02J1/22B65H55/00D01F6/62Y10T428/2913Y10T428/1369Y10T428/2969
Inventor 小柳正阿部孝雄山下明
Owner ASAHI KASEI KK