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Manufacturing process of drawn anti-felting worsted yarn, drawn anti-felting worsted yarn and low speed drawing machine

A technology of worsted spinning and woolen yarn, which is applied in the direction of textiles and papermaking, and can solve problems such as hydraulic loss

Inactive Publication Date: 2005-06-22
徐沃教
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since there is no device for controlling the water pressure between the hydraulic cylinder and the compressor, the pressure generated by the compressor can be supplied to the hydraulic cylinder at one time, so it is impossible to manufacture a stretch with excellent shrinkage resistance by achieving low-speed stretching Stretch Yarn
During the relaxation step and subsequent steps for maintaining the stretched state, the hydraulic oil in the hydraulic cylinder may flow back into the compressor due to the restoring force of the wool fiber, resulting in hydraulic loss

Method used

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  • Manufacturing process of drawn anti-felting worsted yarn, drawn anti-felting worsted yarn and low speed drawing machine
  • Manufacturing process of drawn anti-felting worsted yarn, drawn anti-felting worsted yarn and low speed drawing machine
  • Manufacturing process of drawn anti-felting worsted yarn, drawn anti-felting worsted yarn and low speed drawing machine

Examples

Experimental program
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Effect test

preparation example Construction

[0037] Precursor preparation

[0038] First, worsted yarn used as a raw material used in the method of the present invention will be described.

[0039] The worsted wool yarn used in the present invention includes pure wool and wool blended yarn, but is not limited thereto. In particular, with the method of the present invention, high-quality fine-count worsted yarns can be produced from cheap medium-count or coarse-count worsted yarns, which has a cost advantage.

[0040] Since the spinning of worsted wool yarn in the present invention can be carried out by the spinning method of worsted wool yarn known in the art, and commercially available worsted wool yarn can be used in the present invention, the description about spinning of worsted wool yarn is omitted. detail.

[0041] It is not preferable to use a less twisted yarn as the worsted yarn stretched by the method of the present invention because slippage occurs during stretching due to insufficient bonding force and fr...

Embodiment 1

[0088] Wool fibers having a denier of 21.7 μm were spun to produce 1 / 40 Nm worsted wool yarn of 100% wool. After two-for-one twisting of the worsted wool yarn, twisting with S950 TPM and vacuum setting at 98°C.

[0089] The shaped worsted wool yarn was wound into a skein form having a size of 12 cm, and then loaded on a pair of draw rolls installed horizontally inside the pressure-resistant tank. After closing the pressure tank, the rolls were rotated for 5 minutes while a sufficient 2.0 g / l aqueous solution of sodium bisulfite was sprayed on the worsted wool.

[0090] Thereafter, after the pressure-resistant tank was evacuated to 70%, steam was supplied into the pressure-resistant tank to raise the internal temperature to 110°C. This temperature was maintained for 10 minutes to evenly retain the wool. The worsted woolen yarn was stretched slowly for 30 seconds to 300 seconds to 1.7 times its original length and relaxed by 15%.

[0091] The relaxed drawn yarn was set at 98°...

Embodiment 2～3

[0094] Two wool fibers having a denier of 20.5 μm were spun to produce worsted wool yarns each of 1 / 60 Nm. After two-for-one twisting of the worsted wool yarn, it was twisted with the S120 TPM. Subsequently, low-speed drawing of the worsted woolen yarn was carried out in the same manner as in Example 1. At this time, the elongation rate of the worsted wool yarn was 135% (Example 2) and 150% (Example 3), and the relaxation was performed at 0% (Example 2) and 5% (Example 3).

[0095] Determination of physical properties of drawn worsted wool yarn. The results are summarized in Table 1 below.

[0096] physical properties

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Abstract

Disclosed herein is a method for manufacturing a fine count non-shrinkable worsted yarn which comprises the steps of loading a worsted yarn in a hank form, spraying a reducing agent, temperature-elevating, low-speed drawing, relaxing, setting, and suddenly cooling and cleaning. Further disclosed are a non-shrinkable drawn worsted yarn manufactured by the method and a low-speed drawing machine for implementing the method.

Description

technical field [0001] The present invention relates to a method for producing a non-shrinkable drawn worsted yarn, a non-shrinkable drawn worsted yarn produced by the method, and a drawing machine used for carrying out the method. More specifically, the present invention relates to a method of artificially fibrilating worsted yarn by drawing the worsted yarn in the form of a roll at low speed and subsequently setting it, thereby imparting the stretched worsted yarn with Shrinkage resistance; non-shrinkable drawn worsted yarn produced by the method; and a low speed drawing machine for effectively carrying out the method. Background technique [0002] Wool fiber is considered to be the best quality fiber material due to its excellent softness, spinning properties, thermal insulation properties, moisture absorption properties, etc. However, the application of wool fibers to wool products has been limited due to the following problems of not meeting consumer needs. [0003] F...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02J1/22
CPCD02J1/22
Inventor 徐沃教金承振朴秀铉李大勳
Owner 徐沃教
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