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Method for producing fine denier acrylic tops

A production method and fine denier technology, applied in the direction of fiber bundles into fiber sliver/yarn, textiles and papermaking, drafting equipment, etc., can solve the difficulty of carding in the needle carding process, the difficulty of post-spinning, the length of fibers and the inconsistency of broken strips Evenness is not easy to control and other problems, to achieve the effect of low failure rate in the breaking process, meet the requirements of production equipment, and good dry quality of tops

Active Publication Date: 2011-04-20
PETROCHINA CO LTD
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AI Technical Summary

Problems solved by technology

[0011] For fine-denier acrylic fiber tow, there are two control difficulties in the ordinary production process: one is that the fiber is easy to wind around the roll, and the tow is easy to break in the breaking process, and the fiber length and the unevenness of the breaking strip are difficult to control, which makes the subsequent Spinning becomes quite difficult; secondly, it is difficult to card in the needle carding process, the fibers are seriously damaged, there are many wool particles and flakes, and the top unevenness is high

Method used

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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  • Method for producing fine denier acrylic tops
  • Method for producing fine denier acrylic tops
  • Method for producing fine denier acrylic tops

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Embodiment Construction

[0062] The stretching machine is composed of a wire guiding mechanism, a thermal stretching mechanism, a breaking mechanism, a steaming mechanism, a crimping mechanism, a dust collection mechanism, a cooling mechanism, a pressurizing mechanism and a transmission mechanism, etc. The total stretching ratio for producing fine-denier acrylic tops is 6.05~6.27 is suitable. The wire guide mechanism includes high-altitude wire guide frame and vertical wire guide frame. Zone 11, control span ≥ 18cm. The thermal stretching mechanism includes a feed roller 1 and a thermal stretching zone 12, and the thermal stretching zone is composed of a rear stretching roller 2, a front stretching roller 4, and a heating plate 3. The drafting ratio of the thermal stretching zone is 1.30 times, and the temperature of the heating plate 3 is It is adjusted by the button and controlled at 135°C. The breaking mechanism is composed of pre-breaking roller 5, main breaking roller 6, re-cutting roller 7, an...

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Abstract

The invention relates to a method for producing fine denier acrylic tops. 0.44-1.11dtex fine denier acrylic tows are taken as raw materials, and the method comprises the following steps of: manufacturing the tops by using a breaking machine, wherein the total draw ratio is 6.05-6.27, the space of rebreaking areas is 5mm greater than the conventional space, the pressure of a pressing plate in a crimping box is 1-2 buckles greater than the conventional pressure, and the steaming pressure is 0.15-0.3MPa; and manufacturing the tops by using a gilling machine, wherein the needle plate number of a comb box is NO.6-8, the draft multiple in a coiling area is 1.15-1.3, the draft multiple in a feeding area of the comb box is 0.98, the main draft multiple is 6-8, and the front roller space is 35-45mm. The quality indexes of the fine denier acrylic tops produced by the method meet the qualified product standard, and partial indexes meet the high-class product standard.

Description

technical field [0001] The invention relates to a production process for fine-denier acrylic fiber tow slivers, which is used for producing fine-denier acrylic fiber tops. Background technique [0002] Based on "Synthetic Fiber Production Technology" and "Textile Materials Science", combined with production practice, the background technology is described as follows. [0003] 1 fine denier acrylic [0004] Usually, the denier of 0.44~1.3dtex is classified as fine denier acrylic fiber, and below 0.44dtex is superfine acrylic fiber. Fine-denier acrylic fiber is a micro-porous spinneret made by high-tech means. It is spun by changing the spinning and post-processing conditions. It is one of the main raw materials for imitating cashmere and silk. [0005] Fine-denier acrylic fibers are soft to the touch, high in strength, soft in luster, and twice as hygroscopic as ordinary acrylic fibers. They are used for spinning high-count yarns, producing underwear, sweatshirts, and silk-...

Claims

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Application Information

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IPC IPC(8): D01G1/08D01H5/02D02G1/00
Inventor 唐振波杨丽华孙惠斌邢宏斌曲彦书林向东尚印峰武学丽姜贵军徐燕杰王旭
Owner PETROCHINA CO LTD
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