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Production method of PLA (polylactic acid) differential shrinkage composite fiber

A production method and composite fiber technology, applied in fiber processing, stretch spinning, spinneret assemblies, etc., can solve problems such as limited technical capabilities, not many polylactic acid different shrinkage yarn technology methods, and obstacles to effective promotion of products , to achieve the effect of preventing sudden cooling, facilitating promotion, and comfortable hand feeling

Inactive Publication Date: 2019-07-26
BEIJING CHONGLEE MACHINERY ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there are not many technical methods for producing polylactic acid different shrinkage yarns in China, and the technical capabilities are still very limited. The shrinkage stability of the produced polylactic acid different shrinkage yarns is low, which hinders the effective promotion of products.

Method used

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  • Production method of PLA (polylactic acid) differential shrinkage composite fiber
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  • Production method of PLA (polylactic acid) differential shrinkage composite fiber

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Embodiment Construction

[0049]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0050] First, the embodiment of the present invention discloses a production device of PLA polylactic acid different shrinkage composite fiber.

[0051] figure 1 It is a structural schematic diagram of a production device of a PLA polylactic acid different shrinkage composite fiber according to an embodiment of the present invention, see

[0052] figure 1 , the device includes a drying system 1, a screw extruder 2, a spinning assembly 3, a suction device 4, a...

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Abstract

The invention relates to a production method of a PLA (polylactic acid) differential shrinkage composite fiber. The production method comprises: drying a polylactic acid material; melt-compressing thedried polylactic acid material in a screw extruder, feeding the melt-compressed polylactic acid material into a spinning component, ejecting a melt jet strand via the spinning component, wherein themelt jet strand includes an FDY (fully drawn yarn) part strand and a POY (pre-oriented yarn) part strand independent of each other, cooling the two strands with a side blowing device, an oiling deviceand a passage, drafting the DFY part strand via two pairs of hot roller units to ensure finish quality of the FDY part strand, feeding the FDY part strand drafted by the two pairs of hot roller unitsand the POY part strand drafted via two guide discs into a main interlacer, interlacing, combining, connecting, and winding with a winder to obtain spinning cake. The production method helps effectively popularize the PLA differential shrinkage composite fiber.

Description

technical field [0001] The invention belongs to the technical field of textile chemical fiber production, and in particular relates to a production method of PLA polylactic acid different shrinkage composite fiber. Background technique [0002] Polylactic acid (English full name: polylactic acid, referred to as PLA) fiber, the raw material polylactic acid used comes from plants, non-fossil fuels, the fiber is naturally degradable, and has a silk-like luster and feel, and has a certain water absorption. Very good fiber material with great development potential. Polylactic acid different-shrinkage fiber is composed of two kinds of silk with different shrinkage degrees. The fabric has a good hand feeling. It is a real intelligent multi-functional fiber with more abundant application fields. [0003] At present, there are not many technical methods for producing polylactic acid different shrinkage yarns in China, and the technical capabilities are still very limited. The shrink...

Claims

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Application Information

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IPC IPC(8): D02G3/02D01D5/088D01D5/16D01D10/02D01D4/06D01D1/00
CPCD01D1/00D01D4/06D01D5/088D01D5/16D01D10/02D02G3/02D10B2331/04
Inventor 张红亮唐志萍宁宇魏明瑞孔维嘉曹新荣冯婷冯晓宇王慧德
Owner BEIJING CHONGLEE MACHINERY ENG
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