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Preparation method of non-fluorescence regenerated environmentally friendly short fiber

A short fiber, non-fluorescent technology, applied in the chemical characteristics of fibers, melt spinning, rayon manufacturing, etc., can solve problems such as harm to human health and environmental pollution, and achieve high stability, oil resource conservation, and long-term stability. Effect

Active Publication Date: 2015-09-23
HANGZHOU HUACHUANG IND
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Problems solved by technology

[0002] In the prior art, in order to improve the appearance color of short fiber products produced by recycled PET, a certain amount of additives, i.e. fluorescent whitening agents, are added in the production process. However, fluorescent whitening agents are a kind of chemical poison, which is the national The Classification of Occupational Hazard Factors issued by the State Administration of Work Safety clearly states that the use of
In addition, the staple fiber products added with this kind of additive will pollute the environment and endanger human health during use.

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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  • Preparation method of non-fluorescence regenerated environmentally friendly short fiber

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Embodiment 1

[0011] Embodiment 1: refer to figure 1 . A method for preparing non-fluorescent regenerated environmentally friendly short fibers, the main steps of which include: selecting regenerated PET raw materials containing color matching additives, drying-melt spinning-cooling and winding-drawing-curling-cutting, finishing, drying and shaping or After sorting, drying and shaping, cut off—package, among which

[0012] a) The color matching aid is formulated from ultraviolet shielding agent, brightener, light stabilizer and toner, the mass percentage of recycled PET raw materials is 98.9% to 99.79%, and the mass percentage of ultraviolet shielding agent is 0.1% to 0.5% , the mass percentage of the brightener is 0.05% to 0.3%, the mass percentage of the light stabilizer is 0.05% to 0.2%, and the mass percentage of the toner is 0.01% to 0.1%;

[0013] b) In the drying process: the drying vacuum degree of the recycled PET raw material is -0.1MPa, the drying temperature is 170 ° C ~ 200 °...

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Abstract

The present invention relates to a fluorescence-free regeneration environmental-protection short fiber preparation method, which comprises the following main steps: selecting a color matching auxiliary agent-containing regeneration PET raw material, and sequentially carrying out drying, melt spinning, cooling winding, drafting, coiling, finishing drying shaping after cutting or cutting after finishing drying shaping, and packaging, wherein the color matching auxiliary agent is obtained by blending an ultraviolet screening agent, a brightening agent, a light stabilizer and a toner. The preparation method has the following advantages that: characteristics of safety and environmental protection are provided, and the added color matching auxiliary agent has characteristics of no toxicity, no harm, no environment pollution and no damage on human body health during the preparation and use processes; high stability is provided, and the product preparation process and the process parameters are reasonably matched, such that the product has excellent color sense and long-term stability; and the product produced through the process can achieve or approach indicator requirements of primary short fibers, and can replace the primary short fibers so as to saving petroleum resources.

Description

technical field [0001] The invention relates to a preparation method of non-fluorescence regenerated environmental protection short fiber. Background technique [0002] In the prior art, in order to improve the appearance color of short fiber products produced by recycled PET, a certain amount of additives, i.e. fluorescent whitening agents, are added in the production process. However, fluorescent whitening agents are a kind of chemical poison, which is the national It is clearly stated in the "Classification Table of Occupational Hazard Factors" issued by the State Administration of Work Safety that they are not allowed to use. In addition, the staple fiber products added with this kind of additive will pollute the environment and endanger human health during use. Contents of the invention [0003] The object of the present invention is to provide a production method of non-fluorescent regenerated environmentally friendly short fibers in order to solve the deficiencies ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/92D01F1/10D01F1/04D01D5/08
Inventor 陈宝芳李君
Owner HANGZHOU HUACHUANG IND
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