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Flame-retardant lyocell fiber and preparation method thereof

A fiber and raw material technology, applied in the field of flame retardant lyocell fiber and its preparation, can solve the problems of lyocell fiber being prone to combustion and the flame retardant performance needs to be improved, and achieves low volatility, improved flame retardant performance, dissolved simple effect

Active Publication Date: 2021-02-05
宁波丹盈科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Regarding the related technologies mentioned above, the inventor believes that the obtained lyocell fiber is affected by its own material. In the case of an open flame, the lyocell fiber is easy to burn, and the flame retardancy needs to be improved.

Method used

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  • Flame-retardant lyocell fiber and preparation method thereof
  • Flame-retardant lyocell fiber and preparation method thereof
  • Flame-retardant lyocell fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] A flame-retardant lyocell fiber, formed by mixing and spinning raw materials containing the following parts by weight: 60 parts of N-methylmorpholine oxide with a mass fraction of 50%; 40 parts of dimethylacetamide with a mass fraction of 50% 6.5 parts of bamboo pulp; 1.5 parts of starch; 1.5 parts of phosphoric acid; 1.5 parts of urea; 1.5 parts of melamine; 1.5 parts of polyphosphate amine;

[0058] The manufacture method of flame-retardant lyocell fiber, comprises the following steps:

[0059] (1) the N-methylmorpholine oxide that is 50% by mass fraction and the dimethylacetamide that mass fraction is 50% are that 97KPa and mixing temperature are under the condition of 110 ℃ in absolute vacuum, with 600r / min Stirring speed and negative pressure for 3.5h to obtain a composite organic solvent;

[0060] (2) Add bamboo pulp to the composite organic solvent, and under the conditions of vacuum degree of 97KPa and mixing temperature of 110°C, stir at a stirring speed of 60...

Embodiment 2-5

[0070] The difference from Example 1 is that the components of the raw materials and their corresponding parts by weight are different, as shown in Table 2.

[0071] Each raw material and parts by weight thereof in table 2 embodiment 1-5

[0072]

[0073]

Embodiment 6

[0074] Embodiment 6: The difference from Example 1 is that dimethylacetamide with a mass fraction of 50% is not included, and the weight of N-methylmorpholine oxide with a mass fraction of 50% is 100 g.

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Abstract

The invention relates to the technical field of garment materials, and particularly discloses a flame-retardant lyocell fiber and a preparation method thereof. The flame-retardant lyocell fiber is prepared by blending and spinning the following raw materials in parts by weight: 20-80 parts of N-methyl morpholine oxide with the mass fraction of 50%; 5-8 parts of bamboo pulp; 1-2 parts of starch; 1-2 parts of phosphoric acid; and 1-2 parts of urea. The preparation method comprises the following steps: 1, preparing a composite organic solvent; 2, preparing a lyocell fiber spinning solution stocksolution; 3, preparing a flame-retardant lyocell fiber spinning solution stock solution; 4, preparing a flame-retardant lyocell fiber spinning solution; 5, extruding precursors through a screw extruder and a spinneret plate, and enabling the precursors to enter a coagulating bath to obtain flame-retardant lyocell fibers; 6, performing alcohol washing on the flame-retardant lyocell fibers; 7, washing the flame-retardant lyocell fibers with water; 8, oiling the flame-retardant lyocell fibers; and 9, drying the flame-retardant lyocell fibers. The flame-retardant lyocell fibers have the advantagethat the flame-retardant property of the lyocell fibers is improved.

Description

technical field [0001] The present application relates to the technical field of clothing fabrics, in particular to a flame-retardant lyocell fiber and a preparation method thereof. Background technique [0002] Lyocell fiber, commonly known as "velvet", is a green fiber spun from pulp formed by crushing renewable bamboo and wood. It came out in the mid-1990s and is known as nearly half The most valuable product in the history of man-made fibers for centuries. Combining various excellent properties of natural fibers and synthetic fibers, it not only has the comfort, good hand feeling, and easy dyeing characteristics of natural fiber cotton, but also has the environmental protection advantages that traditional viscose fibers do not have. [0003] In the related technology, the lyocell fiber is mainly mixed with ionic solvent to obtain lyocell spinning stock solution by mixing the pulp formed after smashing bamboo, wood, etc., and then spinning the lyocell spinning stock solu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/00D01F1/07D01F1/10
CPCD01F2/00D01F1/07D01F1/10Y02P70/62
Inventor 吴珏
Owner 宁波丹盈科技有限公司
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