Nano water-repellent down production process

Abstract

The invention discloses a nano water-repellent down production process, and relates to the technical field of down production. The process comprises the following steps that S1, a down material is immersed in a pre-treatment liquid for pre-treatment at first; S2, a finishing agent is prepared, wherein the finishing agent is prepared from, by weight, 50-80 parts of nano silica, 10-20 parts of a dispersant, 30-40 parts of nano microcrystalline cellulose, 20-30 parts of fatty alcohol ether phosphate and 800-1,000 parts of water; S3, the down is added into a washing stirrer at first, and then water and the finishing agent are added for stirring and mixing; S4, the stirred down is rinsed with clear water 10 times; S5, the rinsed down is spin-dried and dewatered; S6, the dewatered down is put into a drying box for stirring and drying. The process has the advantage that the adhesion tightness of the nano silica and the nano microcrystalline cellulose to the surface of the down is improved.

Description

technical field [0001] The invention relates to the technical field of down production, in particular to a production process for nano water-repellent down. Background technique [0002] Down is a kind of animal protein fiber. There are tens of thousands of small triangular pores densely covered in the down ball-shaped fiber, which can shrink and expand with temperature changes, and has the function of temperature regulation. It can absorb the flowing heat from the human body and isolate the invasion of cold air from the outside. However, when the down encounters water, the water adheres to the fibers, reducing the pores between the fibers and shrinking the down, thereby greatly reducing the heat preservation and temperature regulation effect of the down. [0003] At present, the technology of applying nanometer water-repellent materials to the surface of down fibers enables down to obtain better water-repellent performance, and has solved the defect that down has a reduced ...

AI Technical Summary

Problems solved by technology

[0004] However, after the eiderdown is stirred and mixed with the aqueous solution of nanomaterials, it needs to be rinsed several times, so that the attached nanomaterials on the eiderdown are reduced, and the hydrophobicity of the eiderdown is reduced.

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