Manufacturing method of static down flake and mixed down

Abstract

The invention relates to a manufacturing method of multi-layer composite static down flake and mixed down. The manufacturing method includes the steps that animal fibers and low melting point fibers are subjected to cotton blending, cotton carding and lapping, and a lower flake is manufactured; after the animal and plant fibers and the low melting point fibers are subjected to cotton blending, opening and lapping, a down fiber or other thermal insulation material, functional fiber, animal and plant fiber and low melting point fiber single product or a mixture is laid, then a middle flake is manufactured by air lay, and is laid on the lower flake; the animal fibers and low melting point fibers are subjected to cotton blending, cotton carding and lapping, and an upper flake is manufactured,and laid on the middle flake; and the lower flake, the middle flake and the upper flake are fused into one.

Description

technical field [0001] The invention relates to a method for manufacturing composite down flakes and mixed down, in particular to a multilayer composite static down flake and a manufacturing method thereof. [0002] technical background [0003] In the prior art, down is basically all derived from the wings of waterfowl such as geese and ducks, and down is long in the abdomen of animals such as geese and ducks, and becomes the fluff of reed flower shape, and the flakes are called feathers. The down described in the present application includes feather silk obtained by opening feathers. Down is a kind of animal protein fiber, which has a much better thermal insulation performance than vegetable cellulose. The down ball-shaped fiber is densely covered with thousands of small triangular pores, which can shrink and expand with temperature changes, and have a temperature-regulating function. The human body emits flowing hot air, which isolates the invasion of cold air from the ou...

AI Technical Summary

Problems solved by technology

In this manufacturing method, after material cutting, carding, molding, and hot-drying bonding, rolling must be performed while it is still hot, and the temperature of the oven must reach 180°C-200°C, which requires high temperature and consumes a lot of energy. ; Its combing into a web is one-way carding, and the product's vertical and horizontal tension ratio is too different (even up to more than 10:1), and finally it must be rolled while it is hot, and the rapid cooling and shaping process, and after rolling The product has to be pressed very thin, the bulkiness is poor, and the heat preservation rate is also greatly reduced.

[0011] Chinese patent document CN 101787619A discloses a three-layer composite static down flake, which is only bonded by hot melt, has poor stability, complicated process, and high energy consumption

[0012] This shows, there are many inconveniences and defectives in structure, manufacturing method in above-mentioned existing composite down flakes and manufacturing method

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