Waterproof spraying liquid for down jacket and preparation method of waterproof spraying liquid

A technology for down jackets and spraying liquid, applied in the field of down jackets, can solve the problems such as poor air permeability of down jackets, achieve good waterproof protection effect, avoid insufficient filling, outstanding surface activity and lubricity.

Active Publication Date: 2021-10-08
ANHUI GUIGU E COMMERCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a waterproof spraying liquid for down jackets and a preparation method thereof, which solves the defect that the waterproof spraying liquid for down jackets in the prior art can cause the down jackets to have poor air permeability

Method used

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  • Waterproof spraying liquid for down jacket and preparation method of waterproof spraying liquid

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Effect test

Embodiment 1

[0022] A waterproof spraying solution for down jackets, comprising A component and B component, and the A component is sprayed on the outer surface of the B component during spraying. Wherein, the A component includes a binder, a porous framework material and a water-absorbing swelling agent filled in the pores of the porous framework material, the binder is vinyltrimethoxysilane, and the amount added is the porous framework material and the water-absorbing swelling agent 5% of the total weight, the porous framework material is macroporous titanium dioxide, and the pore median diameter is 80nm, the volume filling rate of the water-absorbing swelling agent is 5%, and the water-absorbing swelling agent is composed of modified bentonite and alginic acid, modified The median diameter of the bentonite is 5nm, and the weight ratio of the modified bentonite to alginic acid is 3:1; the B component includes a porous separator, and the porous separator is a porous polyurethane resin.

...

Embodiment 2

[0028] A waterproof spraying solution for down jackets, comprising A component and B component, and the A component is sprayed on the outer surface of the B component during spraying. Among them, the A component includes a binder, a porous framework material and a water-absorbing swelling agent filled in the pores of the porous framework material. 10% of the total weight of the agent, the porous framework material is macroporous silica, and the pore median diameter is 250nm, the volume filling rate of the water-absorbing swelling agent is 12%, and the water-absorbing swelling agent is composed of modified bentonite and alginic acid , the median diameter of the modified bentonite is 30nm, and the weight ratio of the modified bentonite to alginic acid is 7:1; the B component includes a porous separator, and the porous separator is a porous polyurethane resin.

[0029] The preparation method of this waterproof spray liquid, the step comprises:

[0030] (1) Preparation of compone...

Embodiment 3

[0034] A waterproof spraying solution for down jackets, comprising A component and B component, and the A component is sprayed on the outer surface of the B component during spraying. Wherein, the A component includes a binder, a porous framework material and a water-absorbing swelling agent filled in the pores of the porous framework material, the binder is vinyltrimethoxysilane, and the amount added is the porous framework material and the water-absorbing swelling agent 20% of the total weight, the porous framework material is macroporous silica, and the pore median diameter is 500nm, the volume filling rate of the water-absorbing swelling agent is 20%, and the water-absorbing swelling agent is composed of modified bentonite and alginic acid, The median diameter of the modified bentonite is 50nm, and the weight ratio of the modified bentonite to alginic acid is 10:1; the B component includes a porous separator, and the porous separator is a porous polyurethane resin.

[0035...

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Abstract

The invention discloses a waterproof spraying liquid for a down jacket and a preparation method of the waterproof spraying liquid. The waterproof spraying liquid comprises a component A and a component B. During spraying, the component A is sprayed to the outer surface of the component B. The component A comprises a binder, a porous framework material and a water-absorbing expanding agent that fills pores of the porous framework material; the volume filling rate of the water-absorbing expanding agent is 5-20%; the water-absorbing expanding agent is composed of modified bentonite and alginic acid; and the component B comprises a porous separation material. After the spraying liquid is sprayed on the surface of a down jacket fabric and is dried and cured, each of double-layer coatings has a large number of pores, so that the down jacket has good air permeability; when water drops are attached to the surface of the down jacket, the outer coating at the corresponding position absorbs a certain amount of water, and then the pores are completely closed rapidly through expansion of pore fillers, so that subsequent rainwater cannot permeate into the pores, and a good waterproof protection effect on inner down feather is achieved; and the inner coating plays a role in isolating the water, so that the water is prevented from permeating inwards by the infiltrated outer coating.

Description

technical field [0001] The invention relates to the technical field of down jackets, in particular to a waterproof spray liquid for down jackets and a preparation method thereof. Background technique [0002] Ordinary down jackets on the market do not have waterproof function. In rainy and snowy weather, the water droplets attached to the surface of the down jacket fabric will penetrate inward, resulting in a decrease in the insulation effect of the down jacket. In recent years, down jackets with waterproof function have also appeared. These down jackets are waterproof by spraying an airtight coating on the surface of the fabric, similar to raincoat membranes, or better manufacturers will choose hydrophobic materials, etc. Although these down jackets can be waterproof It can achieve a certain waterproof effect, but at the same time, it will cause the down jacket to have poor air permeability. After wearing, it is easy to sweat, stuffy and humid, and the comfort is greatly re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14D06N3/00
CPCD06N3/14D06N3/0063D06N3/009D06N3/0077
Inventor 吴昆明张传贵李伟
Owner ANHUI GUIGU E COMMERCE
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