A light-blocking curtain and a production process thereof

By using a network structure of bamboo fiber, acetate fiber, and castor oil in the curtains, combined with specific materials and processes, the contradiction between light blocking and breathability is resolved, achieving highly efficient light blocking and breathability.

CN117702488BActive Publication Date: 2026-06-16HANGZHOU ZHONGYI FABRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HANGZHOU ZHONGYI FABRIC CO LTD
Filing Date
2023-11-22
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

While existing curtains improve light-blocking performance, they also result in poor air circulation, which can negatively impact user comfort, especially in bedroom environments.

Method used

Utilizing a unique network structure of bamboo fiber, cellulose acetate, and castor oil, combined with water-based polyurethane emulsion and surfactants, a dense yet porous coating is formed, allowing light to refract multiple times while permitting air penetration.

Benefits of technology

It achieves good light-blocking effect while maintaining fast breathability, ensuring unobstructed airflow and improving user comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the field of curtains, in particular to a light-shielding curtain and a production process thereof. The light-shielding curtain comprises a base cloth and a coating film, and the coating film is coated on the surface of the base cloth; the coating film comprises the following raw materials: 150-200 g / L water-based polyurethane emulsion, 0.1-3 g / L penetrating agent, 0.1-5 g / L silane coupling agent, 5-15 g / L bamboo fiber, 8-20 g / L acetic acid fiber, 1-10 g / L castor oil and 1-10 g / L surfactant; and the water is in a residual amount; the production process is as follows: the water-based polyurethane emulsion, the penetrating agent, the silane coupling agent, the bamboo fiber, the acetic acid fiber, the castor oil, the surfactant and the water are uniformly mixed to obtain mixed slurry; the base cloth is soaked in the mixed slurry, then taken out, dried and baked, the coating film is coated on the outer side of the base cloth, and the light-shielding curtain is obtained. The application has the advantages that the light-shielding property and the air permeability of the curtain are simultaneously ensured.
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Citation Information

Patent Citations

  • Method for preparing light-shielding curtain by padding-crosslinking film formation

    CN110680171A

  • Improved hydrophobicity with nanofiber and fluoropolymer coating

    US20160002484A1