Method for producing low-formaldehyde low-volatile organic compound (VOC) melamine impregnated paper
A technology of melamine and its production method, which is applied in the direction of paper, papermaking, textiles and papermaking, can solve problems affecting people's health, achieve the effects of protecting life and health, alleviating air pollution, and reducing the content of formaldehyde and VOC
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment Construction
[0011] Preferred embodiments of the present invention will be described in detail below.
[0012] This embodiment provides a method for producing low-formaldehyde and low-VOC melamine impregnated paper, including the following production steps: glue making, glue compounding, first impregnation, first drying, second impregnation, second drying, cooling and cutting, Paving and pressing, in the glue making process, prepare urea-formaldehyde resin glue with a molar ratio of urea to formaldehyde of 1.15-1.30:1.08-1.12, preferably 1.27:1.10, using an alkali-acid-alkali synthesis process. In the one-step alkaline reaction process, adjust the pH value to 9, and after adding urea, heat up to 80°C for 30 minutes; in the second step acidic reaction process, adjust the pH value to 4.6, and react for 40 minutes; In the step alkaline reaction process, adjust the pH value to 8 and react for 20 minutes. During the first impregnation process, the pre-curing rate of the urea-formaldehyde resin...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com