Myopia-preventing book and manufacturing method thereof
A production method and anti-myopia technology, which are applied in special paper, inorganic compound addition, pulp raw material addition process, etc., can solve the problems of easy myopia, affecting the eye health of primary and secondary school students, and high intensity of eye use of primary and secondary school students, so as to prevent myopia. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0016] The invention provides an anti-myopia booklet and a production method. The composition is as follows in parts by weight: softwood long fiber bleached chemical pulp accounts for 60-100 parts, mechanical wood pulp accounts for 80-150 parts, and alkaline bright yellow: 2 parts- 10 parts, benzidine yellow: 10-20 parts, titanium dioxide: 20-30 parts, realgar: 20-30 parts, polyacrylonitrile fiber: 50-70 parts, acrylamide copolymer: 1-10 parts , calcium carbonate: 20-50 parts and cationic starch: 60-70 parts.
[0017] The preparation method comprises the following steps:
[0018] (1) Use a pulper to crush waste paper or wheat straw into shredded pulp with a particle size of less than 1mm and a slurry concentration of 5-10%, and pass the obtained shredded pulp through a pressure sieve with a pressure of 2 MPa and a sieve. The hole diameter is 3mm;
[0019] (2) Bleaching the ground wood pulp, and grinding and pressing the bleached pulp, so that the length of the pulp is 1-2 mm...
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