Supercharge Your Innovation With Domain-Expert AI Agents!

Writing paper and preparation process thereof

A technology for writing paper and minerals, applied in the field of papermaking, can solve the problems of reducing the strength of the paper, the color of the color ink cannot be well chromatographed, etc., and achieve the effect of improving the richness

Pending Publication Date: 2021-04-16
上海鱼圆文具有限公司
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the main raw material of paper is fiber, the water absorption of fiber is relatively strong, when color ink is used to paint on paper, the fiber on the paper will quickly absorb the color ink, resulting in the color of the color ink not being able to separate out better , can not reflect the color of the color ink well, and the paper will be soaked due to the rapid water absorption of the fiber, reducing the strength of the paper

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] The first aspect of this embodiment provides a writing paper, which includes a paper layer, a mineral layer and a hydrophobic layer from bottom to top, the thickness of the mineral layer is 35 μm, and the preparation material of the mineral layer is, Including 4 parts of inorganic salt, 15 parts of hydroxypropyl methylcellulose, 30 parts of polyvinyl alcohol and 80 parts of water, the inorganic salt is a mixture of calcium carbonate and titanium dioxide, the quality of calcium carbonate and titanium dioxide The ratio is: 3:1, the mesh number of the calcium carbonate is 800 mesh, the titanium dioxide is rutile type, the calcium carbonate is purchased from Jiande Hexie Heavy Calcium Factory, and the fineness is 800 mesh. The titanium dioxide was purchased from Dongtan Weimao Chemical Co., Ltd., product number: r103, and the hydroxypropyl methylcellulose was purchased from Renqiu Jinyu Chemical Co., Ltd., product number: hpmc. The degree of polymerization of the polyvinyl ...

Embodiment 2

[0068] The first aspect of this embodiment provides a writing paper, which includes a paper layer, a mineral layer and a hydrophobic layer from bottom to top, the thickness of the mineral layer is 35 μm, and the preparation material of the mineral layer is, Including 4 parts of inorganic salt, 15 parts of hydroxypropyl methylcellulose, 30 parts of polyvinyl alcohol and 80 parts of water, the inorganic salt is a mixture of calcium carbonate and titanium dioxide, the quality of calcium carbonate and titanium dioxide The ratio is: 4:1, the mesh number of the calcium carbonate is 800 mesh, the titanium dioxide is rutile type, the calcium carbonate is purchased from Jiande Hexie Heavy Calcium Factory, and the fineness is 800 mesh. The titanium dioxide was purchased from Dongtan Weimao Chemical Co., Ltd., product number: r103, and the hydroxypropyl methylcellulose was purchased from Renqiu Jinyu Chemical Co., Ltd., product number: hpmc. The degree of polymerization of the polyvinyl ...

Embodiment 3

[0083] The first aspect of this embodiment provides a writing paper, which includes a paper layer, a mineral layer and a hydrophobic layer from bottom to top, the thickness of the mineral layer is 35 μm, and the preparation material of the mineral layer is, Including 4 parts of inorganic salt, 15 parts of hydroxypropyl methylcellulose, 30 parts of polyvinyl alcohol and 80 parts of water, the inorganic salt is a mixture of calcium carbonate and titanium dioxide, the quality of calcium carbonate and titanium dioxide The ratio is: 5:1, the mesh number of the calcium carbonate is 800 mesh, the titanium dioxide is rutile type, the calcium carbonate is purchased from Jiande Hexie Heavy Calcium Factory, and the fineness is 800 mesh. The titanium dioxide was purchased from Dongtan Weimao Chemical Co., Ltd., product number: r103, and the hydroxypropyl methylcellulose was purchased from Renqiu Jinyu Chemical Co., Ltd., product number: hpmc. The degree of polymerization of the polyvinyl ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
solid contentaaaaaaaaaa
degree of polymerizationaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of papermaking, and particularly relates to writing paper and a preparation process thereof. The writing paper sequentially comprises a paper layer, a mineral substance layer and a hydrophobic layer from bottom to top, and the mineral substance layer is prepared from the following raw materials: at least one inorganic salt with the relative molecular mass of 20-300, at least one modified organic matter and a sizing agent. According to the technical scheme, the mineral substance layer is coated on the paper layer to treat the surface of the paper, so that when a user coats ink on the mineral substance layer, the ink is not easily and quickly absorbed by the paper, the ink chromatography is more obvious, the richness of ink colors is improved, the user can coat ink with various colors according to own hobbies, and the ink does not permeate the whole paper. The hydrophobic layer is printed on the mineral substance layer in a silk-screen mode, the hydrophobic layer can be designed into various element patterns representing personality, ink cannot infiltrate the hydrophobic layer, and the hydrophobic layer can keep a good form all the time.

Description

technical field [0001] The application belongs to the technical field of papermaking, and in particular relates to a writing paper and a preparation process thereof. Background technique [0002] With the development of the economic situation, people's requirements for the quality of life are getting higher and higher. Some paper and ink lovers like to use unique patterned paper cards to show their personality, express their emotions or blessings. However, the existing paper cards are either pure white, and all patterns and colors need to be drawn and designed by themselves, which takes a lot of time to draw and design patterns by themselves; or they are printed and formed complete paper cards, which are all repetitive patterns. Not representative. [0003] Now there is a lack of a writing paper that has a printed pattern design and can add your favorite elements through ink. Because the main raw material of paper is fiber, the water absorption of fiber is relatively stro...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00D21H19/82D21H19/38D21H19/40D21H19/64D21H19/54D21H19/52D21H19/44D21H19/60D21H19/56D21H21/16D21H21/38D21H19/46
Inventor 余昊源
Owner 上海鱼圆文具有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com