Celluloid sheet and its manufacturing process

A celluloid sheet and manufacturing process technology, applied in the field of celluloid sheet and its manufacturing process, can solve the problems of elongation, hardness, and surface finish not meeting quality requirements, weak toughness, elasticity, and fastness, and easy color changes, etc. Achieve the effect of improving toughness and strength, high elongation, and reducing flammability

Inactive Publication Date: 2016-08-17
杭州富阳振华文体用品有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The color is easy to change if it is used for a long time;
[0004] 2. Using ethyl acetate as a toughening agent, the toughness, elasticity and fastness are weak, and the elongation, hardness and surface finish cannot meet the quality requirements
[0005] 3. Easy to burn

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Celluloid sheet and its manufacturing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] like figure 1 As shown, the manufacturing process of the celluloid sheet: first take 600kg of nitrocellulose, remove the moisture contained in the nitrocellulose with a centrifuge and then add 100kg of ethanol, so that the nitrocellulose is wetted by ethanol; then use the centrifuge again for dehydration, the The dehydrated ethanol-containing nitrocellulose was added to the kneader, and 250kg of camphor powder, 41kg of acetone, 1kg of pigment powder, 1kg o...

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

No PUM Login to view more

Abstract

The invention discloses a celluloid sheet and a preparation process thereof. The celluloid sheet comprises the following components: nitrocotton, acetone, ethanol, camphor powder, glacial acetic acid, a stabilizer, distilled water, pigment powder, titanium dioxide and a brightener. In the process, the dehydrated nitrocotton is used as a main material to which is acetone and ethanol solution are added; the titanium dioxide is used as a packing material; the stabilizer, the pigment powder and the glacial acetic acid with camphor powder added are used as a plasticizer and a toughening agent; the celluloid sheet material for pingpong balls is prepared by the processes of heating and kneading, filtering and discharging, rubber mixing and calendering, hot pressing, flaking, drying and flatting. According to the invention, by adopting the titanium dioxide as the pakcing material, the celluloid sheet has the effects of high elongation, reinforcement and aging resistance as well as the advantages of sunlight resistance, no cracking, no color change and the like; the service life of the celluloid product can be prolonged while the toughness and strength of celluloid are improved; and moreover, the added stabilizer improves the stability of the pigment, and the added glacial acetic acid can enhance the stability and reduce the inflammability of the product.

Description

technical field [0001] The invention relates to the technical field of processing celluloid sheets, in particular to celluloid sheets and a manufacturing process thereof. Background technique [0002] Celluloid flakes are the material for making table tennis balls. At present, all table tennis manufacturers use white game pieces as the material for making table tennis balls. The white race tablet is made of nitrocellulose as the main material, acetone and ethanol as the solvent, zinc oxide as the filler, adding camphor powder as a plasticizer and ethyl acetate as a toughening agent. The celluloid sheet material for table tennis is made after the processes of rubber mixing, calendering, hot pressing, flakes, drying and flattening. Its main shortcomings are as follows: [0003] 1. The color is easy to change if it is used for a long time; [0004] 2. Using ethyl acetate as toughening agent, the toughness, elasticity and fastness are weak, and the elongation, hardness and s...

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 Patents(China)
IPC IPC(8): C08L1/18C08K13/02C08K5/09C08K3/22
Inventor 方桂花
Owner 杭州富阳振华文体用品有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap