Unlock instant, AI-driven research and patent intelligence for your innovation.

A reusable printing material

A technology of printing materials and porous materials, applied in the field of printing materials, can solve the problems of low contrast and resolution, limited application range, etc., and achieve the effects of long color retention time, long service life and high water absorption rate

Active Publication Date: 2018-10-26
BAODING LUCKY FILM +1
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

They are all based on the fact that the sprayed white layer becomes transparent when it meets water, and the carbon black layer or the color of the dark base paper realizes the physical property change of water writing. The handwriting color of the water writing paper prepared by this method is mostly black, and the contrast and resolution are not good. High, the scope of application is limited to calligraphy and painting exercises

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
  • A reusable printing material

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0064] In an embodiment of the present invention, the gelatin may be French gelatin, German gelatin, American gelatin, or Kaiping gelatin. In the present invention, the gelatin is preferably added to the coating liquid in the form of a gelatin solution; the mass fraction of the gelatin solution is preferably 1%-20%. The preparation method of the gelatin solution is not particularly limited in the present invention, and the method for preparing the gelatin solution well known to those skilled in the art can be adopted. In the present invention, the preparation method of described gelatin solution preferably comprises the following steps:

[0065] Mix gelatin and water and heat to obtain a gelatin solution.

[0066] In the present invention, the gelatin and water are preferably mixed until the gelatin swells and then heated. The present invention will decide to add the mass ratio of gelatin and water according to the mass fraction of gelatin solution required actually. In the...

Embodiment 1

[0086] 0.01g (E)-4-(2-(9,9-dimethyl-2,3,9,9a-tetrahydrooxazoline[3,2-a]indole-9a-)vinyl) -N,N-dimethylaniline dye was dissolved in 10mL of KH560 silane coupling agent to obtain a dye solution;

[0087] Mix 5g of alumina, 2g of acetic acid and 30g of water, and disperse at 5000rpm for 30min to obtain an alumina solution;

[0088] Aluminum oxide solution and 10% mass fraction of polyvinyl alcohol 100g of PVA235, 10% of 2-hydroxyl-4-n-octyloxybenzophenone 3g, 10% of mass fraction of T -2 polyether modified organosilane leveling agent 8g, mass fraction is 1.8% boric acid film hardening agent mixed, obtain dispersion liquid;

[0089] The dispersion liquid and the dye solution are mixed to obtain a coating liquid.

[0090] The above coating liquid is coated on the PET base material with a slope flow extruder to obtain a reprintable material;

[0091] The reprintable material includes a PET substrate of 80 μm and a coating layer of 10 μm.

[0092] The reprintable material prepare...

Embodiment 2

[0094] 0.01g (E)-4-(2-(9,9-dimethyl-7-nitro-2,3,9,9a-tetrahydrooxazoline[3,2-a]indole-9a -) Vinyl)-N,N-dimethylaniline dye was dissolved in 100mL of ethanol to obtain a dye solution;

[0095] Mix 20g of alumina, 10g of citric acid and 100g of water, and disperse at 10000rpm for 10min to obtain an alumina solution;

[0096] Alumina solution and 10% gelatin solution 500g, 10% 2,4-dihydroxybenzophenone 15g, 10% polyether modified organosilane of 5883-DMP 30g and 50g of s-triazine sodium salt hardening agent with a mass concentration of 10g / L are mixed to obtain a dispersion;

[0097] The dispersion liquid and the dye solution are mixed to obtain a coating liquid.

[0098] The above coating liquid is coated on the PP base material with a slope flow extruder to obtain a reprintable material;

[0099] The reprintable material includes a PP substrate of 110 μm and a coating layer of 15 μm.

[0100] The reprintable material prepared in Example 2 uses water as the printing color de...

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
particle diameteraaaaaaaaaa
thicknessaaaaaaaaaa
water absorptionaaaaaaaaaa
Login to View More

Abstract

The invention provides a reusable printing material. The reusable printing material comprises a base material layer and a coating layer combined to the surface of the base material layer. The coating layer is obtained by coating coating liquid. The coating liquid is prepared from, by weight, 0.001-1 part of dye, 0-150 parts of an organic solvent, 5-200 parts of water, 0-10 parts of a dispersing agent, 0.1-10 parts of functional auxiliaries, 1-30 parts of a cellular material and 1-20 parts of an adhesive. The reusable printing material is good in water longitudinal permeability, long in color retaining time, high in water absorbing rate and long in service life. Experiment results indicate that transverse spreading and seeping phenomenon cannot occur during printing; when the thickness of the coating layer is 10 micrometers, the color retaining time is 50-100 h; when the thickness of the coating layer is 5 micrometers, the surface becomes dry after 5-10 times of continuous printing; the water absorbing rate of the reusable printing material is 30-80%.

Description

technical field [0001] The invention relates to the technical field of printing materials, in particular to a reprintable material. Background technique [0002] Traditional writing paper is disposable, and the writing on it cannot be erased or reused. People writing drafts, copying exercises, etc. will inevitably waste a lot of paper. Disposable writing paper or printing paper is seriously wasted. From the perspective of environmental protection and resource reuse, paper recycling is particularly important. [0003] At present, there are also a large number of reusable water-colored water writing papers on the market, but the existing water writing papers are all composed of paper base, carbon black layer and sprayed white layer or directly composed of dark base paper and sprayed white layer . They are all based on the fact that the sprayed white layer becomes transparent when it encounters water, and the carbon black layer or the color of the dark base paper realizes th...

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): C08J7/04C09D129/04C09D189/00C09D7/61C09D7/63C08L67/02C08L23/12C08L27/06
CPCC08J7/0427C08J2323/12C08J2327/06C08J2367/02C09D7/61C09D7/63C09D129/04C09D189/00C08L83/12C08K13/02C08K5/353C08K2003/2227C08K5/09C08K5/132C08K5/5425C08K5/092C08K3/28C08K5/3475C08K2003/387Y02P20/582
Inventor 卢志凯张静高学军王洪泽李建平黄海水盛兰张婷陈俏男张晓安
Owner BAODING LUCKY FILM