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Paper board discolored by water and processing technology thereof

A technology that changes color when exposed to water and cardboard is applied in the direction of paper, anti-biological agent addition, pigment/opacifier addition, etc. It can solve the problems that children tend to lose patience in learning, the time for cardboard to develop color is short, and the time for learning is short. To achieve the effect of prolonging the reduction time, lasting discoloration time and good fineness

Inactive Publication Date: 2019-08-16
青岛市贤俊龙彩印有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Children's picture book is an indispensable educational material for children's education. Combining the water-changing ink with the learning picture book can not only improve children's curiosity, but also increase the fun of learning. However, when the color-changing ink becomes transparent when it meets water, its clarity is not enough. It is good, and the color development of the cardboard is slow, but the recovery time is relatively fast, which makes the time for the real color development of the cardboard shorter, which leads to a shorter time for children to really learn. They can only make the album color by frequent dripping, which is more troublesome to use. easy to lose patience in learning

Method used

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  • Paper board discolored by water and processing technology thereof
  • Paper board discolored by water and processing technology thereof
  • Paper board discolored by water and processing technology thereof

Examples

Experimental program
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preparation example 1

[0035] Preparation example 1: (1) drying and dehydrating Phellodendron Phellodendri, Aloe Vera, and Rubia leaves until the water content is below 10%, and pulverizing them into a slurry, the mass ratio of Phellodendron Phellodendri, Aloe Vera, and Rubia is 1:1.2:0.8; (2) making the slurry The raw material is mixed with absolute ethanol to make a mixed solution, and the mixed solution is extracted at a constant temperature of 50°C for 1 hour. After the extraction is completed, it is centrifuged at a speed of 2800r / min, the residue is filtered, the filtrate is concentrated, and the ethanol is recovered to obtain a plant Antibacterial agent, the mass ratio of slurry and absolute ethanol is 1:20.

preparation example 2

[0036] Preparation example 2: (1) drying and dehydrating Phellodendron Phellodendri, Aloe Vera, and Rubia leaves until the moisture content is below 10%, and pulverizing them into a slurry, the mass ratio of Phellodendron Phellodendri, Aloe Vera, and Rubia leaves being 1:1.3:1; (2) making the slurry The raw material is mixed with absolute ethanol to make a mixed solution, and the mixed solution is extracted at a constant temperature of 50°C for 1 hour. After the extraction is completed, it is centrifuged at a speed of 2900r / min, the residue is filtered, the filtrate is concentrated, and the ethanol is recovered to obtain a plant Antibacterial agent, the mass ratio of slurry and absolute ethanol is 1:23.

preparation example 3

[0037] Preparation example 3: (1) drying and dehydrating Phellodendron Phellodendri, Aloe Vera, and Rubia leaves until the water content is below 10%, and pulverizing them into a slurry, the mass ratio of Phellodendron Phellodendri, Aloe Vera, and Rubia is 1:1.5:1.2; (2) making the slurry Mix the material with absolute ethanol to make a mixed solution, extract the mixed solution at a constant temperature of 50°C for 1 hour, centrifuge at a speed of 3000r / min after the extraction is completed, filter out the residue, concentrate the filtrate, recover the ethanol, and obtain the plant Antibacterial agent, the mass ratio of slurry and absolute ethanol is 1:25.

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Abstract

The invention discloses a paper board discolored by water and a processing technology thereof. The paper board discolored by water comprises a printing substrate, wherein one side of the printing substrate is sequentially provided with an ink layer, a light oil layer and a color-changing ink layer. The color-changing ink layer comprises color-changing ink and aqueous polyurethane emulsion with a mass ratio of 1: 0.1-0.3. The color-changing ink comprises the following components in parts by weight: 40-60 parts of acrylic emulsion, 10-20 parts of nano silicon dioxide, 1-5 parts of a film formingauxiliary agent, 2-5 parts of a defoaming agent, 10-30 parts of deionized water, 30-40 parts of a filler, 2-4 parts of a dispersant and 4-8 parts of a plant antibacterial agent. The processing technology comprises S1, selecting the printing substrate; S2, printing the ink; S3, brushing varnish; and S4, brushing the color-changing ink. The paper board discolored by water has the advantages of clear color development, fast color development, long reduction time and antibiosis. In addition, the preparation method has the advantage of simple preparation process.

Description

technical field [0001] The invention relates to the technical field of color-changing ink, more specifically, it relates to a water-changing paperboard and its processing technology. Background technique [0002] Water-changing inks on the market are generally divided into two categories. One is to change from color to colorless or color to color after contact with water. Most of these inks use inorganic heavy metals as pigments; the other is to become transparent when contact with water. The ink is water-based screen printing ink, which is white in color, becomes transparent when exposed to water, and restores after drying. It does not contain harmful materials and has passed EN71-3 testing. It is a safe water-based screen printing color-changing ink, suitable for printing all kinds of toys, wonderful Canvas, stickers, beer coasters, umbrellas or something fun. [0003] Children's picture book is an indispensable educational material for children's education. Combining the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/42D21H21/28D21H21/36C09D11/52C09D11/106C09D11/03
CPCC09D11/03C09D11/106C09D11/52D21H19/42D21H21/28D21H21/36
Inventor 陈明桃
Owner 青岛市贤俊龙彩印有限公司
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