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Pure white color card and preparation method thereof

A technology of white and white pulp, which is applied in the field of pure white card and its preparation, and can solve problems affecting color comparison, moisture absorption, color card moisture absorption, etc.

Inactive Publication Date: 2020-06-19
厦门金锐奇工贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although some paints are oil-based paints, which can achieve a certain waterproof ability when applied to the side wall of the color card, the part that is not coated with oil-based paint is still prone to moisture absorption, resulting in discoloration of the color card
[0008] Especially in southern China, the phenomenon of "returning to the south" occurs every year. Under the weather conditions of "returning to the south", the humidity in the room is extremely high. If the color card is not put away in time after it is taken out, it will cause the color card to absorb moisture. The color card will change color after absorbing moisture, which will seriously affect the color comparison

Method used

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  • Pure white color card and preparation method thereof
  • Pure white color card and preparation method thereof
  • Pure white color card and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1: A kind of pure white card, each component and its corresponding parts by weight are shown in Table 1, and obtained through the following steps:

[0044] Step 1, dehydrating and pressing the recovered paper in corresponding parts by weight to form a pulp board, and then sending it into a hydropulper for beating to obtain a slurry;

[0045] Step 2, dissolving calcium carbonate, pure white pulp, and polyvinyl alcohol in water at normal temperature (24.9° C.) in corresponding parts by weight to obtain a feed liquid;

[0046] Step 3: Mix the slurry obtained in step 1 with the material liquid in step 2, and then send it to a plastic net for papermaking, and obtain a pure white card after papermaking is completed.

[0047] Wherein, the recycled paper in step one is printing waste paper; the degree of alcoholysis of polyvinyl alcohol in step two is 65%.

Embodiment 2-4

[0048] Example 2-4: A pure white card, the difference from Example 1 is that each component and its corresponding parts by weight are shown in Table 1.

[0049] Each component and parts by weight thereof in table 1 embodiment 1-4

[0050]

Embodiment 5

[0051] Embodiment 5: A kind of pure white card, the difference with embodiment 1 is that the degree of alcoholysis of the polyvinyl alcohol in step 2 is 70%.

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Abstract

The invention discloses a pure white color card and a preparation method thereof, belonging to the field of card paper preparation. According to main points of a technical scheme, the pure white colorcard comprises the following raw materials in parts by weight: 80-90 parts of recycled paper, 5-18 parts of calcium carbonate, 1-3 parts of pure white color paste and 5-8 parts of polyvinyl alcohol,wherein the alcoholysis degree of the polyvinyl alcohol is 65%-70%. The method has the advantage that the deliquescence resistance of the pure white color card is improved.

Description

technical field [0001] The invention relates to the field of cardboard preparation, more specifically, it relates to a pure white card and a preparation method thereof. Background technique [0002] At present, the choice of color is involved in many industries, such as home improvement industry, clothing industry, toy industry and even color-related training and education fields. Taking the home improvement industry as an example, when house owners choose decoration materials, in addition to considering environmental protection factors, the color of the materials is also an important consideration. Taking the wall as an example, the owners are no longer limited to the choice of blue bricks and white walls, but choose the color of the wall according to the matching effect with the surrounding environment and furniture. Walls of different colors can make the overall decoration present different effects such as comfort, romance, or childishness. [0003] In order to enable u...

Claims

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Application Information

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IPC IPC(8): D21H27/00D21H11/14D21H17/36D21H21/28D21H21/16D21H17/67D21H19/20D21H19/14D21H19/82G01J3/52
CPCD21H11/14D21H17/36D21H17/675D21H19/14D21H19/20D21H19/824D21H21/16D21H21/28D21H27/00G01J3/52
Inventor 马长华
Owner 厦门金锐奇工贸有限公司
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