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Perspective eraser and preparation method thereof

An eraser and paraffin technology, applied in the eraser field, can solve the problems of poor word erasing performance, low transparency, easy to break, etc., and achieve the effect of excellent word erasing effect.

Pending Publication Date: 2022-04-01
LUOHE LOUFOR STATIONERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prepared product has shortcomings such as rough surface, low transparency, easy to break, poor writing performance, etc.

Method used

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  • Perspective eraser and preparation method thereof
  • Perspective eraser and preparation method thereof
  • Perspective eraser and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A see-through eraser and its preparation method. The see-through eraser is prepared from the following components according to the following proportions by weight: 45-55 parts of polyvinyl chloride paste resin; 45-60 parts of plasticizer; paraffin wax 0.1-0.5 parts; sodium cocoyl isethionate 0.1-0.5 parts; organic tin stabilizer 0.1-0.5 parts; epoxy soybean oil 1-8 parts; calcium carbonate 0-0.5 parts, phthalocyanine blue 0.0001-0.0005 share.

[0022] The preparation method comprises the following steps:

[0023] (1) Slurry preparation: Turn on the stirring, add all the raw materials into the homogenization equipment according to the proportion, turn on the vacuum device, and vacuumize while stirring to defoam. When there are almost no fine particles in the slurry, stop stirring;

[0024] (2) Filtration of slurry: filter the slurry through a filter screen, and continue to place the obtained slurry in a homogenizer to vacuumize and defoam;

[0025] (3) Mold grouting: ...

Embodiment 2

[0034] A see-through eraser and a preparation method thereof. The see-through eraser is prepared from the following components according to the following proportions by weight: 45 parts of polyvinyl chloride paste resin; 48 parts of plasticizer; 0.5 part of paraffin; 0.25 parts of sodium oleyl isethionate; 0.25 parts of organic tin stabilizer; 5.5 parts of epoxy soybean oil; 0.5 parts of calcium carbonate, 0.0001 parts of phthalocyanine blue.

[0035] The preparation method comprises the following steps:

[0036] (1) Slurry preparation: Turn on the stirring, add all the raw materials into the homogenization equipment according to the proportion, turn on the vacuum device, and vacuumize while stirring to defoam. When there are almost no fine particles in the slurry, stop stirring;

[0037] (2) Filtration of slurry: filter the slurry through a filter screen, and continue to place the obtained slurry in a homogenizer to vacuumize and defoam;

[0038] (3) Mold grouting: Open the...

Embodiment 3

[0045] A see-through eraser and a preparation method thereof. The see-through eraser is prepared from the following components according to the following proportions by weight: 48 parts of polyvinyl chloride paste resin; 45 parts of plasticizer; 0.5 part of paraffin; 0.25 parts of sodium oleyl isethionate; 0.25 parts of organic tin stabilizer; 5.5 parts of epoxy soybean oil; 0.5 parts of calcium carbonate, 0.0003 parts of phthalocyanine blue.

[0046] The preparation method comprises the following steps:

[0047] (1) Slurry preparation: Turn on the stirring, add all the raw materials into the homogenization equipment according to the proportion, turn on the vacuum device, and vacuumize while stirring to defoam. When there are almost no fine particles in the slurry, stop stirring;

[0048] (2) Filtration of slurry: filter the slurry through a filter screen, and continue to place the obtained slurry in a homogenizer to vacuumize and defoam;

[0049] (3) Mold grouting: Open the...

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Abstract

According to a traditional eraser preparation process, even if used materials are all transparent materials, due to the difference between polyvinyl chloride powder and polyvinyl chloride paste resin and dynamic processes such as plasticization, granulation and extrusion in the preparation process, the obtained eraser can only achieve a semitransparent effect, and the surface of the eraser is not in a complete glassy state, so that the product does not have mirror transparency. Compared with the prior art, the preparation method comprises the following steps: uniformly mixing the polyvinyl chloride paste resin with the plasticizer, the stabilizer, the antioxidant, the wear-resistant agent and the like to prepare paste, filtering out impurities in the paste to obtain uniform polyvinyl chloride plastified paste, defoaming the plastified paste to remove impurities in the plastified paste, and standing and crystallizing at a specific temperature. The plasticized paste is solidified into a transparent solid, different from a traditional polyvinyl chloride eraser, according to the process, the plasticized paste in the liquid state is directly crystallized and formed, the complete clean and transparent effect can be achieved, and the eraser has full transparency, has an excellent character eliminating effect and can be erased into a line.

Description

technical field [0001] The invention relates to the field of erasers, in particular to a see-through eraser and a preparation method thereof. Background technique [0002] Eraser is a kind of children's stationery product, which is mainly used to erase wrong lines and wrong handwriting. It uses physical principles to peel off handwriting from the surface of the written object. With the development of the times, rubber products of various shapes and uses emerge in an endless stream. [0003] Traditional transparent erasers are generally prepared from polyvinyl chloride resin powder, silicon dioxide, and antioxidants through traditional extrusion or calendering processes. The prepared product has the disadvantages of rough surface, low transparency, easy breakage, poor writing performance and the like. [0004] Even if the materials used in the traditional eraser preparation process are all transparent materials, due to the difference between polyvinyl chloride powder and po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L91/06C08L91/00C08K3/26C08K5/12C08K5/42B43L19/00
Inventor 宋亚丽杨晓明
Owner LUOHE LOUFOR STATIONERY MFG
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