Myopia preventing paper and production technology and application thereof

A production process and technology for preventing myopia, applied in the field of papermaking, can solve problems such as damage to the ecological environment and environmental pollution, and achieve the effects of solving regeneration technology, reducing logging, and overcoming serious environmental pollution

Active Publication Date: 2016-10-12
重庆市林浩教学设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of bleaching agents and dyes will cause certain p

Method used

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  • Myopia preventing paper and production technology and application thereof
  • Myopia preventing paper and production technology and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of production technology of anti-myopia paper provided by the invention comprises the following steps:

[0042] S1: Grinding and cutting the wheat straw into sheets with a length of 1cm-2cm. In this embodiment of the present invention, preferably, crushing the wheat straw into sheets with a length of 1cm, Use the grass washer to remove impurities such as sand and stones in the wheat straw.

[0043] S201: Squeeze and dehydrate the wheat straw that has been cleaned by a grass washer to remove impurities through a screw extruder, and put the dehydrated sheet-shaped wheat straw into a pre-impregnation container.

[0044] S202: Adding a solvent to the pre-impregnation container, the solvent is a mixed solvent of swelling agent, cooking agent and water, and mixing the mixed solvent with the flaky wheat straw evenly.

[0045]As preferably, swelling agent comprises the mixed solvent of sodium hydroxide and silicon compound, cooking agent comprises the mixed solvent of s...

Embodiment 2

[0065] A kind of production technology of anti-myopia paper provided by the invention comprises the following steps:

[0066] S1: Grinding the wheat straw straws and cutting them into flakes with a length of 1cm-2cm. The straw passes through the grass washer to remove impurities such as sand and stones in the straw.

[0067] S201: Squeeze and dehydrate the wheat straw that has been cleaned by a grass washer to remove impurities through a screw extruder, and put the dehydrated sheet-shaped wheat straw into a pre-impregnation container.

[0068] S202: Adding a solvent to the pre-impregnation container, the solvent is a mixed solvent of swelling agent, cooking agent and water, and mixing the mixed solvent with the flaky wheat straw evenly.

[0069] As preferably, swelling agent comprises the mixed solvent of sodium hydroxide and silicon compound, cooking agent comprises the mixed solvent of sodium sulfite and anthraquinone, wherein, sodium hydroxide accounts for 10% mass fractio...

Embodiment 3

[0089] A kind of production technology of anti-myopia paper provided by the invention comprises the following steps:

[0090] S1: Grinding and cutting the wheat straw into flakes with a length of 1cm-2cm. Use the grass washer to remove impurities such as sand and stones in the wheat straw.

[0091] S201: Squeeze and dehydrate the wheat straw that has been cleaned by a grass washer to remove impurities through a screw extruder, and put the dehydrated sheet-shaped wheat straw into a pre-impregnation container.

[0092] S202: Adding a solvent to the pre-impregnation container, the solvent is a mixed solvent of swelling agent, cooking agent and water, and mixing the mixed solvent with the flaky wheat straw evenly.

[0093] As preferably, swelling agent comprises the mixed solvent of sodium hydroxide and silicon compound, cooking agent comprises the mixed solvent of sodium sulfite and anthraquinone, wherein, sodium hydroxide accounts for the mass fraction of 15% of mixed solvent, ...

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PUM

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Abstract

The invention discloses myopia preventing paper and a production technology and application thereof. The myopia preventing paper comprises a paper body, and the paper body reflects colored light with the wavelength of 480 nm-550 nm and presents yellow with the brightness of 56%-64%. The production technology comprises the steps that waste paper and straw are taken as raw materials, the straw is crushed into flakes, subjected to impurity removing, dewatered and then placed in a container, a swelling agent, a cooking agent and water are added into the container, and all the materials are mixed to be uniform; heating is conducted for cooking, and straw pulp is prepared; the waste paper is placed in the container; water is added into the container, and paper pulp is prepared; deinking treatment is conducted on the paper pulp; impurities are removed; the straw pulp and the paper pulp are mixed to be uniform; impurities are removed again; the mixed pulp is subjected to hot-grinding dissociation and delivered into a pulp pool, and packing and a water repellent agent are added; the mixture is fed into a paper making machine, and the paper is made. The myopia preventing paper can be applied to books of accounts, exercise books and reading materials. The finished paper made through the technology is high in fiber strength, is naturally yellow without bleaching treatment, does not need to be dyed with a dyeing agent, cannot cause environmental pollution and has the effect of preventing myopia.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a production process of an environment-friendly anti-myopia paper. Background technique [0002] Human eyes perceive fonts through the chromaticity and brightness contrast between paper and characters. White paper has a strong ability to reflect light. The whiter the paper, the stronger the reflected light. caused the greatest visual fatigue. The stronger the light, the greater the degree of visual fatigue caused. Regardless of the length of the viewing distance, the ciliary muscle is in a state of excessive contraction, causing the viewpoint to move forward. This visual environment becomes an incentive for the visual distance to approach, which can easily lead to myopia in the long run . [0003] "Anti-myopia book" can emit color light of a specific frequency, creating a safe and comfortable visual environment, which can minimize visual fatigue, give full play to the two v...

Claims

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Application Information

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IPC IPC(8): D21H27/00D21B1/34D21C5/02D21C7/00D21D1/20D21D5/00D21F1/10D21F3/00D21F5/18B42D1/00B42D12/00
CPCB42D1/00B42D12/00D21B1/345D21C5/025D21C7/00D21D1/20D21D5/00D21F1/10D21F3/00D21F5/18D21H27/00Y02W30/64
Inventor 代克嘉
Owner 重庆市林浩教学设备有限公司
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