阅读说明：本技术 一种防近视纸的生产方法 (Production method of myopia-preventing paper ) 是由 李昶生 于 2020-07-01 设计创作，主要内容包括：本发明公开了一种防近视纸的生产方法,包括以下原料：落叶松木浆、高粱秆浆、亚麻浆、化机浆、助留剂、浆内施胶剂、碱性嫩黄、柠檬黄、耐晒黄和填料,将落叶松木、高粱秆和亚麻等原材料经碎浆机打碎,对落叶松木浆、高粱秆浆和亚麻浆的混合浆料中加入碱性嫩黄、柠檬黄和耐晒黄,得到上色浆料,在上色浆料中逐步添加化机浆、助留剂、浆内施胶剂和填料,并在添加的同时对浆料进行不停的搅拌混合,将成型的纸浆送至造纸机中进行造纸,得到湿纸页,将脱水后的纸张放入干燥机进行干燥,将纸张取出得到防近视纸,该生产方法能够有效的降低颜色的对比度,并降低反射光线的强度,同时使纸张更加细腻,提升使用时的体验。(The invention discloses a production method of myopia-preventing paper, which comprises the following raw materials: larch wood pulp, sorghum stalk pulp, flax pulp, chemi-mechanical pulp, retention aid, in-pulp sizing agent, alkaline bright yellow, lemon yellow, sun-proof yellow and filler, the larch, sorghum stalk and flax are smashed by a pulper, adding alkaline light yellow, lemon yellow and sun-proof yellow into the mixed pulp of larch wood pulp, sorghum stalk pulp and flax pulp to obtain coloring pulp, gradually adding chemi-mechanical pulp, retention aid, sizing agent and filler into the coloring pulp, continuously stirring and mixing the pulp while adding, feeding the formed paper pulp into a paper machine for papermaking to obtain wet paper sheets, drying the dewatered paper sheets in a dryer, taking out the paper sheets to obtain the anti-myopia paper, the production method can effectively reduce the contrast of colors, reduce the intensity of reflected light, simultaneously enable paper to be finer and finer, and improve the experience in use.)

1. The production method of the myopia-preventing paper is characterized in that the myopia-preventing paper comprises the following raw materials: larch wood pulp, sorghum stalk pulp, flax pulp, chemi-mechanical pulp, retention aid, in-pulp sizing agent, alkaline bright yellow, lemon yellow, sun-proof yellow and filler, and are proportioned according to the following parts by weight: 30 parts of larch wood pulp, 20 parts of sorghum stalk pulp, 20 parts of flax pulp, 35 parts of chemi-mechanical pulp, 0.5 part of retention aid, 2 parts of internal sizing agent, 0.02 part of alkaline bright yellow, 0.02 part of lemon yellow, 0.02 part of sun-proof yellow and 25 parts of filler.

2. The production method of the myopia-preventing paper is characterized in that 45 parts of larch wood pulp, 15 parts of sorghum stalk pulp, 10 parts of flax pulp, 30 parts of chemi-mechanical pulp, 0.3 part of retention aid, 1 part of sizing agent in pulp, 0.01 part of alkaline bright yellow, 0.02 part of lemon yellow, 0.02 part of sun-proof yellow and 20 parts of filler are adopted.

3. The production method of myopia prevention paper, according to claim 1, characterized in that the larch wood pulp is 40 parts, the sorghum stalk pulp is 25 parts, the flax pulp is 5 parts, the chemi-mechanical pulp is 25 parts, the retention aid is 0.4 part, the sizing agent in pulp is 1.5 parts, the alkali bright yellow is 0.02 part, the lemon yellow is 0.01 part, the sun-proof yellow is 0.02 part and the filler is 18 parts.

4. The production method of the myopia-preventing paper is characterized in that 25 parts of larch wood pulp, 30 parts of sorghum stalk pulp, 15 parts of flax pulp, 28 parts of chemi-mechanical pulp, 0.6 part of retention aid, 1 part of sizing agent in pulp, 0.02 part of alkaline bright yellow, 0.02 part of lemon yellow, 0.01 part of sun-proof yellow and 30 parts of filler.

5. A method of producing anti-myopia paper according to claim 1, including the steps of:

s1: crushing raw materials such as larch, sorghum stalks and flax by a pulper, adding a proper amount of water in the process of crushing the larch, the sorghum stalks and the flax, and preventing the drying in the crushing process;

s2: mixing and sieving three kinds of pulp of larch wood pulp, sorghum stalk pulp and flax pulp, collecting the qualified mixed pulp after sieving, putting the intercepted unqualified large-particle raw material into a pulper again for crushing, and repeating the steps of sieving, collecting and re-crushing;

s3: adding alkaline light yellow, lemon yellow and sun-proof yellow into the mixed pulp of the larch wood pulp, the sorghum stalk pulp and the flax pulp, and uniformly mixing to blend the alkaline light yellow, the lemon yellow and the sun-proof yellow into the mixed pulp to obtain coloring pulp;

s4: gradually adding chemi-mechanical pulp, a retention aid, an internal sizing agent and a filler into the coloring pulp, and continuously stirring and mixing the pulp while adding to enable the pulp to be preliminarily molded;

s5: and (3) conveying the formed paper pulp to a paper machine for papermaking to obtain wet paper sheets, conveying the wet paper sheets to a squeezer for squeezing and dewatering, putting the dewatered paper sheets into a dryer for drying, and taking out the paper sheets after the paper sheets are completely dried to obtain the anti-myopia paper.

Technical Field

The invention relates to the technical field of myopia prevention paper, in particular to a production method of myopia prevention paper.

Background

The anti-myopia paper is white paper used by people in daily life, has white full-frequency reflection and is stimulating to eyes, while the faint yellow anti-myopia paper can reflect specific spectral color light, is matched with other color light and has proper contrast, so that the influence of the white full-frequency light on the eyesight can be effectively improved, and the anti-myopia effect is achieved.

At present, the number of myopia patients in China is as much as 6 hundred million, which is almost half of the total population number in China. The myopia rates of high school students and college students exceed seven-generation and increase year by year, and the myopia rate of teenagers is high in the world first, which seriously threatens the national security of China. At present, students in China still commonly adopt 'white paper' with higher whiteness, the white paper can truly and objectively reflect all colors of printed pictures and texts, the contrast and the definition of the characters are improved, books look bright in color, but the books are too white, the contrast of the colors can be increased, the reflected light is too strong, visual nerves can be excessively stimulated, visual fatigue is caused, and myopia is very easily induced. On the other hand, in order to pursue the whiteness of paper, manufacturers often add some fluorescent whitening agents, and these additives not only have adverse effects on the health of teenagers, but also increase the cost of enterprises and pollute the environment.

Disclosure of Invention

The invention aims to provide a production method of myopia-preventing paper, which comprises the steps of smashing raw materials such as larch, sorghum stalks and flax by a pulper, adding a proper amount of water in the process of smashing the larch, the sorghum stalks and the flax to prevent drying in the smashing process, mixing and sieving three kinds of pulp such as larch wood pulp, sorghum stalk pulp and flax pulp, collecting qualified mixed pulp after sieving, putting the intercepted large-particle raw materials which are unqualified into the pulper again to smash, repeating the steps of sieving, collecting and smashing again, adding alkaline bright yellow, lemon yellow and sun-fast yellow into the mixed pulp of the larch wood pulp, the sorghum stalk pulp and the flax pulp, uniformly mixing to enable the alkaline bright yellow, the lemon yellow and the sun-fast yellow to be blended into the mixed pulp to obtain coloring pulp, and gradually adding chemimechanical pulp, retention aid, plasticizer, flax seed oil and flax into the coloring pulp, Sizing agent and filler in the thick liquid, and carry out stirring mixture that does not stop to thick liquids when adding, make the preliminary shaping of paper pulp, send fashioned paper pulp to papermaking in the paper machine, obtain wet page, send wet page to the squeezer and squeeze the dehydration, put into the desiccator with the paper after the dehydration and carry out the drying, treat paper complete drying back, take out the paper and obtain myopia prevention paper, this production method can the effectual contrast that reduces the colour, and reduce reflection light's intensity, make the paper more exquisite simultaneously, experience when promoting the use, in order to solve the problem that proposes in the above-mentioned background art.

In order to achieve the purpose, the invention provides the following technical scheme: a production method of myopia-preventing paper comprises the following raw materials: larch wood pulp, sorghum stalk pulp, flax pulp, chemi-mechanical pulp, retention aid, in-pulp sizing agent, alkaline bright yellow, lemon yellow, sun-proof yellow and filler, and are proportioned according to the following parts by weight: 30 parts of larch wood pulp, 20 parts of sorghum stalk pulp, 20 parts of flax pulp, 35 parts of chemi-mechanical pulp, 0.5 part of retention aid, 2 parts of internal sizing agent, 0.02 part of alkaline bright yellow, 0.02 part of lemon yellow, 0.02 part of sun-proof yellow and 25 parts of filler.

Preferably, 45 parts of larch wood pulp, 15 parts of sorghum stalk pulp, 10 parts of flax pulp, 30 parts of chemi-mechanical pulp, 0.3 part of retention aid, 1 part of internal sizing agent, 0.01 part of alkaline bright yellow, 0.02 part of lemon yellow, 0.02 part of sun-proof yellow and 20 parts of filler.

Preferably, 40 parts of larch wood pulp, 25 parts of sorghum stalk pulp, 5 parts of flax pulp, 25 parts of chemi-mechanical pulp, 0.4 part of retention aid, 1.5 parts of internal sizing agent, 0.02 part of alkaline bright yellow, 0.01 part of lemon yellow, 0.02 part of sun-proof yellow and 18 parts of filler.

Preferably, 25 parts of larch wood pulp, 30 parts of sorghum stalk pulp, 15 parts of flax pulp, 28 parts of chemi-mechanical pulp, 0.6 part of retention aid, 1 part of internal sizing agent, 0.02 part of alkaline bright yellow, 0.02 part of lemon yellow, 0.01 part of sun-proof yellow and 30 parts of filler.

Preferably, the method comprises the following steps:

the method comprises the following steps: crushing raw materials such as larch, sorghum stalks and flax by a pulper, adding a proper amount of water in the process of crushing the larch, the sorghum stalks and the flax, and preventing the drying in the crushing process;

step two: mixing and sieving three kinds of pulp of larch wood pulp, sorghum stalk pulp and flax pulp, collecting the qualified mixed pulp after sieving, putting the intercepted unqualified large-particle raw material into a pulper again for crushing, and repeating the steps of sieving, collecting and re-crushing;

step three: adding alkaline light yellow, lemon yellow and sun-proof yellow into the mixed pulp of the larch wood pulp, the sorghum stalk pulp and the flax pulp, and uniformly mixing to blend the alkaline light yellow, the lemon yellow and the sun-proof yellow into the mixed pulp to obtain coloring pulp;

step four: gradually adding chemi-mechanical pulp, a retention aid, an internal sizing agent and a filler into the coloring pulp, and continuously stirring and mixing the pulp while adding to enable the pulp to be preliminarily molded;

step five: and (3) conveying the formed paper pulp to a paper machine for papermaking to obtain wet paper sheets, conveying the wet paper sheets to a squeezer for squeezing and dewatering, putting the dewatered paper sheets into a dryer for drying, and taking out the paper sheets after the paper sheets are completely dried to obtain the anti-myopia paper.

Compared with the prior art, the invention has the beneficial effects that:

the invention provides a production method of myopia-preventing paper, which comprises the steps of smashing raw materials such as larch, sorghum stalk and flax by a pulper, adding a proper amount of water in the process of smashing the larch, the sorghum stalk and the flax, preventing drying in the smashing process, mixing and sieving three kinds of pulp such as larch wood pulp, sorghum stalk pulp and flax pulp, collecting the qualified mixed pulp after sieving, putting the intercepted large-particle raw materials into the pulper again to smash, repeating the steps of sieving, collecting and smashing again, adding alkaline bright yellow, lemon yellow and sun-fast yellow into the mixed pulp of the larch wood pulp, the sorghum stalk pulp and the flax pulp, uniformly mixing to enable the alkaline bright yellow, the lemon yellow and the sun-fast yellow to be blended into the mixed pulp to obtain coloring pulp, gradually adding chemimechanical pulp, retention aid, sizing agent and filler into the coloring pulp, and carry out stirring mixture that does not stop to thick liquids when adding, make the preliminary shaping of paper pulp, send fashioned paper pulp to the papermaking machine in and carry out the papermaking, obtain wet paper page, send wet paper page to the squeezer and squeeze the dehydration, put into the desiccator with the paper after the dehydration and carry out the drying, treat that the paper is totally dry after, take out the paper and obtain myopia prevention paper, this production method can the effectual contrast that reduces the colour, and reduce reflected light's intensity, make the paper more fine and smooth simultaneously, experience when promoting the use.

Drawings

FIG. 1 is a production flow chart of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.