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Konjak gulcomannan blind people learn-to-read card and preparation method thereof

A technology of konjac glucomannan and blind people, which is applied in the direction of instruments, educational appliances, teaching aids, etc., can solve problems such as easy aging, small application range, and health threats, and achieve excellent material properties, large application potential, and good stability Effect

Inactive Publication Date: 2018-02-23
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Literacy card is a common teaching tool, which is convenient for literacy. There are often words or pictures showing words on the card. Blind people cannot perceive things visually, and can only perceive things through hearing and touch in daily life. It causes a lot of inconvenience, and even poses a great threat to their own health. For example, items such as medicines, blind people cannot obtain relevant drug information through hearing, let alone directly touch the medicines with their hands, and can only touch the medicine marking card. Read relevant drug information. However, the materials currently used for Braille marking are intricate and mostly plastic in nature. They will age for a long time and are difficult to degrade. In addition, it is difficult for blind people to obtain information, and they need to be touched repeatedly to obtain relevant information. information, which poses a threat to their physical and mental health
[0003] Application No. 99203092.7 utility model patent "literacy card for the blind" (application date: 1992.02.01), introduced a kind of literacy card for the blind based on a small computer phonetic literacy machine, because of the addition of electronic equipment, it is limited to indoor and other environments It is more suitable for use in places, and the cost of this type of literacy card is high, it is not easy to combine with other materials, its application range is small, and the effect is poor
[0004] The invention patent "A Note for the Blind" with the application number of 201510237422.5 (application date: 2015.05.10) introduces a sticky note for the blind based on adhesive tape and bumps, which solves the barriers for blind people to obtain information to a certain extent , but the materials of its tapes and bumps are mostly plastic polymers, which are easy to age, and there are potential safety problems for blind people to touch for a long time, and these materials are not biodegradable and will pollute the environment

Method used

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  • Konjak gulcomannan blind people learn-to-read card and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1, a kind of preparation method of konjac glucomannan braille card, comprises the following steps:

[0020] (1) Preparation of composite sol solution: Take 5g pullulan polysaccharide and add it to 200mL distilled water, stir and dissolve at 60°C to make a pullulan polysaccharide aqueous solution; take konjac glucomannan, edible gelatin, glycerin and add In the pullulan polysaccharide aqueous solution, the weight percentages of each raw material and water are: konjac glucomannan 4%, edible gelatin 4%, glycerin 0.3%, stir for 1h; then add 3g calcium carbonate, 4g astragalus polysaccharide, mix and stir 2h, to obtain the sol solution; configure a sodium carbonate solution with a pH of 10, mix the sodium carbonate solution with the sol solution in a ratio of 0.6:100 according to the weight ratio of the sol solution:sodium carbonate solution, and stir to obtain a composite sol solution;

[0021] (2) Preparation of pigment solution: take 15g of natural pigment, add...

Embodiment 2

[0025] Embodiment 2, a kind of preparation method of konjac glucomannan braille card, comprises the following steps:

[0026] (1) Preparation of composite sol solution: Take 5-8g pullulan polysaccharide and add it into 250mL distilled water, stir and dissolve at 62°C to make pullulan polysaccharide aqueous solution; take konjac glucomannan, edible gelatin, Glycerin is added to the pullulan polysaccharide aqueous solution, and the weight percentages of each raw material and water are 4.5% of konjac glucomannan, 5% of edible gelatin, and 0.4% of glycerin, and stir for 1.5h; then add 3.5g of calcium carbonate, 5g of astragalus polysaccharide , mixed and stirred for 2.5h to obtain the sol solution; configuration pH is 11 sodium carbonate solution, according to the sol solution: the weight ratio of the sodium carbonate solution is 0.6: 100 ratio, the sodium carbonate solution and the sol solution are mixed, stirred and mixed to obtain Composite sol solution;

[0027] (2) Preparati...

Embodiment 3

[0031] Embodiment 3, a kind of preparation method of konjac glucomannan braille card, comprises the following steps:

[0032] (1) Preparation of composite sol solution: Take 8g of pullulan polysaccharide and add it to 300mL distilled water, stir and dissolve at 65°C to make a pullulan polysaccharide aqueous solution; take konjac glucomannan, edible gelatin, and glycerin and add In the pullulan polysaccharide aqueous solution, the weight percentages of each raw material and water are respectively 5% konjac glucomannan, 6% edible gelatin, 0.5% glycerin, and stir for 2h; then add 4g calcium carbonate, 6g astragalus polysaccharide, and mix and stir for 3h , to obtain the sol solution; configuration pH is 12 sodium carbonate solution, according to the sol solution: the weight ratio of the sodium carbonate solution is 0.6: 100 ratio, the sodium carbonate solution and the sol solution are mixed, stirred and evenly mixed to obtain the composite sol solution;

[0033] (2) Preparation o...

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Abstract

The invention relates to a konjak gulcomannan blind people learn-to-read card and a preparation method thereof. The preparation method of the konjak gulcomannan blind people learn-to-read card comprises the following steps of preparing compound collosol liquid, preparing a pigment solution, preparing a plastomer base solution, molding initial products and drying. Konjak gulcomannan, which has multiple properties such as hydrophily, thickening property and stability, is taken as a main ingredient, the freezing and malleableizing properties of the konjak gulcomannan are utilized, and plural gelis taken as a matrix so as to prepare a safe environment-friendly konjak gulcomannan blind people learn-to-read card which is good in plasticity, high in strength, good in stability, strong in antibacterial property, low in cost and degradable. The problems that the learn-to-read cards used by blind people at present are mostly prepared from plastic polymers as materials, are easy to age and havepotential safety hazards when the blind people touch for a long time are solved.

Description

technical field [0001] The invention relates to a literacy card for the blind and a preparation method thereof, in particular to a konjac glucomannan literacy card for the blind and a preparation method thereof, belonging to the technical field of supplies for the blind. Background technique [0002] Literacy card is a common teaching tool, which is convenient for literacy. There are often words or pictures showing words on the card. Blind people cannot perceive things visually, and can only perceive things through hearing and touch in daily life. It causes a lot of inconvenience, and even poses a great threat to their own health. For example, items such as medicines, blind people cannot obtain relevant drug information through hearing, let alone directly touch the medicines with their hands, and can only touch the medicine marking card. Read relevant drug information. However, the materials currently used for Braille marking are intricate and mostly plastic in nature. They ...

Claims

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Application Information

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IPC IPC(8): C08L5/00C08L89/00C08K5/053C08K3/26G09B21/00
CPCC08K2003/265C08L5/00C08L89/00C08L2205/025C08L2205/035G09B21/003C08K5/053C08K3/26
Inventor 庞杰倪永升林婉媚吴春华杜雨王林穆若郡吴佳煜龚静妮王维海洪馨
Owner FUJIAN AGRI & FORESTRY UNIV
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