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Oil-proof paper and preparation method thereof

A technology of oil-proof paper and oil-proof agent, which is applied in the field of packaging paper and paper products, can solve problems such as poor oil-proof performance, and achieve the effects of reducing the degree of polymerization, low oxygen permeability, and improving antibacterial effect.

Inactive Publication Date: 2018-12-14
袁杰
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a kind of oil-proof paper and its preparation method in view of the problem of poor oil-proof performance of the current oil-proof paper raw materials

Method used

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  • Oil-proof paper and preparation method thereof

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preparation example Construction

[0029] A preparation method for greaseproof paper, comprising the steps of:

[0030] According to the number of parts by mass, take 3~6 parts of antibacterial active agent, 8~12 parts of sizing active agent, 30~40 parts of water, 0.3~0.7 part of glutaraldehyde, 2~3 parts of dispersant, and heat up to 40~50 Stir and mix for 30~40min at ℃ to get the mixed coating solution, take the mixed coating solution according to the coating amount of 6g / m 2 Coat it on kraft base paper, dry it at 80~90℃ for 175~200s, get the primary treatment paper, and then apply the oil repellant at 4g / m 2 The coating amount is coated on the surface of the primary treatment paper, and dried at 60~70°C for 150~170s to obtain the greaseproof paper.

Embodiment 1

[0032] Antibacterial active agent: Take chitosan and add acetic acid with a mass fraction of 0.5% at a mass ratio of 1:40 to obtain a mixed solution a. Take the mixed solution a at 20°C and add dropwise 1% yellow Raw gum aqueous solution, adjust the pH to 5, then add Tween-80 with 1% mass of mixed liquid a and nisin with 8% mass of mixed liquid a, stir and mix for 10 minutes, centrifuge, take the precipitate and dry it, and obtain the antibacterial active agent .

[0033] Anti-oil agent: (1) Take tapioca starch and add deionized water at a mass ratio of 1:9, stir and mix at 30°C and 300r / min for 20 minutes, then add 9% octenyl succinic anhydride of tapioca starch, stir and mix for 1 hour, adjust pH to 8, stirring and mixing for 1 hour, adjusting the pH to 6, filtering, taking the filter residue to dry, crushing through a 100-mesh sieve, and collecting the sieved particles;

[0034](2) Take the sieved particles and add silicon dioxide according to the mass ratio of 5:0.3:80, t...

Embodiment 2

[0041] Antibacterial active agent: Take chitosan and add acetic acid with a mass fraction of 0.5% at a mass ratio of 3:50 to obtain a mixed solution a. Take the mixed solution a at 25°C and add dropwise 1% yellow Raw gum aqueous solution, adjust the pH to 6, then add 3% Tween-80 and 15% nisin in the mixed solution a, stir and mix for 20 minutes, centrifuge, take the precipitate and dry it to obtain the antibacterial active agent .

[0042] Anti-oil agent: (1) Take tapioca starch and add deionized water at a mass ratio of 3:12, stir and mix for 30 minutes at 35°C and 300r / min, then add 12% octenyl succinic anhydride of tapioca starch, stir and mix for 3 hours, adjust pH to 8.5, stirring and mixing for 3 hours, adjusting the pH to 6.5, filtering, taking the filter residue to dry, crushing through a 100-mesh sieve, and collecting the sieved particles;

[0043] (2) Take the sieved particles and add silicon dioxide at a mass ratio of 8:0.5:100, then add deionized water, stir and m...

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Abstract

The invention discloses oil-proof paper and a preparation method thereof and belongs to the technical field of packaging paper products. The preparation method comprises the steps: adding chitosan andbiopolysaccharide xanthan gum to obtain an antibacterial active agent, wherein the antibacterial active agent plays a role in inhibiting the growth and propagation of bacteria and spores and forms anantibacterial layer on the surface of the oil-proof paper, so that the antibacterial effect of the oil-proof paper is improved; adding cassava starch, carrying out starch modification by using octenyl succinic anhydride under an alkaline condition, adding soybean protein isolates, and meanwhile, compounding a soybean protein isolate membrane with sodium alginate polysaccharide to form an oil-proof membrane due to the low oxygen permeability of the soybean protein isolate membrane under a low-humidity condition; and carrying out graft modification on hydrolyzed collagen by taking the hydrolyzed collagen as a raw material as well as styrene and butyl acrylate as modified monomers to form a gluing active agent, wherein the gluing active agent is used for blocking a part of grease from beingpermeated into base paper of kraft paper to form double oil-proof layers, so that the oil-proof performance is improved. By using the oil-proof paper, the problem of poor oil-proof property existing in a raw material of current oil-proof paper is solved.

Description

technical field [0001] The invention relates to the technical field of wrapping paper products, in particular to a greaseproof paper and a preparation method thereof. Background technique [0002] With the development of the food industry, there are more and more types of packaging paper. The more common ones are cake paper, candy paper, liner paper, bread paper, biscuit paper, and ice cream packaging paper. In food packaging paper, waterproof and oil-proof type Food wrapping paper is very popular. At present, when most manufacturers produce waterproof and oil-proof food packaging paper, they tend to use plastics as raw materials or add fluorine-based oil-repellent agents when making paper. Oil paper, both of which are high molecular polymers, has defects such as being difficult to biodegrade, not environmentally friendly, and poor oil resistance. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a grease-proof p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/14D21H19/82D21H21/14D21H21/36D21H21/16D21H21/08D21H23/22D21H25/06D21H27/10
CPCD21H19/14D21H19/82D21H21/08D21H21/14D21H21/16D21H21/36D21H23/22D21H25/06D21H27/10
Inventor 袁杰路芸卢星
Owner 袁杰
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