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Preparation method of greaseproof paper with rust prevention and water prevention

A technology of oil-proof paper and ammonia water, applied in papermaking, packaging paper, paper coating, etc., can solve the problems of poor waterproof and oil-proof, low surface gloss and flatness, etc., and achieve good anti-rust effect, good waterproof and oil-proof effect, The effect of good mechanical properties

Inactive Publication Date: 2018-04-27
SUZHOU FUZHONG PLASTIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, raw paper and cardboard without special processing have many congenital defects: such as low surface gloss and flatness, poor water and oil repellency, etc. The requirements are getting higher and higher, and ordinary paper is far from being able to meet these requirements

Method used

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  • Preparation method of greaseproof paper with rust prevention and water prevention

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A preparation method for antirust, waterproof and oilproof paper, comprising the following steps:

[0017] (1) Mix 2g of stearic acid, 1ml of ammonia water and 50ml of distilled water, heat to 65°C and stir for 2.5 hours;

[0018] (2) Cool down to room temperature, add 1g of sodium alginate, 1g of gum arabic, 1g of caprolactam and 5ml of glycerol, and stir for 30 minutes at a speed of 400r / min;

[0019] (3) Add 1g polytetrafluoroethylene, 1g chitosan, 0.2g sodium nitrite, 0.1g triethylenetetramine, 0.1g carbonamide, 0.2g benzyl salicylate and 5ml ethanol, and put it into the ultrasonic oscillator Perform ultrasonic oscillation for 20 minutes at an ultrasonic power of 300W;

[0020] (4) Vacuum degassing to remove air bubbles, and use a coating rod to evenly coat it on the wrapping paper with a coating amount of 1.5g / m 2 ;

[0021] (5) Put it in an electric constant temperature blast drying oven to dry for 30 minutes, then place it in a constant temperature and humidit...

Embodiment 2

[0023] A preparation method for antirust, waterproof and oilproof paper, comprising the following steps:

[0024] (1) Mix 3g of stearic acid, 1.5ml of ammonia water and 60ml of distilled water, heat to 70°C and stir for 2.5 hours;

[0025] (2) Cool down to room temperature, add 1.5g sodium alginate, 1.5g gum arabic, 1.5g caprolactam and 6ml glycerol, and stir for 35 minutes at a speed of 450r / min;

[0026] (3) Add 1.5g polytetrafluoroethylene, 1.5g chitosan, 0.25g sodium nitrite, 0.2g triethylenetetramine, 0.15g carbonamide, 0.3g benzyl salicylate and 6ml ethanol, put into ultrasonic vibration Ultrasonic oscillation was performed for 25 minutes at an ultrasonic power of 350W in the instrument;

[0027] (4) Vacuum degassing to remove air bubbles, and use a coating rod to evenly coat it on the wrapping paper with a coating weight of 1.6g / m 2 ;

[0028] (5) Put it in an electric heating constant temperature blast drying oven for 35 minutes and then place it in a constant tempe...

Embodiment 3

[0030] A preparation method for antirust, waterproof and oilproof paper, comprising the following steps:

[0031] (1) Mix 3.5g stearic acid, 1.5ml ammonia water and 75ml distilled water, heat to 70°C and stir for 2.75 hours;

[0032] (2) Cool down to room temperature, add 2g sodium alginate, 1.5g gum arabic, 1.5g caprolactam and 6.5ml glycerol, and stir for 40 minutes at a speed of 500r / min;

[0033] (3) Add 1.5g polytetrafluoroethylene, 1.5g chitosan, 0.25g sodium nitrite, 0.2g triethylenetetramine, 0.15g carbonamide, 0.35g benzyl salicylate and 7.5ml ethanol, put into ultrasonic Perform ultrasonic oscillation for 30 minutes at an ultrasonic power of 350W in an oscillator;

[0034] (4) Vacuum degassing to remove air bubbles, and use a coating rod to evenly coat it on the wrapping paper with a coating weight of 1.6g / m 2 ;

[0035] (5) Put it in an electric heating constant temperature blast drying oven to dry for 40 minutes, then place it in a constant temperature and humid...

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Abstract

The invention provides a preparation method of a piece of greaseproof paper with rust prevention and water prevention. The method comprises the following steps: (1) stearic acid, ammoniacal liquor anddistilled water are mixed, and the temperature is heated to 65-75 DEG C with stirring; (2) the temperature is reduced to a room temperature, and sodium alginate, Arabic gum, caprolactam and glycerolare added with stirring; (3) polytetrafluoroethylene, chitosan, sodium nitrite, triethylenetetramine, urea, benzyl salicylate and ethanol are added into an ultrasonic vibration instrument in order tocarry out ultrasonic vibration; (4) vacuum degassing is carried out in order to remove bubbles, and a spreading rod is used for uniformly coating the materials on a piece of packing paper; (5) the paper is placed in an electrothermal constant temperature blast drying box for drying, and the paper is placed in an constant temperature and humidity box for 24-26 hours in order to carry out pre-humidification treatment. The greaseproof paper with rust prevention and water prevention has good antirust effects, good water preventing and oil preventing effects, and good mechanical properties.

Description

technical field [0001] The invention relates to a preparation method of rust-proof, waterproof and oil-proof paper. Background technique [0002] In history, due to the limitation of raw materials and technology, paper used to be a very valuable material. Later, with the continuous development of modern papermaking technology, the price of paper became lower and lower, and it was gradually used as a packaging material. use. As a packaging material, paper has advantages that other packaging materials cannot match: a wide range of raw materials, low cost, easy cutting, simple process, light weight, easy transportation, good printing performance, non-toxic and harmless, and recyclable. On the other hand, raw paper and cardboard without special processing have many congenital defects: such as low surface gloss and flatness, poor water and oil repellency, etc. The requirements are getting higher and higher, and ordinary paper is far from being able to meet these requirements. ...

Claims

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Application Information

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IPC IPC(8): D21H19/14D21H19/22D21H25/06D21H21/14D21H21/16D21H21/18D21H27/10
Inventor 史闵新
Owner SUZHOU FUZHONG PLASTIC CO LTD
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