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Method for preparing corrugated base paper from apple juice waste

A technology of corrugated base paper and waste, which is applied in the field of corrugated base paper prepared from apple juice waste, which can solve the problems of environmental pollution and waste of resources, and achieve the effects of good strength, sufficient raw materials and great market potential

Inactive Publication Date: 2013-12-04
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this invention is to provide a method for preparing corrugated base paper from apple juice waste, which solves the problem that 70% of apple juice waste is treated as garbage, which pollutes the environment and wastes resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Step 1, wash and fade the wet apple juice waste, remove the sugar, and make a fiber slurry with a mass concentration of 1.0%, and then use mechanical methods to remove the fruit shells, grains, and fruit stems, then wash, dehydrate and concentrate to the mass concentration 10%, and then carry out step-by-step mild thawing, grinding and splitting treatment. The grinding and splitting treatment is processed by a double-screw roller refiner with a refining gap of 0.3mm to obtain apple juice with a length of 0.5-1.5mm and discard it. material fiber pulp;

[0029] Step 2, the apple juice waste fiber slurry obtained in step 1 is mixed with the unbleached softwood pulp fiber slurry with a length of 2.0-4.0mm that has been refined by an intermittent valley beater at a mass ratio of 8:2, and then added Cationic polyacrylamide, rosin gum, aluminum sulfate and antifungal agent, wherein the addition of cationic polyacrylamide is 1.5% of the total amount of apple juice waste fiber s...

Embodiment 2

[0033] Step 1, wash and fade the air-dried apple juice waste soaked for more than 2 hours, remove the sugar, and make a fiber slurry with a mass concentration of 0.8%, and then use mechanical methods to remove the fruit shells, grains, and fruit stems, then wash and dehydrate Concentrate to a mass concentration of 5%, and then carry out step-by-step mild thawing, grinding and splitting treatment. The grinding and splitting treatment is processed by a double-screw roller refiner with a refining gap of 0.5mm to obtain a length of 0.5 to 1.5 mm apple juice waste fiber slurry;

[0034] Step 2, mix the apple juice waste fiber slurry obtained in step 1 with the unbleached broad-leaved wood fiber slurry with a length of 1.2-2.0 mm that has been refined by a batch valley beater at a mass ratio of 7:3, and then add cations Polyacrylamide, rosin gum, aluminum sulfate and antifungal agent, wherein the amount of cationic polyacrylamide added is 1.8% of the total amount of apple juice wast...

Embodiment 3

[0038] Step 1, wash and fade the air-dried apple juice waste soaked for more than 2 hours, remove the sugar, and make a fiber slurry with a mass concentration of 1.2%, and then use mechanical methods to remove the fruit shells, grains, and fruit stems, then wash and dehydrate Concentrate to a mass concentration of 15%, and then carry out step-by-step mild thawing, grinding and splitting treatment. The grinding and splitting treatment is processed by a double-screw roller refiner with a refining gap of 0.4mm to obtain a length of 0.5 to 1.5 mm apple juice waste fiber slurry;

[0039] Step 2, mix the apple juice waste fiber slurry obtained in step 1 with the wheat straw pulp fiber slurry with a length of 1.0 to 2.0 mm refined by a batch valley beater at a mass ratio of 6.5:3.5, and then add cationic polypropylene Amide, rosin gum, aluminum sulfate and antifungal agent, wherein the addition of cationic polyacrylamide is 2.0% of the total amount of apple juice waste fiber slurry a...

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Abstract

A method for preparing corrugated base paper from apple juice waste comprises the following specific steps: 1, washing and fading the apple juice waste, removing saccharide to obtain fiber slurry with the mass concentration of 0.8-1.2%, removing impurities, cleaning, dewatering and concentrating the fiber slurry till the mass concentration is 5-15%, slightly defibering by several times, and defibrinating and devillicating to obtain the apple juice waste fiber slurry; 2, mixing the apple juice waste fiber slurry obtained in the step 1 with defibrinated plant fiber, adding chemical additives, adding water for diluting the mixture into slurry with the mass concentration of 0.6-0.8%, and finally papermaking by a wet forming method to obtain the corrugated base paper. In combination with characteristics of the fiber morphology and chemical components of the apple juice waste, the apple juice waste is used for preparing the corrugated base paper, so that the utilization problem of the apple juice waste is solved and papermaking raw materials are saved; and the prepared corrugated base paper is high in surface flatness, high in strength, water-proof, damp-proof and mildew-proof.

Description

technical field [0001] The invention belongs to the intersection field of papermaking industry and food industry, and relates to a method for preparing corrugated base paper from apple juice waste. Background technique [0002] Apple juice waste is a by-product of the apple juice processing industry. It is the leftovers left over from the production of canned apples, fruit juice, jam and fruit wine. The amount left over is very large, accounting for 25% to 30% of the weight of fresh fruit. There are currently more than 50 apple juice concentrate manufacturers in my country, with nearly 70 production lines, using 7 million tons of apple raw materials every year, and producing more than 2 million tons of concentrated juice. In 2012, the national apple juice export volume was 591,600 tons, accounting for about 70% of the world's trade volume of concentrated apple juice, with a total export value of 946 million US dollars, becoming the world's largest producer of concentrated ap...

Claims

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Application Information

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IPC IPC(8): D21C5/00D21B1/02D21H11/00D21H21/18D21H21/36D21H21/16D21H21/14
Inventor 党育红李鸿魁李佩燚杜敏
Owner SHAANXI UNIV OF SCI & TECH
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