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Compound enzyme preparation for promoting fiber modification through pulping novel household paper and preparation method and application thereof

A compound enzyme preparation and tissue paper technology, applied in the field of papermaking, can solve the problems of increasing the number of paper machine breakages, prolonging the enzyme reaction time, and affecting product quality, and achieving the goals of reducing the loss of fine fibers, increasing the volume, and increasing the tensile force Effect

Active Publication Date: 2016-06-01
南宁远石生物科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the prior art beating enzyme has the following defects in the application: 1. In the application process, holes are very likely to occur, which increases the number of paper machine breakages; 2. When the pulp is stored for a long time, the enzyme reaction time is prolonged. Timely adjustment of beating power consumption will cause fluctuations in beating degree and affect the operation of the paper machine; 3. Coarse texture and rough hand feeling of paper affect product quality

Method used

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  • Compound enzyme preparation for promoting fiber modification through pulping novel household paper and preparation method and application thereof
  • Compound enzyme preparation for promoting fiber modification through pulping novel household paper and preparation method and application thereof
  • Compound enzyme preparation for promoting fiber modification through pulping novel household paper and preparation method and application thereof

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preparation example Construction

[0060] The applicant also proposed a method for preparing a novel composite enzyme preparation for beating household paper to promote fiber modification, which specifically includes the following steps:

[0061] Step (1): pre-treating the raw material enzyme preparation neutral pectinase, neutral xylanase and neutral cellulase respectively;

[0062] Step (2): 25% to 40% of neutral pectinase, 20% to 35% of neutral xylanase and 15% to 40% of neutral cellulase are mixed evenly in a mixer ;

[0063] Step (3): Then add an appropriate amount of preservative and sterilize through a diatomaceous earth filter, and then measure the enzyme activity to prepare a new composite enzyme preparation for beating household paper to promote fiber modification.

[0064] Application of the above-mentioned compound enzyme preparation in pulping of household paper. In the pulping process of tissue paper raw material fibers, the compound enzyme preparation is added at a constant speed by a metering ...

Embodiment 1

[0072] The specific formula of the compound enzyme preparation is as follows, and the contents are components by weight percentage: 40% of neutral pectinase, 30% of neutral xylanase, and 30% of neutral cellulase. The preparation method is as follows: the raw enzyme preparations are subjected to pretreatment respectively, and then mixed evenly in a mixer according to the proportion, then an appropriate amount of preservative is added, and bacteria are sterilized through a diatomite filter, and then the enzyme activity is measured and quantitatively packaged to become a product.

[0073] Production test in a household paper enterprise in Shantou, Guangdong Province, from December 4th to January 3rd, 2014, a total of 31 days, 50 tons of paper towels were produced every day, 1.2 tons of raw material fibers were pulped by a hydraulic pulper, and 150 enzymes were added. grams, the amount of enzyme added is 0.125‰. The production data is shown in Table 1-3 below (based on 1.2 tons of...

Embodiment 2

[0081] The specific formula of the compound enzyme preparation is as follows, and the contents are components by weight percentage: 35% of neutral pectinase, 25% of neutral xylanase, and 40% of neutral cellulase. The preparation method is as follows: the raw enzyme preparations are subjected to pretreatment respectively, and then mixed evenly in a mixer according to the proportion, then an appropriate amount of preservative is added, and bacteria are sterilized through a diatomite filter, and then the enzyme activity is measured and quantitatively packaged to become a product.

[0082] In a household paper enterprise in Luohe, Henan Province, from October 8, 2015 to now, 60 tons of paper towels are produced every day, 2.2 tons of raw fiber are pulped in each tank of the hydraulic pulper, 300 grams of enzymes are added, and the amount of enzymes added is 0.136‰. The production data are shown in Tables 4 to 6 below (based on 1 ton of absolute dry pulp).

[0083] Table 4. Compari...

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Abstract

The invention discloses a compound enzyme preparation for promoting fiber modification through pulping novel household paper and a preparation method and application thereof. The compound enzyme preparation comprises, by mass, 70% of an alkaline pectic acid disintegrating compound enzyme, 2% of alkaline cellulase, 18% of alkaline xylanase and 10% of laccase. By adopting the technical scheme, in the process of degumming, consumption of bleaching liquid in the process of bleaching flax fibers is reduced by higher than 20%, consumption of caustic soda in the process of bleaching the flax fibers is reduced by higher than 40%, breaking strength of the flax fibers is increased by higher than 5%, fineness is increased by higher than 20%, elongation at break is increased by higher than 30%, the fibers are uniform in strength, and spinnability of the fibers is improved remarkably, so that economic benefit is increased, production cost is lowered, and COD is lowered by higher than 30%.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and in particular relates to a novel composite enzyme preparation for beating household paper to promote fiber modification, a preparation method and application thereof. Background technique [0002] At present, domestic household paper uses traditional technology, which is characterized by high energy consumption, increased paper tensile force needs to increase the amount of long fibers, pulp consumption is not less than 1.05, or even higher, and urgently needs energy-saving and high-quality products to solve the problem. Beating is a very important process in the papermaking process. The traditional beating process is a physical change. The changes in the fiber structure and colloidal properties of the pulp produced by the beating are all physical changes and do not cause chemical changes in the fibers or produce new ones. It is a substance that makes the fiber thin, making the fiber have ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N9/88C12N9/26C12N9/18C12N9/24C12N9/42D01C1/00
CPCC12N9/18C12N9/2408C12N9/2437C12N9/248C12N9/88C12Y301/01011C12Y302/01004C12Y302/01067C12Y402/02002D01C1/00
Inventor 程海泳郝志军庄冉
Owner 南宁远石生物科技有限公司
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