Pretreatment method of household paper pulp
A technology for pretreatment and household use, which is applied in the pretreatment of household paper and the field of pretreatment of household paper pulp by using biological enzymes. In order to achieve the effect of reducing energy consumption, reducing production cost and reducing raw material consumption, etc.
Active Publication Date: 2011-08-17
WEIANJIE CARE PROD CHINA CO LTD
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Problems solved by technology
[0003] With the improvement of people's living standards, consumers' requirements for the quality of household paper are also increasing. Paper with high strength, high bulkiness and good water absorption is more and more popular among consumers. Most of the existing production equipment and technologies are mutually restrictive, such as the bulkiness requirements, the existing technology mainly uses hot air drying to improve, its technology and process are very mature, but the energy consumption is very alarming, and cannot adapt to the current society's demand for reduction. Consumption of production requirements; and the use of beating enzymes to pretreat hardwood to improve the beating performance of hardwood experiments show that: after enzyme treatment, the tensile strength of the hand-made pulp pulp increased significantly, and the tearing degree remained basically unchanged
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Embodiment 1
[0033] Control the PH value of the pulping water to 7.0-7.8, and the temperature of the pulping water is in the range of 40-43°C. When the pulping water temperature is lower than 40°C, use the tail steam of the drying cylinder to heat the pulping water. 25% of the capacity is added to pulping water 2m 3 Into the low-consistency hydraulic pulper, add the liquid biological enzyme-subtilisin according to the amount of 0.75KG / ton dry pulp, start the pulping motor for 15 seconds, and press the ratio of imported softwood pulp: hardwood pulp = 11:89 Pulp boards are put in for disintegration, and the process from the completion of feeding the pulp boards to the unpulled pulp entering the refiner mouth ensures that the mixing time of biological enzymes and pulp is more than 30 minutes. Papermaking is carried out on an idler paper machine, and the main physical indicators of the paper sheets produced are compared with those of paper sheets without biological enzyme pretreatment as follo...
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The invention discloses a pretreatment method of household paper pulp, which comprises the following steps: controlling the pH value and the temperature value of water for pulping; adopting the mode that adding bio-enzyme for preprocessing at the pulp preparation primary period; and under the premise of ensuring bio-enzyme activity, fully utilizing the decomposing and the catalyzing actions of the bio-enzyme, to reach the purpose of improving the property of manufactured paper. The paper which is processed by the method has high strength, good bulk and good water absorption property, so that the consumption of raw materials is reduced, the production efficiency is improved, and the paper manufactured by the pulp can better meet the continuously raised use requirements of consumers and hasa very strong practical value.
Description
technical field [0001] The invention relates to a pretreatment method for household paper, in particular to a method for pretreating household paper pulp by using biological enzymes, and belongs to the technical field of household paper manufacture. Background technique [0002] In today's world where energy is increasingly tense and the ecological environment is increasingly damaged, how to better implement low-carbon production and reduce the felling of natural forests is an important research topic for the future development of the pulp and paper industry. Among them, the application and development of biological enzyme technology has opened up a new world for the pulp and paper industry to save energy, reduce consumption, and clean production. Biological enzymes are widely used in the paper industry, such as biodegradation of lignin, biopulping, biobleaching of pulp, biodeinking of waste paper, biological treatment of papermaking wastewater, and improvement of fiber prop...
Claims
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IPC IPC(8): D21B1/34D21C1/00
Inventor 张健
Owner WEIANJIE CARE PROD CHINA CO LTD