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CN-117364522-B - Processing technology of original pulp natural color toilet paper

CN117364522BCN 117364522 BCN117364522 BCN 117364522BCN-117364522-B

Abstract

The invention relates to the technical field of toilet paper processing, in particular to a processing technology of original pulp natural color toilet paper, which comprises the following steps of firstly selecting a bacterium capable of producing cellulose; culturing the bacteria in a proper culture medium, controlling the conditions of temperature, humidity, illumination and the like to enable the bacteria to be rapidly propagated and generate a large amount of cellulose, collecting, washing and drying the generated bacterial fibers through mechanical equipment to obtain pure bacterial fibers, pulping the fibers by mixing with water, forming paper through a paper machine, and finally obtaining the natural-color toilet paper through cutting, rewinding and packaging. The invention can obviously improve the quality and performance of toilet paper, improve the production efficiency and has obvious innovation and practical value.

Inventors

  • ZHENG JIANTUAN
  • ZHENG GUOLIANG
  • ZHENG HUILING

Assignees

  • 福建省尤溪永丰茂纸业有限公司

Dates

Publication Date
20260505
Application Date
20231020

Claims (6)

  1. 1. The processing technology of the original pulp natural color toilet paper is characterized by comprising the following steps: Firstly, selecting a bacterium capable of producing cellulose; culturing the bacteria in a proper culture medium, and controlling the temperature, the humidity and the illumination condition to make the bacteria rapidly reproduce and produce a large amount of cellulose; collecting, washing and drying the generated bacterial fibers through mechanical equipment to obtain pure bacterial fibers; pulping the fiber mixture with water; forming paper by a paper machine, cutting, rewinding and packaging to obtain the natural-color toilet paper; in the bacterial culture process, the temperature is regulated to 30-37 ℃ by regulating culture conditions, the humidity is 60-90%, the illumination is 1000-3000 lux, and the pH value is 6-8, so that the growth environment of bacteria is optimized, and the yield of cellulose is improved by 10-50%; in the beating process, a stirring mode with high shearing force is selected, and the stirring frequency is 200-500 times per minute, so that fibers are better dispersed in water, and the uniformity and softness of the toilet paper are improved by 10% -30%; in the pulping process, 1% -10% of reinforcing agent polyvinyl alcohol and 0.5% -5% of softening agent are added according to the need, so that the tensile strength of the natural-color toilet paper is improved by 10% -30% and the softness of the natural-color toilet paper is improved by 10% -50%; The paper forming process comprises wet paper forming and dry paper forming, wherein when the wet paper forming is carried out, the thickness of the toilet paper is controlled to be 0.1-0.5 millimeter and the density is controlled to be 0.1-0.5 gram/cubic centimeter by adjusting the speed of a paper machine to be 10-50 meters/minute and the pressure to be 0.1-0.5 megapascal, and when the dry paper forming is carried out, the drying temperature is adjusted to be 80-120 ℃ and the time is 10-30 minutes, so that the production efficiency is improved by 20% -80%.
  2. 2. The process for manufacturing a raw pulp natural color toilet paper according to claim 1, wherein the heat resistance of cellulose is improved by 10% -50% by adding 0.1-1 g of calcium sulfate per liter of culture medium by adding different nutrients to change the physical and chemical properties of cellulose when bacteria are cultured.
  3. 3. The process for producing a raw pulp natural color toilet paper according to claim 1, wherein the specific steps of collecting bacterial fibers are as follows: firstly, filtering a culture medium by using a microporous filter membrane with the diameter of 0.22 microns; separating the bacterial fiber from the culture medium by centrifugation at 5000-10000 rpm or stirring at 200-400 times per minute; finally, the impurities in the culture medium are removed by washing.
  4. 4. The process for manufacturing the raw pulp natural color toilet paper according to claim 1, wherein in the cutting process, the cutting size of the cutting machine is adjusted to be 10-20 cm and the speed of 100-300 times/min according to market demands and packaging specifications, in the rewinding process, the speed of the rewinding machine is adjusted to be 10-30 m/min and the pressure of 0.1-0.5 mpa so as to achieve ideal winding degree, the packaging process comprises manual packaging and automatic packaging, the automatic packaging can improve the production efficiency by 50% -200%, the labor intensity is reduced by 50% -80%, and the manual packaging can improve the packaging flexibility and individuality, and the toilet paper with special size and style is customized according to consumer demands.
  5. 5. The process for manufacturing a raw color toilet paper according to claim 1, wherein the antibacterial agent is added during the pulping process to improve the antibacterial property of the toilet paper, wherein the antibacterial agent is 0.1-1 g/l of silver acetate.
  6. 6. The process for manufacturing the raw pulp natural color toilet paper according to claim 1, wherein the packaging process is to use a full-biodegradable material for packaging, so that the packaging material has good environmental protection performance.

Description

Processing technology of original pulp natural color toilet paper Technical Field The invention relates to the technical field of toilet paper processing, in particular to a processing technology of original pulp natural color toilet paper. Background The invention relates to a processing technology of original pulp natural color toilet paper, in particular to a processing technology for improving the quality and the production efficiency of the toilet paper by adjusting the bacterial culture condition, optimizing the pulping process, selecting proper paper forming and packaging processes, adding an antibacterial agent, using a shaftless paper machine and the like. At present, the production of toilet paper generally involves the steps of pulp preparation, beating, paper forming, cutting, rewinding and packaging, however, the traditional production process has some problems, for example, in the pulp preparation process, the conventional fiber source and extraction mode may cause unstable cellulose quality, influence the subsequent production steps and the performance of the toilet paper, besides, the seasoning and operation mode in the beating process also influence the physical properties of the toilet paper, such as tensile strength, softness and the like, and moreover, the selection of the paper forming and packaging process has important influence on the quality and the production efficiency of the toilet paper, and the existing method often cannot achieve both the production efficiency and the product performance. More importantly, the antibacterial property and comfort of toilet paper as a product directly contacting human skin are important factors of attention of users, but the conventional toilet paper production process often neglects the optimization of the two aspects. Therefore, the existing toilet paper production process still needs to be improved in aspects of pulp preparation, pulping, paper forming, cutting, rewinding, packaging, antibacterial property, comfort and the like, and the invention aims to provide a new processing process of primary pulp natural color toilet paper so as to solve the problems. Disclosure of Invention Based on the above purpose, the invention provides a processing technology of the original pulp natural color toilet paper. A processing technology of original pulp natural color toilet paper comprises the following steps: firstly, selecting a bacterium capable of producing cellulose; culturing the bacteria in a proper culture medium, and controlling the conditions of temperature, humidity, illumination and the like to enable the bacteria to rapidly reproduce and produce a large amount of cellulose; collecting, washing and drying the generated bacterial fibers through mechanical equipment to obtain pure bacterial fibers; pulping the fibers by mixing with water; and then forming paper by a paper machine, cutting, rewinding and packaging to obtain the natural-color toilet paper. Further, when the bacteria are cultured, the physical and chemical properties of cellulose are changed by adding different nutrients, and the heat resistance of cellulose is improved by 10% -50% by adding 0.1-1 g of calcium sulfate to each liter of culture medium. Further, the method comprises the specific steps of filtering the culture medium by using a microporous filter membrane with the diameter of 0.22 microns, separating the bacterial fiber from the culture medium by using a centrifugal speed of 5000-10000rpm or a stirring frequency of 200-400 times per minute, and finally removing impurities in the culture medium by washing. Further, during the pulping process, 1% -10% of reinforcing agent (such as polyvinyl alcohol) and 0.5% -5% of softening agent (such as glycerin) are added according to the requirement, so that the tensile strength of the natural-color toilet paper is improved by 10% -30% and the softness is improved by 10% -50%. Further, the paper forming process includes wet paper forming and dry paper forming, wherein when the wet paper forming is performed, the thickness of the toilet paper is controlled to be 0.1-0.5 mm and the density is controlled to be 0.1-0.5 g/cc by adjusting the speed of a paper machine to be 10-50 m/min and the pressure to be 0.1-0.5 mpa, and when the dry paper forming is performed, the drying temperature is adjusted to be 80-120 ℃ and the time is 10-30 min, so that the ideal drying effect is achieved, and the production efficiency can be improved by 20% -80%. Further, in the cutting process, the cutting size of the cutting machine can be adjusted to be 10-20 cm and the speed of 100-300 times/min according to market demands and packaging specifications, in the rewinding process, the ideal tightness of the rewinding machine can be achieved by adjusting the speed of 10-30 m/min and the pressure of 0.1-0.5 megapascals, such as the inner diameter of a winding drum of 3-5 cm and the outer diameter of 7-10 cm, the packaging process comprises manual packaging and