Application of antiseptic and antiseptic in paper industry
In today’s paper industry, due to the increasing shortage of available resources, the amount of waste paper recycled is increasing, and the recycling of white water systems is also increasing, which will increase the production of pulp; and neutral sizing technology is gradually being promoted and applied. In the alkaline system, the reproduction speed of the microorganisms that cause the pulp is much faster than in the acidic system (PH4.5~6.5). In the process of pulping and papermaking, due to the rich nutrients (proteins, carbohydrates, hydrolyzed sugars, etc.) in the slurry for the growth of bacteria, bacteria will multiply rapidly under appropriate temperature and humidity conditions. In the various equipment and piping systems through which the paper and white water flow, if the machine is not shut down frequently to clean and keep it clean, it is easy to cause various bacteria to multiply and cause a large amount of sludge. If the pulp is mixed into the pulp of papermaking, it will cause paper breaks or voids and other paper diseases, which will increase the dustiness of the paper and increase the waste rate; in addition, if the pulp is combined with other organic and inorganic substances, it will form Mucilage deposits of sludge contaminate copper mesh and blankets, seriously affecting the output and quality of paper and the normal operation of production operations. Therefore, adequate attention should be paid to the anti-corrosion control in the production of the paper industry. In addition to cleaning during production, adding preservatives to pulp and coatings to inhibit or kill microorganisms is an effective measure to improve paper performance and ensure normal production.
The main function of preservatives is to ensure that materials do not spoil during use by killing bacteria or making them lose their ability to grow and reproduce. Preservatives can denature the protein in microorganisms, eliminate cell activity and cause cell death; preservatives can also mutate the genetic genes of microorganisms or interfere with the activity of enzymes in the cells to make it difficult to reproduce and grow, thereby inhibiting microorganisms effect. The bactericidal and antibacterial effects of preservatives are often related to their concentration and time of action. For the same preservative, a high concentration or a long action time can kill bacteria, while a low concentration or a short action time can only have an inhibitory effect. In addition, the same preservative has completely different effects on different microorganisms. A preservative that can kill a certain microorganism may only have an inhibitory effect on another microorganism.
