Bleaching promotion
Using xylanase to promote the bleaching of kraft pulp ECF and TCF can save bleaching agents and/or improve the whiteness of the pulp after bleaching.
Fiber modification and deinking
Amylase and cellulase are used for fiber modification and deinking, which can promote ink removal and increase the whiteness of deinked pulp; improve water drainage and increase the softness of toilet paper.
Lignin modification/wastewater treatment
Laccase is used for lignin modification and wastewater treatment, which can increase the wet strength of mechanical pulp slurry and reduce the chromaticity and BOD/COD value of wastewater.
Hydrogen pero xide control
Catalase can monitor and optimize the amount of hydroge n peroxide used in bleaching. After bleaching, adding catalase can degrade residual hydrog en peroxide.
Resin barrier control
In the process of papermaking with mechanical pulp, the use of lipase for resin barrier control can increase paper strength, reduce paper defects, shorten downtime and reduce the number of cleanings of paper blankets and rollers, thereby improving paper quality and increasing production economic benefits.
Starch modification
Amylase enables paper mills to modify the original starch on site for surface coating and sizing, which is more economical and practical than buying commercial modified starch directly.
Market Prospects of Pulp and Paper Enzyme Industry
Amylase: It is widely used in the fields of deinking, coating, cleaning and sewage in the production of cardboard. At the same time, the printing industry's requirements for paper smoothness have also increased the market demand for amylase.
Cellulase: Cellulase is widely used to optimize fiber, help improve paper machine performance and reduce operational risks. With the popularization and application of cellulase, the use of strong alkali chemicals will gradually decrease.
Lipase: Lipase is widely used in the degreasing process of sulfite pulping. By removing the resin in the pulp, the effect of resin deposition on paper quality is reduced.
Xylanase: Kraft pulp production has special requirements for whiteness, and Kraft pulping reduces the use of chemicals and provides an opportunity for the development of the xylanase industry.
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