Tissue Making
Tissue paper or simply tissue is a lightweight paper or light crêpe paper. Tissue can be made from virgin pulp or recycled paper pulp.
Processes
Tissue paper is produced on a paper machine with a single large steam heated drying cylinder (yankee dryer) fitted with a hot air hood. The raw material fed into the process is paper pulp. The yankee cylinder is sprayed with adhesives to make the paper stick. Creping is done by the yankee's doctor blade that is scraping the dry paper off the cylinder surface. The crinkle (crêping) is controlled by the strength of the adhesive, geometry of the doctor blade, speed difference between the yankee and final section of the paper machine, and paper pulp characteristics.
Our Products
We have a range of products that can help our Tissue Mill customers to solve their technical problems and to improve the quality of their tissue making process.
Processes
Tissue paper is produced on a paper machine with a single large steam heated drying cylinder (yankee dryer) fitted with a hot air hood. The raw material fed into the process is paper pulp. The yankee cylinder is sprayed with adhesives to make the paper stick. Creping is done by the yankee's doctor blade that is scraping the dry paper off the cylinder surface. The crinkle (crêping) is controlled by the strength of the adhesive, geometry of the doctor blade, speed difference between the yankee and final section of the paper machine, and paper pulp characteristics.
Our Products
We have a range of products that can help our Tissue Mill customers to solve their technical problems and to improve the quality of their tissue making process.
Dispersing Agent
Dispersing agents are water-soluble, and serve as outstanding formation aids in tissue-making processes. They also improve sheet formation in thin papers and in the top layer of paper board products; and they produce very even paper without pinholes, while improving opacity, brightness, lubricity, and printability.
Wet Strength Chemicals
Certain kinds of paper such as tissue and liner board are required to retain their strength after complete rewetting. This is done by addition of wet strength resins during production.Wet Strength Agents can improve wet strength without reducing absorbency of paper, increase the tear strength properties of paper, improve abrasion resistance, and improve retention of fillers and fines. It also assists in the improvement of drainage, drying, dry strength and formation characteristics of the end product, and may be employed as a replacement for urea-formaldehyde and melamine-formaldehyde wet-strength resins.
Tissue Softener
Tissue and toweling manufacturers add debonders to the finish of the wet end processes to impart bulk softness by disruption of the interfiber hydrogen bonds, and to develop surface softness through the presence of the fatty alkyl groups contained within them. Previously, softening was primarily accomplished by mechanical methods, but the current trend for premium tissue includes a combination of mechanical and chemical processes.Release Agents
Non-ionic dimethyl silicone fluid emulsion is a stable, water-thinned emulsion widely used as a release agent for tissue products. It provides excellent lubricity and release characteristics in Yankee dryer surface.Internal Dry Strength Agent
Strength additives are critical components for manufacturing of board and tissue. They provide not only the required strength to paper products, but can also improve machine productivity and process efficiency.IDS Agents improve the tensile strength and burst factors of paper, even in finishes using mechanical and thermo-mechanical pulps. They enhance fiber-fine and fiber-fiber interactions in the sheet, which improves inter-layer bonding strength within the produced sheets.