Hygienic Papers

Tube Winding. Mainly dextrin adhesives are used and/or plasticized homopoly-meric poly(vinyl acetate) emulsions, but glutin glues are also used in special cases. 

Pick-up adhesives bond the tissue to the Kraft paper tube. Depending on the machine systems the following adhesives are used If the adhesive is applied directly to the tube by a slice (machine speed up to 400 m/min), aqueous colloidal solution systems at room temperature are normally used. If the adhesive is applied directly to the tube by a nozzle (machine speed up to 450 m/min), aqueous polyol-based adhesives are often used at room temperature. 

When the adhesive is applied by a slice to the application roller, which transfers the glue to the tube (machine speed up to 650 m/min), hot-melt adhesives are used at 60-80 °C. 

For high speed machines (up to 850 m/min), in which the adhesive is applied directly as a strip by means of a nozzle (temperature of the nozzle 80 °C), aqueous colloidal solution systems are used. 

Laminating Adhesives. Aqueous adhesives based on cellulose or poly(vinyl alcohol) for the ply lamination of tissue papers must give clean machinability, good initial tack, and reliable bonding strength of the tissue laminates. 

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These products are used on a number of grades hygiene papers, some liquid packaging grades, wall paper base, sack grades, etc. 

Moist pulp, papers with an antimicrobial finish, hygienic papers (e.g. paper towels) and mould resistant packaging material (e.g. soap wrappers) are produced with the addition of non-volatile microbicides which are virtually insoluble in water, so that good retention is guaranteed. Water soluble microbicides can be applied together with size solutions and coating mixes. Proposals are 2-phenyl-phenol and Dichlorophen (III.5.4.1 and III.5.7.3) and carbamates (III.9). 

The paper product consumption is the core of the chain. After utilization of a paper product by the consumer the paper product becomes wastepaper or postconsumer paper which is a quaternary fjtoresoMrce.Wastepapers from newsprint, books, and packaging materials can be collected and recycled. However, some of the paper products cannot be recovered for recycling. Hygienic papers such as toilet papers are disposed in toilets or papers for technical applications are long-term bonded in a technical product. Around 20% of wastepaper is not available for recycling regarding Ref. 67. 

Four processing steps for the production of hygienic papers, (e.g. toilet paper, kitchen rolls) involve the use of adhesives ... 

Paper grades that contain pulp produced by mechanical or chemimechanical processes are referred to as wood-containing papers. Mechanical pulps are mainly used in short-Hfe printing papers, hygienic papers and board. 

Utilization rates for different countries should not be compared without further comment. It is important to know the structure of the production program of the different national paper industries in the main product categories of packaging papers and board, graphic papers, household and hygiene papers as well as specialty papers because the utilization rates for these product segments differ significantly. 

The amount of polyamide-epichlorohydrin resin required in hygienic paper production is between 0.1 and 4% dry substance, calculated on the paper. These... 

Crepe paper is a single-layered, highly absorbent hygienic paper made from groundwood and/or secondary fibers. The basis weight is > 27 g m . The most important uses are toilet paper, paper handkerchiefs, and cleaning rolls. 

Synthetic wet-strength additives are employed primarily to impart strength to paper when it is wetted. These additives are used during the production of many different paper grades hygiene papers, liquid packaging, labels, coffee filter, tea bag, map paper, currency paper, wall paper, sack grades, carrier board (lettuce box, raisin tray, paper plates] etc. [17, 23]. 

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