Abstract
The utilization of the solid tannery wastes as a promoting agent to improve paper sheet properties was investigated. Solid tannery wastes from pickled hide shavings are treated to remove acid and salts, and hydrolyzed at pH 10 by using potassium carbonate. The produced hydrolysable collagen (gelatin) was used as coating for paper sheets. The gelatin concentrations from 0.5–2.5 % were used as coating solution and its effect on thermal aging and mechanical properties was studied. A direct proportion between gelatin concentration and improvements of paper mechanical properties was observed. A kinetic study based on paper strength properties confirmed the stabilizating effect of gelatin on paper sheets. Paper sheets coated with 2.5 % gelatin solution were thermally aged at temperatures range between 100–200 °C for different time intervals from 1–6 h, and after that it was subjected to natural aging for two years. Gelatin coating improves the paper sheets mechanical properties and thermal stability.
Funding source: National Research Centre
Award Identifier / Grant number: P100118
Funding statement: The authors would like to express their gratitude to the National Research Centre, Egypt, for the financial support of the current work throughout the project number P100118.
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Conflict of interest: The authors declare no conflicts of interest.
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© 2018 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Biorefinery
- Improving the efficiency of enzymatic hydrolysis of Eucalyptus residues with a modified aqueous ammonia soaking method
- Chemical pulping
- Enhancement of eucalypt pulp yield through extended impregnation cooking
- Xyloglucan adsorption for measuring the specific surface area on various never-dried cellulose nanofibers
- Xyloglucan for estimating the surface area of cellulose fibers
- Mechanical pulping
- Validation of crill measurements in a high-yield pulp refining process for improved fines material control
- Bar force measurement in low consistency refining: the effect of plate pattern
- Paper technology
- The influence of bar width on bar forces and fibre shortening in low consistency pulp refining
- Density development in foam forming: wet pressing dynamics
- Paper physics
- Effect of softwood kraft fiber coarseness on formation and strength efficiency in twin-wire roll forming
- Phosphorescence and fluorescence of fibrillar cellulose films
- A three-dimensional numerical model for large strain compression of nanofibrillar cellulose foams
- Effect of machine speed on formation and strength efficiency in twin-wire roll forming of never-dried unbleached softwood kraft pulp
- The versatility of the Bristow absorption tester – a review
- Paper chemistry
- Optimizing the preparation conditions of amphoteric polyacrylamide as a strength additive for recycled paper
- Preparation of nanocomposite polypyrrole/cellulose nanocrystals for conductive paper
- Preparation and characterization of AKD sizing agent by “one-pot cooking”
- Thermal and natural aging of bagasse paper sheets coated with gelatin
- Coating
- Crack analysis of barrier coatings based on starch and starch-PVOH with and without plasticizer
- Packaging
- Effect of blank pre-conditioning humidity on the dimensional accuracy and rigidity of paperboard trays
- Environmental impact
- Biological treatment and ultrafiltration of woodchip pre-hydrolysis liquor from dissolving pulp mills
- Recycling
- Circular action treatment (CAT): a new strategy for mechanical treatment of old corrugated container I – effects of control parameters on paper strength
Articles in the same Issue
- Frontmatter
- Biorefinery
- Improving the efficiency of enzymatic hydrolysis of Eucalyptus residues with a modified aqueous ammonia soaking method
- Chemical pulping
- Enhancement of eucalypt pulp yield through extended impregnation cooking
- Xyloglucan adsorption for measuring the specific surface area on various never-dried cellulose nanofibers
- Xyloglucan for estimating the surface area of cellulose fibers
- Mechanical pulping
- Validation of crill measurements in a high-yield pulp refining process for improved fines material control
- Bar force measurement in low consistency refining: the effect of plate pattern
- Paper technology
- The influence of bar width on bar forces and fibre shortening in low consistency pulp refining
- Density development in foam forming: wet pressing dynamics
- Paper physics
- Effect of softwood kraft fiber coarseness on formation and strength efficiency in twin-wire roll forming
- Phosphorescence and fluorescence of fibrillar cellulose films
- A three-dimensional numerical model for large strain compression of nanofibrillar cellulose foams
- Effect of machine speed on formation and strength efficiency in twin-wire roll forming of never-dried unbleached softwood kraft pulp
- The versatility of the Bristow absorption tester – a review
- Paper chemistry
- Optimizing the preparation conditions of amphoteric polyacrylamide as a strength additive for recycled paper
- Preparation of nanocomposite polypyrrole/cellulose nanocrystals for conductive paper
- Preparation and characterization of AKD sizing agent by “one-pot cooking”
- Thermal and natural aging of bagasse paper sheets coated with gelatin
- Coating
- Crack analysis of barrier coatings based on starch and starch-PVOH with and without plasticizer
- Packaging
- Effect of blank pre-conditioning humidity on the dimensional accuracy and rigidity of paperboard trays
- Environmental impact
- Biological treatment and ultrafiltration of woodchip pre-hydrolysis liquor from dissolving pulp mills
- Recycling
- Circular action treatment (CAT): a new strategy for mechanical treatment of old corrugated container I – effects of control parameters on paper strength