best price Paper Making Chitosan

Because of the amino and carboxyl groups in chitosan, it can be dissolved in dilute acid to form a high viscosity colloid solution. The water solution is a cationic electrolyte, which has good film forming property, and can be used in the paper.

Chitosan molecular weight material for the linear and molecular weight from tens of thousands to millions of unequal, the fiber has sufficient adhesion strength and fiber schematic bridge ability. So the paper better enhancement and retention effect.

Shell similar to that of chitosan with a molecular weight of cellulose, cellulose and its chemical structure similar and straight chain type, in aqueous solution showed positive also has certain cations and good film-forming property, good permeability and stable water resistance of. The above characteristics of chitosan are well suited for use as a surface sizing agent for paper.

Chitosan itself is a kind of preservative, used as a paper surface sizing agent, has good mothproof, mildewproof effect, therefore for the production of books and printing paper, is especially popular.

Chitosan can also with gelatin, polyol a polyacid compound, to form the composite sizing agent, made of special paper for offset printing, the printing plate which can be used for sucking and the absorption of the ink. Capacitor paper in front of the pressure, with 2% 0.3% chitosan acetic acid solution surface treatment, can significantly improve the electrical resistivity of paper.

At present, the application of chitosan in the paper industry is the most widely used in the paper. As an increasing agent for paper, it is generally believed that the ideal of the increase of dry - enhancing agent should have the following conditions: 1. The relative molecular mass, with film-forming ability, have sufficient adhesion strength and fiber to fiber in frame bridge. There are many positive charge centers and the carboxyl groups in the molecular chain, which is convenient for the formation of electrostatic and hydrogen bonding. Because chitosan is completely in line with the above conditions, so it has a very good effect of increasing the dry.

Our company produces special chitosan, which is rich in active groups of molecules can be formed with the cellulose and hydrogen bonds are closely combined, with a significantly enhanced, retention and auxiliary effect, the effect of non wood fiber pulp is better.

This product can improve the retention rate of slurry and filling, reduce the processing strength of white water and increase the wet strength of paper and dry strength, reduce the proportion of wood pulp. A variety of properties, such as increasing the breaking strength of the paper, relative fracture tolerance, folding endurance, humidity and water resistance, etc..

 Golden-Shell Pharmaceutical Co. Ltd., founded in 1994, was originally known as Golden-Shell Biochemical and now is the largest manufacturer of chitin and chitin derivatives in China. Golden-Shell is located in Yuhuan County of Zhejiang Province, which provides easy access to international ports such as Shanghai port and Ningbo port.Covering an area of more than 20,000 square meters, Golden-Shell has been granted many domestic and foreign certifications such as the NSF-GMP, ISO22000:2005, ISO9001:2008 and HALAL. Moreover, we have achieved the Drug Manufacturing License for Pharmaceutical Excipients and Active Pharmaceutical Ingredients. Drug Master Files have been prepared for several of our products and the DMF number has been issued by the US-FDA. Golden-Shell International LLC was established and registered in New Jersey, USA in 2014. Our trademark “GOLDEN-SHELL” has been successfully registered in many countries, and our company has been authorized to import and export goods independently. Based on a global sales network, Golden-Shell exports more than 95% of its products and has exported to over 30 countries and regions around the world.
 
Golden-Shell Production - Specialization as well as Quality
Golden-Shell has production workshops and a quality control laboratory for glucosamine, chitosan, chitosan oligosaccharide, chitin derivatives, etc. Dedicated workshops are all in full compliance with domestic and international GMP requirements. All the staff here have received strict training and passed the examination, which maximally avoids mix-up, error, contamination, and cross-contamination during production.Our purified water system, HVAC system, and compressed air system are all built according to GMP standard, from the initial URS (User Requirement Specification) to final performance qualification. There are dedicated warehouses to meet different storage requirements for raw materials, packaging materials, and finished products.Golden-Shell has a state-of-the-art quality control laboratory, which allows us to perform a wide scope of tests and analysis, from physical and chemical testing, precision instrument analysis, to microbiological examinations. Thus, Golden-Shell products conform to the standards of many countries, such as USP, EP, BP, CP, and so on. Reserve sample: The reserve sample is retained for one year after the expiration date.  Drug stability monitoring: We have GMP compliant facilities for drug stability monitoring, which makes sure all our products remain stable in quality before the expiration date. In addition, Golden-Shell passed NSF site audit and gained NSF-GMP certificate at the end of 2013. Currently, the company is preparing to declare CEP certification.
 
Golden-Shell Products - Technology contributes to Our Continuous Development
Golden-Shell firmly sticks to develop through technology innovation and develops more than thirty new marine polysaccharide products, such as the Glucosamine series, Chitosan series, and Chitosan oligosaccharide series, including a state-level new product and five provincial high-tech products. Golden-Shell also has research institutions such as Chitin Research and Development Joint Laboratory and Provincial High-tech Research and Development Center and undertakes more than eleven provincial-level research projects, with thirteen patents for inventions and more than ten scientific and technological achievements, including a second prize of provincial science and technology progress (The Spark Plan).
 
Golden-Shell Culture - Focused Dedication and Win-win Cooperation
Golden-Shell looks forward to creating win-win cooperation with partners from all around the world. We provide our staff with comfortable working environment, and ensure smooth and effective communication with our clients. The company has been named the National High-tech Enterprise, the Backbone of Agricultural Enterprise in Zhejiang Province and National Agricultural Processing and Exporting Model Enterprise by the Ministry of Agriculture. All staff in Golden-Shell sincerely welcomes worldwide clients and experts to work with us for a better future!