LONGKOU LONGPAI FINE CHEMICAL INDUSTRY CO.,LTD.is present the company has an annual capacity of 8000tons and its products are sold to many countries.
Longkou Longpai is always committed to satisfying our customer's needs based on excellent tradition, advanced technology and creative management system. These years , going with the times, Longkou Longpai is the first manufacturer in China that gets through ISO9001:2000 certification.In 1994, the reactive neutral sizing agent and emulsion were respectively silver medal by 94 patent market of new-tech&new product expo and ji'nan science &technology progressed medal by shandong science committee. Longkou Longpai is appraised as acompany that customers can crust both in quality and in credit by China Product Quality Inspection Committee and our products are appraised as recommended products by shandong papermaking society.

PAE Wet Strength Agent
This agent can age both in neutral and in alkalescent conditions .it can make the paper settled with higher stability in its sizes. The customers can benefit from this product form its many advantages, such as wide PH applications, nontoxic, excellent absorbency ,higher dry /wet intensity ,surface intensity burst and excellent ink-absorbing ability etc.

LP Neutral papermaking sizing agent
This agent is a kind of self-adhesive neutral sizing agent ,which can be used to replace the double-adhesive or single-adhesive system that exists in AKD sizing agent. It can make the fiber in the pulp and the surff combined efficiently and firmly by means of the elecrrostatic attracion and macromolcule action. It can greatly save pulp and lower the cost by keeping the small fiber and stuff in the pulp. For the neutral paper (PH 7-9),It can increase the paper's intensity ,lower the corrosion to the equipment and extend the papermaker's service life. It is appliecd to fine paper, carbon, newsprint, and fruit bag paper etc. it can improve the paper's performance greatly and many specifications of the paper are better than those processed by the acid or traditional neutral sizing agent ,such as surface intensity ,pull force , sizing capacity ,opacity ,surface smoothness etc.