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   网站首页    公告    什么影响瓦楞纸板粘合强度
生产出纸板含水率高低不一,会使粘合后的纸板翘曲,造成刚粘合处张开,破坏纸板粘合强度;一些纸板表层起泡起层,使整个纸板粘合强度下降和弯曲,表层起泡的纸板在印刷开槽机上难以印刷出清晰的图案。
Produce paper moisture content of different, can make the adhesive after the cardboard warping, cause just out of open, destroy cardboard bonding strength; Some cardboard surface bubbly layer, make the whole board adhesive strength and bending, surface foaming board in printing slotting machine is difficult to print out the clear pattern.
纸的质量特性对纸板粘合强度的影响主要在纸的含水率和板纸面层与芯层的结构特性。测试中发现,一些板纸面层与芯层,因工艺造成分层或者纤维拉力小,造成纸板起层,使粘合强度下降。所和纸的含水率小于14%时,纸吸胶快、渗透好,生产的纸板粘合强度较好,但如果纸过分干燥,会过快地吸收粘合剂中的水分,粘合剂的流动性,抑制粘合剂的渗透,使粘合剂不能渗透到足够的深度,反而降低纸板粘合牢度;反之,原纸过湿,其水分会阻碍纤维吸收粘合剂,导致粘合剂过少,瓦楞纸板胶分层,粘合强度差。
The quality characteristic's influence on the adhesive strength of paper mainly in the moisture content of paper and board paper layer and core layer structure characteristics. Tests found that some board paper layer and core layer, layered or fiber pull small caused by the process, cause the cardboard layer, decreased adhesion strength. The paper and the moisture content of less than 14%, paper glue fast absorption, permeability is good, the production of cardboard bonding strength is good, but if the paper is dry, too much too quickly absorbs moisture from the glue, glue liquid, inhibit the infiltration of adhesive, the adhesive can't penetrate the enough depth, but reduce board adhesive fastness; On the other hand, the base paper is too wet, the water will hinder the fiber absorb adhesives, lead to too little glue, glue layer corrugated cardboard, bonding strength is poor.
生产纸箱,主要材料为各品种纸。按克重分为箱板纸与瓦楞原纸,按产地分为进口与国产,按材质又可分为木浆纸、竹浆纸、草浆纸、废纸回造纸等。所用粘接剂,目前主要为泡花碱和玉米淀粉粘接剂,玉米淀粉粘接剂又分为冷制胶与热制胶,玉米淀粉可以因配方不同,制成不同质量特性的粘接剂。纸原料和粘接上的质量性能,可影响纸箱的粘合强度。
Carton production, the main material for each type of paper. By the gram weight is divided into corrugated board paper and corrugated base paper, according to the producing area is divided into import and domestic, and according to the material and can be divided into wood pulp paper, bamboo pulp paper, straw paper, waste paper papermaking back, etc. Adhesive, used mainly for paohuajian and corn starch adhesive, corn starch adhesive is divided into cold glue and hot glue, corn starch can be different because of the formula, made from different quality characteristics of bonding agent. Paper materials and adhere to the quality of performance, can affect the bonding strength of the carton.
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