Textured paper manufacturers are an important part of the production of paper tape. The base paper is 20×50g/㎡, most of which are 30×40g/m~z. This requires the raw paper to be evenly dispersed and high in density. Pulp is mainly made of long-fiber needles and cotton fibers or chemical fibers. It can also be added appropriately. In order to ensure the excellent absorption rate of the base paper, the pulp is generally not sized, and a small amount of sizing agent can be added to adjust the absorption rate of the base paper. The wet strength of the base paper is high to prevent paper shredding.
During the dipping process, the elongation of K is also an important physical function index of the substrate. The elongation is generally guaranteed to be above 7%. In order for the base paper to have excellent elongation, the base paper must be creped. In order to ensure that the wrinkled paper has a certain degree of airtightness, it is impossible to wrinkle again after drying, and it must be carried out under the condition of wet paper, that is, the wet wrinkle method. When crumpled together, a certain degree of paper pressing is required.
In this way, the elongation of the paper will increase to ensure the tightness of the paper. Traditional folding shaver. Other methods, such as double rollers (steel rollers and rubber rollers), can also be used to achieve a certain speed difference wrinkle. Textured paper (crepe paper) is small in quantity, poor in strength, and cannot meet the final requirements of deformed paper. It needs to be impregnated with raw paper. The impregnation process is to soak the paper with resin, latex, etc., so that the paper absorbs resin or La. When the paper dries, the resin or latex binds the fibers together.
Increasing the strength indicators of the base paper, such as tensile strength, tear strength, internal peel strength, etc., can also improve other properties of the base paper, such as water resistance, solvent resistance, and water resistance. Latex or resin can be used as an impregnant. Commonly used latexes are chloroprene rubber, styrene butadiene rubber, acrylic latex, nitrile latex and so on. The resin may be melamine-formaldehyde resin, phenolic resin, urea-formaldehyde resin and the like. Simply use a commonly used latex or resin.
