What is the inspection standard of Glasin paper？

The inspection standard of Glasin paper includes the following aspects:

Physical properties:

Including paper weight, thickness, strength, elasticity, etc. Excellent Glassine paper requires that the paper surface is flat, the thickness is consistent, and there is no obvious appearance defects such as curling, folding, damage, markings, bubbling, hard blocks and obvious streaks. The paper shall not have powder, peeling and delamination without external force.

Chemical properties:

Including the pH of the paper, humidity, etc., the requirements will not affect the surrounding environment, nor will it cause harm to the product during use.

Raw materials:

Glasin paper raw materials are mainly natural bamboo and wood, need to ensure the quality and purity of raw materials, should meet the environmental requirements, reduce the impact on the environment during the production process, such as wastewater discharge and exhaust gas discharge.

Production process:

Including moisture control, temperature control, surface sizing, sizing concentration control, storage time control. For example, the paper is moistened by a humidifier to control the rate of water penetration into the paper; Specific adhesives and heating systems are used during the coating process to improve indicators such as transparency and tightness of the paper.

Quality standard:

Including the presence of bacteria and fungi, the test results are mainly judged by the form, size and color of the colony. At the same time, indicators such as the number of colonies and the purity of the medium need to be tested.

These standards ensure the quality and use effect of Glasin paper to meet the needs of different fields.