Process for providing ventilation incisions on a flexible substrate using chemicals to regulate the opening of these incisions and flexible substrate obtained therefrom

摘要

A process of providing ventilation incisions on flexible substrates wherein the flexible substrate (10) is treated with a chemical or a combination of chemicals and reaction of the chemical or combination of chemicals to the environmental factor regulates functioning of the ventilation points prepared on the substrate. The process comprises steps of substrate selection, chemical selection and chemical preparation, application of the chemical on the substrate and ventilation incision creation (12) on the substrate, wherein the chemical or combination of chemicals used includes but is not limited to chemical or combination of chemicals which reacts to environmental factors including temperature, moisture, and light. The reaction of the chemical or combination of chemicals causes the ventilation incision prepared on the flexible substrate to deform and adapted to ventilate.