METHOD FOR REINFORCEMENT OF JOINT BETWEEN ROLLED MATERIALS AND ABSORBING ITEM INCLUDING JOINED ROLLED MATERIALS Russian patent published in 2010 - IPC B32B29/00 A61F13/15 

FIELD: technological processes.

SUBSTANCE: invention relates to method for connection of the first rolled material to the second rolled material by application of thermal energy or ultrasonic energy and is aimed at improvement of joint force in seam between rolled material with provision of high quality item without residual adhesive substances outside the area of joining seam. Method for connection of the first and second rolled material with each other consists in bringing two rolls together in the area to be joined, and thermal or ultrasonic energy is applied to at least one of rolled materials in joined area. In order to increase strength of the joint, additional material, which is not sticky at the temperature of 20°C is applied at least on one of rolled materials at least in part of joined area, before two rolled materials are brought together. In one aspect rolled materials are components of hygienic absorbing item.

EFFECT: increase of connection strength.

31 cl, 6 dwg