Title: Welding method for disposable diapers
Application Number: 94105609 Application Date: 1994.05.19
Publication Number: 1119930 Publication Date: 1996.04.10
Approval Pub. Date: 2002.08.28 Granted Pub. Date: 2002.08.28
International Classifi-cation: A41H43/04;A61F13/45
Applicant(s) Name: Uni-Charm Corporation Address:
Inventor(s) Name: Shin Suekane
Attorney & Agent: ZHANG MINHUA
Abstract:
    A welding method for a disposable diaper comprises the steps of: putting wing-like portions provided on front and rear bodies 5, 6 including a topsheet, a backsheet and a core sandwiched therebetween, one upon another, with the topsheet disposed face to face; placing covering sheets on an outer surface of the wing-like portions, both the covering sheets and the wing-like portions having a melting point higher than the melting point of the backsheet; and welding, under heat and pressure exerted from above the covering sheets, laterally opposite side edges of the wing-like portions.
Time: 16