公开(公告)号：US20170113859A1

公开(公告)日：2017-04-27

申请号：US14919022

申请日：2015-10-21

Applicant: NESTEC SA

Inventor： Albert Lawrence Baner ,  Russell Leeker ,  Scott Wiles

IPC: B65D77/12 ,  B65B51/10 ,  B65B7/02

CPC classification number: B65D77/12 ,  B65B7/02 ,  B65B51/10 ,  B65D33/18 ,  B65D75/12

Abstract: A method for sealing a thermoplastic bag includes forming a first fold in a top end of the bag; forming a second fold in the top end that includes the first fold; folding the first fold to form a first portion of the first fold and a second portion of the first fold, the second portion of the first fold is folded onto the first portion of the first fold; and heat sealing the first fold and the second fold to each other and to a portion of the bag that faces the first fold, the heat sealing including applying hot air to the bag. Preferably the second fold has a height that is less than a height of the first fold such that the forming of the second fold folds the first fold to form the first and second portions of the first fold.