Title:
PAPER STRAW MANUFACTURING METHOD AND PAPER STRAW MANUFACTURING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/246839
Kind Code:
A1
Abstract:
Provided is a paper straw manufacturing method for addressing the issues of manufacturing process inefficiency and inconvenience in the drinking process of paper straws formed by a glue-adhesion method, the paper straw manufacturing method comprising: a step of unraveling a plurality of paper strips equipped with a thermal adhesive coating material on at least one side in each of a plurality of rolls; a step of heating the unraveled plurality of paper strips by means of a heater; a step of winding, by means of a belt, the heated plurality of paper strips on a core rod so as to form a preparatory straw; a step of the preparatory straw following the length direction of the core rod by means of a guide portion; and a step of cutting the preparatory straw by means of a cutting portion so as to form a straw.
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Inventors:
LEE HEON KUG (KR)
CHOI UN SIK (KR)
CHA MYUNG KYU (KR)
CHOI UN SIK (KR)
CHA MYUNG KYU (KR)
Application Number:
PCT/KR2020/007309
Publication Date:
December 10, 2020
Filing Date:
June 04, 2020
Export Citation:
Assignee:
LEE HEON KUG (KR)
CHOI UN SIK (KR)
CHA MYUNG KYU (KR)
CHOI UN SIK (KR)
CHA MYUNG KYU (KR)
International Classes:
D21H27/32; B31C3/00; B31C11/02; B31D5/00; B31D5/02; D21H19/10; D21H21/14; F24H3/02
Foreign References:
| JPH06133840A | 1994-05-17 | |||
| JP2004222588A | 2004-08-12 | |||
| KR101973367B1 | 2019-04-29 | |||
| KR101977354B1 | 2019-05-10 | |||
| JP2002160312A | 2002-06-04 |
Other References:
See also references of EP 3981915A4
Attorney, Agent or Firm:
LEE & KO IP (KR)
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