JPS54108684A - Device for measuring porosity of moving track made of paper or similar airrpermeable substance - Google Patents

Device for measuring porosity of moving track made of paper or similar airrpermeable substance

Info

Publication number
JPS54108684A
JPS54108684A JP174179A JP174179A JPS54108684A JP S54108684 A JPS54108684 A JP S54108684A JP 174179 A JP174179 A JP 174179A JP 174179 A JP174179 A JP 174179A JP S54108684 A JPS54108684 A JP S54108684A
Authority
JP
Japan
Prior art keywords
airrpermeable
substance
paper
similar
moving track
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP174179A
Other languages
Japanese (ja)
Inventor
Pinku Piitaa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koerber AG
Original Assignee
Hauni Werke Koerber and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hauni Werke Koerber and Co KG filed Critical Hauni Werke Koerber and Co KG
Publication of JPS54108684A publication Critical patent/JPS54108684A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/86—Investigating moving sheets

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Paper (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
JP174179A 1978-02-06 1979-01-09 Device for measuring porosity of moving track made of paper or similar airrpermeable substance Pending JPS54108684A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782804975 DE2804975A1 (en) 1978-02-06 1978-02-06 DEVICE FOR MEASURING THE POROSITY OF A MOVING WEB OF PAPER OR SIMILAR AIR PERMEABLE MATERIAL

Publications (1)

Publication Number Publication Date
JPS54108684A true JPS54108684A (en) 1979-08-25

Family

ID=6031266

Family Applications (1)

Application Number Title Priority Date Filing Date
JP174179A Pending JPS54108684A (en) 1978-02-06 1979-01-09 Device for measuring porosity of moving track made of paper or similar airrpermeable substance

Country Status (4)

Country Link
JP (1) JPS54108684A (en)
DE (1) DE2804975A1 (en)
FR (1) FR2416461A1 (en)
IT (1) IT1110091B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4684256A (en) * 1983-12-30 1987-08-04 Nitto Electric Industrial Co., Ltd. Apparatus and method for continuously measuring polarizing property
DE3430439A1 (en) * 1984-08-18 1986-05-07 Hoechst Ag, 6230 Frankfurt METHOD AND ARRANGEMENT FOR CONTROLLING PROCESS PARAMETERS IN THE PRODUCTION OF STRETCHED FILMS
DE4302137C2 (en) * 1993-01-27 1999-09-02 Micro Perforation Engineering Method and device for optical porosity measurement on a running web
DE4421962C1 (en) * 1994-06-23 1996-01-04 Mpe Micro Perforation Engineer Optical measurement of micro-perforation tracks in moving strip material
DE19616018C2 (en) * 1996-04-23 2002-10-24 Mpe Micro Perforation Engineer Method and device for optical porosity measurement in a running web
US7224447B2 (en) 2004-03-08 2007-05-29 Philip Morris Usa Inc. System and method for measuring the permeability of a material
US10481091B2 (en) * 2016-02-05 2019-11-19 The Procter & Gamble Company Method and apparatus for detecting holes in substrates in absorbent article converting lines

Also Published As

Publication number Publication date
DE2804975A1 (en) 1979-08-09
IT7919832A0 (en) 1979-02-02
IT1110091B (en) 1985-12-23
FR2416461A1 (en) 1979-08-31

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