IT7919832A0 - DEVICE FOR MEASURING THE POROSITY OF A MOVING AREA OF PAPER OR A SIMILAR AIR PERMEABLE MATERIAL. - Google Patents

DEVICE FOR MEASURING THE POROSITY OF A MOVING AREA OF PAPER OR A SIMILAR AIR PERMEABLE MATERIAL.

Info

Publication number
IT7919832A0
IT7919832A0 IT7919832A IT1983279A IT7919832A0 IT 7919832 A0 IT7919832 A0 IT 7919832A0 IT 7919832 A IT7919832 A IT 7919832A IT 1983279 A IT1983279 A IT 1983279A IT 7919832 A0 IT7919832 A0 IT 7919832A0
Authority
IT
Italy
Prior art keywords
porosity
paper
measuring
permeable material
air permeable
Prior art date
Application number
IT7919832A
Other languages
Italian (it)
Other versions
IT1110091B (en
Original Assignee
Hauni Werke Koerber & 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 & Co Kg filed Critical Hauni Werke Koerber & Co Kg
Publication of IT7919832A0 publication Critical patent/IT7919832A0/en
Application granted granted Critical
Publication of IT1110091B publication Critical patent/IT1110091B/en

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)
IT19832/79A 1978-02-06 1979-02-02 DEVICE FOR MEASURING THE POROSITY OF A MOVING AREA OF PAPER OR SIMILAR AIR-PERMEABLE MATERIAL IT1110091B (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 (2)

Publication Number Publication Date
IT7919832A0 true IT7919832A0 (en) 1979-02-02
IT1110091B IT1110091B (en) 1985-12-23

Family

ID=6031266

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19832/79A IT1110091B (en) 1978-02-06 1979-02-02 DEVICE FOR MEASURING THE POROSITY OF A MOVING AREA OF PAPER OR SIMILAR AIR-PERMEABLE MATERIAL

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
EP3411693A1 (en) * 2016-02-05 2018-12-12 The Procter and Gamble Company Method and apparatus for detecting holes in substrates in absorbent article converting lines

Also Published As

Publication number Publication date
JPS54108684A (en) 1979-08-25
FR2416461A1 (en) 1979-08-31
IT1110091B (en) 1985-12-23
DE2804975A1 (en) 1979-08-09

Similar Documents

Publication Publication Date Title
NO812400L (en) DEVICE IN THE DRY SECTION OF A PAPER MACHINE.
DK540878A (en) HAPPY MULTI-WRAPPING FOR ISAER WET NAPKINS
BE857222A (en) ABSORBENT SLEEVE, AIR PERMEABLE
DE3170821D1 (en) NON-WOVEN WEB MATERIAL
DK147540C (en) FLATFORMED PAPER MATERIAL
IT7950532A0 (en) AIR LAYER SUPPORT DEVICE FOR BELT MATERIAL
IT8141662A1 (en) DEVICE FOR THE EMBOSSING OF SHEET MATERIAL
IT1135433B (en) SEPARATION DEVICE FOR PAPER, FABRIC OR PLASTIC MATERIALS
IT7967798A0 (en) PROCEDURE AND DEVICE FOR THE SEPARATION OF THE CYLINDERS OF A CALANDER FOR PAPER, FABRICS, PLASTICS AND SIMILAR MATERIALS
IT7967422A0 (en) PROCEDURE FOR THE MANUFACTURING OF PAPER AND CARDBOARD
IT7919832A0 (en) DEVICE FOR MEASURING THE POROSITY OF A MOVING AREA OF PAPER OR A SIMILAR AIR PERMEABLE MATERIAL.
AT356592B (en) Abruptly acting reversible compressed air device for forming bores
IT7924367A0 (en) PAPER FOR PACKAGING USE AND PROCEDURE FOR ITS PREPARATION.
IT1101426B (en) PROCEDURE FOR DEGASSIFYING PAPER MANUFACTURING MATERIAL, AND DEVICE FOR IMPLEMENTING THE PROCEDURE
IT7912509A0 (en) DEVICE FOR THE INTERMITTENT FEEDING OF TAPE OF ANY MATERIAL, IN PARTICULAR PAPER OR FABRIC, OR SIMILAR
IT1094381B (en) PROCEDURE FOR THE FAST GLUING OF PAPER AND CARDBOARD AND RESPECTIVELY OF PLASTIC MATERIAL
IT7909494A0 (en) POROUS CERAMIC STRUCTURAL MATERIAL FOR ACOUSTIC MACHINES AND INSTRUMENTS
ES515742A0 (en) "DEVICE FOR THE INTRODUCTION OF FINE MATERIAL IN A CALCINATION AREA".
SE7707806L (en) SHEET FIBER MATERIAL AND USE THEREOF
IT7824430A0 (en) ANIONIC GLUE FOR SIZING PAPER ON THE SURFACE.
AT382912B (en) PAPER MACHINE DRY FELT
DK150590C (en) PRESSURE SENSITIVE MARK SHARP
IT1079452B (en) DEVICE FOR HANDLING PAPER SHEETS
SU641325A1 (en) Device for determining sheet material porosity
IT1238588B (en) DEVICE FOR DETERMINING THE AIR PERMEABILITY OF A TAPE OF MATERIAL