TW200706575A - Method and apparatus for swelling polyvinyl alcohol film, method and apparatus for producing polarizing film, polarizing film and polarizing plate - Google Patents

Method and apparatus for swelling polyvinyl alcohol film, method and apparatus for producing polarizing film, polarizing film and polarizing plate

Info

Publication number
TW200706575A
TW200706575A TW095121301A TW95121301A TW200706575A TW 200706575 A TW200706575 A TW 200706575A TW 095121301 A TW095121301 A TW 095121301A TW 95121301 A TW95121301 A TW 95121301A TW 200706575 A TW200706575 A TW 200706575A
Authority
TW
Taiwan
Prior art keywords
polyvinyl alcohol
film
swelling
alcohol film
polarizing
Prior art date
Application number
TW095121301A
Other languages
Chinese (zh)
Inventor
Yukari Nose
Original Assignee
Yukari Nose
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
Priority claimed from JP2005222392A external-priority patent/JP2007051166A/en
Application filed by Yukari Nose filed Critical Yukari Nose
Publication of TW200706575A publication Critical patent/TW200706575A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/0009—After-treatment of articles without altering their shape; Apparatus therefor using liquids, e.g. solvents, swelling agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/02—Chemical treatment or coating of shaped articles made of macromolecular substances with solvents, e.g. swelling agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/004—Shaping under special conditions
    • B29C2791/008—Using vibrations during moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2029/00—Use of polyvinylalcohols, polyvinylethers, polyvinylaldehydes, polyvinylketones or polyvinylketals or derivatives thereof as moulding material
    • B29K2029/04—PVOH, i.e. polyvinyl alcohol
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0034—Polarising
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/008—Wide strips, e.g. films, webs
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2329/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
    • C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
    • C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polarising Elements (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

To carry out swelling of a polyvinyl alcohol film 10 in the thickness direction uniformly, guide roller 18, 19 that convey and guide a polyvinyl alcohol film 10 are disposed in swelling water 14 of a swelling thank 11 that is partitioned into a front tank 12 and a back tank 13 by a partitioning wall 15, ultrasonic vibration elements 21, 22 that subject the polyvinyl alcohol film 10 to ultrasonic vibration are dispensed in the swelling water 14 of the front tank 12, and water supply pipes 23 and 24, which eject water so as to enable the formation of a water flow that flows in a forward direction along a portion of the polyvinyl alcohol film 10 that is subjected to ultrasonic vibration, are disposed between the ultrasonic vibration elements 21, 22 and the partitioning wall 15.
TW095121301A 2005-08-01 2006-06-14 Method and apparatus for swelling polyvinyl alcohol film, method and apparatus for producing polarizing film, polarizing film and polarizing plate TW200706575A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005222392A JP2007051166A (en) 2005-07-19 2005-08-01 Method and apparatus for swelling polyvinyl alcohol film and method for producing polarizing film and polarizing plate

Publications (1)

Publication Number Publication Date
TW200706575A true TW200706575A (en) 2007-02-16

Family

ID=37708636

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095121301A TW200706575A (en) 2005-08-01 2006-06-14 Method and apparatus for swelling polyvinyl alcohol film, method and apparatus for producing polarizing film, polarizing film and polarizing plate

Country Status (2)

Country Link
TW (1) TW200706575A (en)
WO (1) WO2007015357A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103278878A (en) * 2013-06-27 2013-09-04 佛山纬达光电材料有限公司 Processing technology of polarizer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5969180B2 (en) * 2011-08-02 2016-08-17 日東電工株式会社 Processed film manufacturing method and apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06298968A (en) * 1993-04-19 1994-10-25 Seiko Epson Corp Method for removing gel substances
JP3640701B2 (en) * 1995-05-19 2005-04-20 旭化成ケミカルズ株式会社 Purified polysulfone resin and polysulfone resin purification method
JPH10153709A (en) * 1996-11-22 1998-06-09 Tokai Rubber Ind Ltd Production of polarizer film

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103278878A (en) * 2013-06-27 2013-09-04 佛山纬达光电材料有限公司 Processing technology of polarizer

Also Published As

Publication number Publication date
WO2007015357A1 (en) 2007-02-08

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