KR970014990A - 사출 연신 취입 성형방법 - Google Patents

사출 연신 취입 성형방법 Download PDF

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Publication number
KR970014990A
KR970014990A KR1019960042327A KR19960042327A KR970014990A KR 970014990 A KR970014990 A KR 970014990A KR 1019960042327 A KR1019960042327 A KR 1019960042327A KR 19960042327 A KR19960042327 A KR 19960042327A KR 970014990 A KR970014990 A KR 970014990A
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South Korea
Prior art keywords
preform
injection
temperature
mold
stretch blow
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KR1019960042327A
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English (en)
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세츠유키 다케우치
노부쿠니 이베
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아오키 시게토
아오키고 겐큐쇼 가부시키가이샤
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Publication of KR970014990A publication Critical patent/KR970014990A/ko

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    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B29C49/6409—Thermal conditioning of preforms
    • B29C49/6418—Heating of preforms
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B29C49/6409—Thermal conditioning of preforms
    • B29C49/6436—Thermal conditioning of preforms characterised by temperature differential
    • B29C49/6454—Thermal conditioning of preforms characterised by temperature differential through the preform thickness
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/08—Biaxial stretching during blow-moulding
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C2049/023—Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 step blow moulding
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/22—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at neck portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/24—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at flange portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/26—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at body portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/20—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer
    • B29C2949/28—Preforms or parisons whereby a specific part is made of only one component, e.g. only one layer at bottom portion
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/30—Preforms or parisons made of several components
    • B29C2949/3032—Preforms or parisons made of several components having components being injected
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06—Injection blow-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
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • 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
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B29K2067/003—PET, i.e. poylethylene terephthalate
    • 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
    • B29K2995/0037—Other properties
    • B29K2995/0094—Geometrical properties
    • B29K2995/0097—Thickness
    • 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
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7158—Bottles

Abstract

예비 성형체가 고온 이형한 후에 직접 연신 취입 성형을 행하는 성형 방법에서도 예비 성형체의 몸체 두께 및 성형온도의 제한에 영향받지 않고 몸체 두께가 0.17㎜ 이하의 가운데가 빈 성형품의 성형을 가능하게 하기 위하여, 용융 수지를 사출 금형에 사출 충진하여 필요한 예비 성형체⑴에 형성하고 그 예비 성형체⑴의 냉각 시간을 적극적으로 단축하여 예비 성형체⑴의 외표면의 막 두께를 증가하지 않고 경질의 표면층을 형성한다. 그 표면층에 의하여 예비 성형체의 형상이 유지되고 또한 내부가 고온상태에 있는 동안 리프금형에 의하여 입구부를 유지하여 사출금형으로부터 이형하여 취입금형으로 이송하고 자기의 내부온도에 의하여 상승하는 예비성형체⑴의 표면온도가 유리 전이온도(Tg) 보다도 현저히 고온에서, 피크 온도에 도달하였다고 생각되는 시점에서 주요 부분을 초 박막 몸체의 병⑵ 등의 속이빈 성형품으로 연신 취입 형성한다.

Description

사출 연신 취입 성형방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 폴리에치렌 테레프타레이트에 의하여 사출 성형한 예비 성형체의 고온 이형후의 외표면 온도의 경시 변화도,
제2도는 예비 성형체와 연신 취입 성형한 병의 설명도이다.

Claims (3)

  1. 사출 연신 취입 성형 방법에 있어서, 원하는 예비 성형체를 형성하기 위하여 용융수지를 사출금형, 리프금형 및 사출코어에 의하여 규정되는 사출 캐버티에 사출하는 단계와, 상기 예비 성형체의 냉각 시간을 양으로 감소함에 의하여 표면층의 두께 증가 없이 예비 성형체의 외표면을 단단하게 하는 단계와, 예비 성형체의 표면층이 예비 성형체의 형태를 유지하고 그 내부가 고온 상태로 유지되는 동안 리프 금형으로 고정하는 예비 성형체의 마우스 부를 가지고 사출 금형과 사출 코어로부터 해제하는 단계와, 취입 금형으로 이송하는 단계와, 자신의 내부 온도에 의하여 상승하는 예비 성형체의 표면온도가 유리전이 온도(Tg) 보다도 현저히 높은 온도에서 피크 온도에 도달하였다고 생각되는 때에 주요 부분을 초 박막이 속이 빈 성형품으로 연신 취입 성형하는 단계로 구성되는 것을 특징으로 하는 사출 연신 취입 성형 방법.
  2. 제1항에 있어서, 개스 압력을 사용하여 코어 표면으로부터 예비 성형체의 내부 표면을 분리하기 위하여 사출 금형에 용융수지를 사출 충진한 후에 용융상태의 예비 성형체와 사출 코어 사이의 경계에 필요한 압력의 개스를 압입하고, 사출 금형의 표면에 대하여 예비 성형체를 압축하여 예비 성형체의 외표면을 적극적으로 냉각하는 것을 특징으로 하는 사출 연신 취입 성형 방법.
  3. 제1항 또는 제2항에 있어서, 폴리에치렌 테레프타레이트로 형성된 예비 성형체를 사출 금형으로부터의 이형이, 금형으로부터의 이형 직후의 예비 성형체의 표면온도가 약 70℃ 범위의 온도에서 수행되고, 자기의 내부 온도에 의하여 상승하는 예비 성형체의 표면 온도가 105℃ 이상의 고온 영역에서 피크 온도에 도달하였다고 생각되는 시점에서 주요 부분을 0.07~0.15㎜의 두께의 초박막의 속이 빈 성형품으로 연신 취입 성형하는 것을 특징으로 하는 사출 연신 취입 성형 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960042327A 1995-09-29 1996-09-25 사출 연신 취입 성형방법 KR970014990A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP7276774A JPH0994872A (ja) 1995-09-29 1995-09-29 射出延伸吹込成形方法
JP95-276774 1995-09-29

Publications (1)

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KR970014990A true KR970014990A (ko) 1997-04-28

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US (1) US5951938A (ko)
EP (1) EP0767046B1 (ko)
JP (1) JPH0994872A (ko)
KR (1) KR970014990A (ko)
AR (1) AR003746A1 (ko)
AT (1) ATE190003T1 (ko)
AU (1) AU716229B2 (ko)
BR (1) BR9604327A (ko)
CA (1) CA2186427A1 (ko)
DE (1) DE69606819T2 (ko)
DK (1) DK0767046T3 (ko)
EA (1) EA000579B1 (ko)
ES (1) ES2143120T3 (ko)
IL (1) IL119313A (ko)
NZ (1) NZ299459A (ko)
SG (1) SG92604A1 (ko)
TW (1) TW302322B (ko)
ZA (1) ZA968158B (ko)

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ES2143120T3 (es) 2000-05-01
ATE190003T1 (de) 2000-03-15
DK0767046T3 (da) 2000-08-14
EA199600077A1 (ru) 1997-06-30
NZ299459A (en) 1997-06-24
DE69606819T2 (de) 2000-08-17
CA2186427A1 (en) 1997-03-30
EP0767046A1 (en) 1997-04-09
TW302322B (ko) 1997-04-11
AU716229B2 (en) 2000-02-24
EP0767046B1 (en) 2000-03-01
IL119313A (en) 2000-11-21
US5951938A (en) 1999-09-14
BR9604327A (pt) 1998-06-16
ZA968158B (en) 1997-05-02
JPH0994872A (ja) 1997-04-08
IL119313A0 (en) 1996-12-05
MX9604385A (es) 1997-09-30
SG92604A1 (en) 2002-11-19
EA000579B1 (ru) 1999-12-29
AU6589996A (en) 1997-04-10
AR003746A1 (es) 1998-09-09
DE69606819D1 (de) 2000-04-06

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