JPS6216170B2 - - Google Patents

Info

Publication number
JPS6216170B2
JPS6216170B2 JP844779A JP844779A JPS6216170B2 JP S6216170 B2 JPS6216170 B2 JP S6216170B2 JP 844779 A JP844779 A JP 844779A JP 844779 A JP844779 A JP 844779A JP S6216170 B2 JPS6216170 B2 JP S6216170B2
Authority
JP
Japan
Prior art keywords
parison
bottle
synthetic resin
pearlescent
saturated polyester
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.)
Expired
Application number
JP844779A
Other languages
Japanese (ja)
Other versions
JPS55100131A (en
Inventor
Akiho Oota
Fumio Negishi
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.)
Yoshino Kogyosho Co Ltd
Original Assignee
Yoshino Kogyosho Co Ltd
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 Yoshino Kogyosho Co Ltd filed Critical Yoshino Kogyosho Co Ltd
Priority to JP844779A priority Critical patent/JPS55100131A/en
Priority to AU54210/79A priority patent/AU538516B2/en
Priority to GB7944458A priority patent/GB2042408B/en
Priority to CA000343096A priority patent/CA1145690A/en
Priority to NL8000168A priority patent/NL190481C/en
Priority to DE3002189A priority patent/DE3002189C2/en
Priority to IT4772080A priority patent/IT1146904B/en
Priority to CH62780A priority patent/CH637075A5/en
Priority to FR8001625A priority patent/FR2447326A1/en
Publication of JPS55100131A publication Critical patent/JPS55100131A/en
Priority to US06/546,077 priority patent/US4481163A/en
Publication of JPS6216170B2 publication Critical patent/JPS6216170B2/ja
Granted legal-status Critical Current

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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/021—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing of profiled articles, e.g. hollow or tubular articles, beams
    • 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
    • B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
    • 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
    • B29C49/48—Moulds
    • B29C49/52—Moulds having decorating or printing means
    • 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
    • B29C49/6445—Thermal conditioning of preforms characterised by temperature differential through the preform length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F9/00—Designs imitating natural patterns
    • B44F9/08—Designs imitating natural patterns of crystalline structures, pearl effects, or mother-of-pearl effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • 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
    • B29C2791/001—Shaping in several steps
    • 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
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/072—Preforms or parisons characterised by their configuration having variable wall 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/072—Preforms or parisons characterised by their configuration having variable wall thickness
    • B29C2949/0724—Preforms or parisons characterised by their configuration having variable wall thickness 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
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
    • 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
    • B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
    • B29C2949/0733—Preforms or parisons characterised by their configuration having variable diameter 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
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
    • B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
    • B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
    • B29C2949/0772—Closure retaining means
    • B29C2949/0773—Threads
    • 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
    • B29C2949/081—Specified dimensions, e.g. values or ranges
    • B29C2949/0811—Wall 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
    • 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
    • B29C2949/3026—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components
    • 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
    • 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
    • B29K2995/0024—Matt surface
    • 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
    • B29K2995/0025—Opaque
    • 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
    • B29K2995/0072—Roughness, e.g. anti-slip

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、外観が真珠光沢を呈する合成樹脂製
壜の製造方法に関するものであり、何らの物質の
添加をも要することなく、所望部位に真珠光沢を
具現する飽和ポリエステル製の壜をブロー成形法
によつて得る方法を提供するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for manufacturing a synthetic resin bottle that has a pearlescent appearance, and it can be applied to a desired area without adding any substance. The present invention provides a method for obtaining a bottle made of saturated polyester that exhibits pearlescent luster by blow molding.

〔従来の技術〕[Conventional technology]

飽和ポリエステル製の壜は、その物理特性、機
械的強度、化学的安定性、透明性等において優れ
た性質を有することから多くの種類の内填物を充
填させるための壜として多用されている。 Bottles made of saturated polyester have excellent physical properties, mechanical strength, chemical stability, transparency, etc., and are therefore widely used as bottles for filling many types of fillers.

然して、前記飽和ポリエステル製壜において
は、内填物の種類によつては透明性がマイナス要
因とされることもあり、また、意匠的効果のうえ
からも、不透明もしくは半透明の飽和ポリエステ
ル製の壜も所望されており、例えば特開昭53−
109562号公報にみられるように、射出工程に引き
続いて行われる冷却操作を徐冷で行なうことによ
つて得た半透明白濁パリソンをブロー成形に付
し、更にサンドブラスト処理して半透明白濁外面
を有する飽和ポリエステル製の壜を得る方法が試
みられている。 However, in the case of the saturated polyester bottles mentioned above, transparency may be considered a negative factor depending on the type of filling material, and from the viewpoint of the design effect, bottles made of opaque or translucent saturated polyester may be considered as a negative factor. Bottles are also desired, for example, JP-A-53-
As seen in Publication No. 109562, a translucent cloudy parison obtained by performing a slow cooling operation subsequent to the injection process is subjected to blow molding, and is further sandblasted to obtain a translucent cloudy outer surface. Attempts have been made to obtain bottles made of saturated polyester.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

ところで、前記した半透明白濁外面を有する飽
和ポリエステル製の壜を得る方法においては、先
ず、パリソンを得る際の射出工程に引き続いて行
われる冷却操作を徐冷で実施することによつて半
透明白濁パリソンを得た後、該パリソンを延伸ブ
ロー成形するものであるから、前記白濁パリソン
に延伸ブロー成形性能が具備されてなければなら
ない、所謂半透明のパリソンとせざるを得ないた
め、白濁程度の高い所謂真珠光沢外観を有する壜
が得られないばかりでなく、ブロー成形後の合成
樹脂製壜にサンドブラスト処理を実施する工程が
必要なため、その製造工程が繁雑になるという欠
点をも有する。 By the way, in the method for obtaining a saturated polyester bottle having a translucent, cloudy outer surface as described above, first, the cooling operation that is performed subsequent to the injection process when obtaining a parison is carried out by slow cooling, so that the outer surface becomes translucent and cloudy. After obtaining the parison, the parison is stretch-blow-molded, so the cloudy parison must have stretch-blow-molding performance.Since it has to be a so-called translucent parison, it has a high degree of cloudiness. Not only is it not possible to obtain a bottle with a so-called pearlescent appearance, but there is also the disadvantage that the manufacturing process becomes complicated because a step of sandblasting is required on the synthetic resin bottle after blow molding.

これに対して、本発明の真珠光沢を有する合成
樹脂製壜の製造方法は、所謂真珠光沢を有する白
濁程度の高い白色外観の飽和ポリエステル製壜
を、繁雑な工程を何ら要することなく得る方法を
提供するものである。 On the other hand, the method for producing a synthetic resin bottle with pearlescent luster according to the present invention provides a method for obtaining a saturated polyester bottle with so-called pearlescent luster and a highly cloudy white appearance without requiring any complicated steps. This is what we provide.

〔問題点を解決するための手段〕[Means for solving problems]

本発明の真珠光沢を有する合成樹脂製壜の製造
方法は、飽和ポリエステル製のパリソンを成形し
た後、該パリソンの壜胴相当部の少なくとも一部
分の表層部分を加熱によつて高度に結晶化させ、
該表層部分が白色化されているところの外面が外
観的に白色化されているパリソンを得ることと、
前記パリソンを、壜胴成形金型凹〓の内面の少な
くとも一部分が微細凹凸群よりなる粗面模様部と
されている成形金型を用いてブロー成形し、前記
パリソンにおける結晶化された部分の表面に、前
記成形金型の有する微細凹凸群からなる粗面模様
を賦形することからなるものである。 The method for producing a synthetic resin bottle with pearlescent luster according to the present invention involves molding a parison made of saturated polyester, and then highly crystallizing at least a portion of the surface layer of the parison corresponding to the bottle body by heating.
Obtaining a parison whose outer surface is whitened in appearance, where the surface layer portion is whitened;
The parison is blow-molded using a mold in which at least a portion of the inner surface of the concavity of the bottle molding mold has a rough surface pattern consisting of a group of fine asperities, and the surface of the crystallized portion of the parison is The method consists of forming a rough surface pattern consisting of a group of fine irregularities possessed by the molding die.

〔実施例〕〔Example〕

本発明の真珠光沢を有する合成樹脂製壜の製造
方法の具体的な構成と、該方法によつて得られる
合成樹脂製壜の具体的な構成とを図面実施例に基
いて説明する。 The specific structure of the method for producing a synthetic resin bottle having pearlescent luster according to the present invention and the specific structure of the synthetic resin bottle obtained by the method will be explained based on drawing examples.

本発明の真珠光沢を有する合成樹脂製壜の製造
方法は、その第１工程として、飽和ポリエステル
を材料として、実質的に非晶質で、有底かつ上端
が開口された透明なパリソン６を成形する。 In the first step of the method for producing a synthetic resin bottle with pearlescent luster according to the present invention, a substantially amorphous transparent parison 6 with a bottom and an open top is molded from saturated polyester. do.

第２工程として、前記パリソン６を外周から、
赤外線ヒーター、ブロツクヒーター等の熱源によ
り加熱し、その表面、好ましくは表面から１mm程
度の深さまでの部分７の結晶化を進め、白色化さ
せる。この際の加熱温度は、パリソン６の表面温
度で、飽和ポリエステルの融点より20℃以上低
く、かつ該ポリエステルの結晶化が生ずる温度よ
り高い温度で行なわれるが、その温度と加熱時間
とは、パリソンにおける表面から深さ１mm程度ま
での部分７のポリマーの平均密度が1.345〜1.375
の範囲内となるように選定するのが好ましい。 As a second step, the parison 6 is removed from the outer periphery,
It is heated by a heat source such as an infrared heater or a block heater to promote crystallization of the surface, preferably a portion 7 to a depth of about 1 mm from the surface, and to whiten it. The heating temperature at this time is the surface temperature of the parison 6, which is at least 20°C lower than the melting point of the saturated polyester and higher than the temperature at which the polyester crystallizes. The average density of the polymer in portion 7 from the surface to a depth of about 1 mm is 1.345 to 1.375.
It is preferable to select it so that it falls within the range of .

次いで、第３工程として、上記パリソン６を成
形金型８内に配置し、二軸延伸または膨張を可能
ならしめうる温度でブロー成形する。 Next, as a third step, the parison 6 is placed in a molding die 8 and blow molded at a temperature that allows biaxial stretching or expansion.

この際使用される成形金型８は、第３図に示さ
れる如く、割型８１，８２よりなり、口部９にお
いてパリソン６の口頚部１０を挾持し、該パリソ
ン６の口頚部１０以外の壜胴相当部１１が壜胴成
形金型の凹〓１２の内面１３に密着するようにし
てブロー成形するものである。 The molding die 8 used in this case consists of split molds 8 1 and 8 2 as shown in FIG. Blow molding is performed so that the other part 11 corresponding to the bottle body is in close contact with the inner surface 13 of the concave 12 of the bottle mold.

前記内面１３には、サンドブラスト等の手段に
よつて、微細凹凸群よりなる粗面模様が形成され
ており、前述のように内面１３に密着した壜胴１
の表面５には、第２図に示される如く、壜胴成形
金型の凹〓１２の内面１３の有する微細凹凸群よ
りなる粗面模様が賦形され、壜胴１の表面があた
かも梨地肌の如き粗表面となるものである。 A rough surface pattern consisting of a group of fine irregularities is formed on the inner surface 13 by means such as sandblasting, and as described above, the bottle body 1 is in close contact with the inner surface 13.
As shown in FIG. 2, the surface 5 of the bottle body 1 is formed with a rough surface pattern consisting of a group of fine asperities formed on the inner surface 13 of the concavity 12 of the bottle body mold, so that the surface of the bottle body 1 appears to have a satin-textured surface. This results in a rough surface like this.

図示実施例では、壜胴１の肩部から底面１４に
亘る全面に粗面模様が賦形されているが、この賦
形部位を、壜胴１の上半部とか、中央部とか、あ
るいは下半部等の限定された部分のみとすること
も可能であり、その際は、パリソン６を白化させ
る際に、真珠光沢を付与する必要のない部位を断
熱材で遮蔽し、該部分の白化を阻止しておくと共
に、成形金型８の内面１３における微細凹凸群よ
りなる粗面模様の賦形部位を、最終製品たる壜の
真珠光沢を持たせるべき部分のみとしておくこと
により、容易に達成しうるものである。 In the illustrated embodiment, a rough surface pattern is formed on the entire surface of the bottle body 1 from the shoulder to the bottom surface 14, but this patterned area may be formed on the upper half, the center, or the bottom of the bottle body 1. It is also possible to whiten only a limited part such as half of the parison 6, and in that case, when whitening the parison 6, cover the part that does not need to be pearlescent with a heat insulating material and prevent the whitening of the part. This can be easily achieved by keeping the rough surface pattern formed by the group of fine irregularities on the inner surface 13 of the molding die 8 only in the part where the final product, the bottle, is to have a pearlescent luster. It's watery.

尚、本発明の真珠光沢を有する合成樹脂製壜の
製造方法においては、ブロー成形に付される飽和
ポリエステル製のパリソンを製作する際に、顔料
等の着色剤を添加、使用して所望の色調を有する
パリソンを製作することにより、着色剤により付
与された色調が上述の真珠光沢と相俟つて特有の
外観を呈する壜を製造することができる。 In addition, in the method of manufacturing a synthetic resin bottle with pearlescent luster according to the present invention, when producing a parison made of saturated polyester to be subjected to blow molding, a coloring agent such as a pigment is added and used to obtain a desired color tone. By manufacturing a parison having the following properties, it is possible to manufacture a bottle that exhibits a unique appearance due to the color tone imparted by the coloring agent combined with the above-mentioned pearlescent luster.

以上、本発明の真珠光沢を有する合成樹脂製壜
の製造方法によつて得られた壜は、前記した通
り、壜胴１の胴内２の表層部分３が高度に結晶化
されており、その結果、該部の表面が外観的に白
色化された状態を呈しており、しかも、表層部分
３の表面５には、微細凹凸群よりなる粗面模様が
賦形されている。 As mentioned above, in the bottle obtained by the method for producing a synthetic resin bottle having pearlescent luster according to the present invention, the surface layer 3 of the inner body 2 of the bottle body 1 is highly crystallized, and the bottle body 1 is highly crystallized. As a result, the surface of the portion has a white appearance, and the surface 5 of the surface layer portion 3 is formed with a rough surface pattern consisting of a group of fine irregularities.

このため、表面５の外観は、粗面のための乱反
射と結晶化による白色現象に基づく白濁された半
透明の色調となることとが相俟ち、真珠光沢を呈
し、合成樹脂成形体の平滑表面特有のぬめるよう
な光沢が全く存しない合成樹脂製壜となるもので
ある。 Therefore, the appearance of the surface 5 is pearlescent due to the diffused reflection due to the rough surface and the white phenomenon caused by crystallization, which gives it a pearlescent appearance. This bottle is made of synthetic resin and has no characteristic slimy luster on its surface.

〔発明の作用及び効果〕[Operation and effect of the invention]

本発明の真珠光沢を有する合成樹脂製壜の製造
方法は、成形金型の壜胴成形凹〓の必要個所の内
面に、予め微細凹凸群よりなる粗面模様を施して
おくと共に、飽和ポリエステルよりなるパリソン
の必要個所を加熱によつて白色化させておき、常
法によつてブロー成形するのみの手段によつて、
素材である飽和ポリエステル中に何ら格別の真珠
光沢発現用の材料の添加なしに、壜胴要部が、合
成樹脂特有のぬめるような光沢を呈することのな
い有色の白濁した半透明の、光の乱反射性にすぐ
れた粗面を呈し、正に真殊様の外表面状態を呈
し、全く軌新な装飾的効果を奏し、しかも飽和ポ
リエステルの本来的に有する特徴が全くそこなわ
れることなしにそのまま具備されている飽和ポリ
エステル製壜が得られるという作用、効果を奏す
るものである。 The method for producing a synthetic resin bottle with pearlescent luster according to the present invention is to apply a rough surface pattern consisting of a group of fine asperities to the inner surface of the bottle body molding concavity of the mold in advance at necessary locations, and to By heating the necessary parts of the parison and blow-molding it by a conventional method,
Without adding any special pearlescent material to the saturated polyester material, the main part of the bottle has a colored, cloudy, translucent color that does not exhibit the slimy luster characteristic of synthetic resins. It exhibits a rough surface with excellent diffused reflection of light, and exhibits a true Shinshu-like outer surface condition, producing a completely new decorative effect, without detracting from the original characteristics of saturated polyester. This has the effect of providing a saturated polyester bottle that can be used as is.

また、本発明の真珠光沢を有する合成樹脂製壜
の製造方法は、常法と全く同一工程、同一生産速
度で実施され得るもので、しかも、真珠光沢発現
のための異物質の添加の必要が全くないので、衛
生的であるのみでなく、ブロー成形の高い生産性
を具備する等の作用、効果をも奏するものであ
る。 Furthermore, the method for producing a synthetic resin bottle with pearlescent luster according to the present invention can be carried out in exactly the same steps and at the same production speed as the conventional method, and moreover, there is no need to add a foreign substance to produce pearlescent luster. Since there is no mold at all, it is not only hygienic, but also has functions and effects such as high productivity in blow molding.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の真珠光沢を有する合成樹脂製
壜の製造方法の１例によつて得られた合成樹脂製
壜の正面図、第２図は壜胴の一部の拡大断面図、
第３図は本発明の真珠光沢を有する合成樹脂製壜
の製造方法の途中工程における成形金型とパリソ
ンとの組付け状態を示す縦断面図である。 １：壜胴、３：表層部分、５：表面、６：パリ
ソン、８：成形金型、１２：壜胴成形金型の凹
〓、１３：内面。 FIG. 1 is a front view of a synthetic resin bottle obtained by an example of the method for manufacturing a synthetic resin bottle with pearlescent luster of the present invention, and FIG. 2 is an enlarged sectional view of a part of the bottle body.
FIG. 3 is a longitudinal sectional view showing a state in which a molding die and a parison are assembled in an intermediate step of the method for manufacturing a synthetic resin bottle having pearlescent luster according to the present invention. 1: Bottle body, 3: Surface layer portion, 5: Surface, 6: Parison, 8: Molding die, 12: Concavity of bottle body forming die, 13: Inner surface.

Claims (1)

【特許請求の範囲】[Claims] １ 飽和ポリエステルを用いてパリソンを成形
し、該パリソンの壜胴相当部の少なくとも一部分
の表層部分を加熱によつて高度に結晶化させて該
部分を白色化させることにより、表面が外観的に
白色化されているパリソンを得た後、該パリソン
を、壜胴成形金型凹〓の内面の少なくとも一部分
が微細凹凸群よりなる粗面模様部とされている成
形金型を用いてブロー成形し、前記パリソンにお
ける結晶化された部分の表面に前記成形金型の有
する微細凹凸群よりなる粗面模様を賦形すること
を特徴とする真珠光沢を有する合成樹脂製壜の製
造方法。1 A parison is molded using saturated polyester, and the surface layer of at least a portion of the portion corresponding to the bottle body of the parison is heated to a high degree of crystallization, thereby making the surface white in appearance. After obtaining the parison, the parison is blow-molded using a mold in which at least a portion of the inner surface of the concavity of the bottle molding mold has a rough surface pattern consisting of a group of fine irregularities, A method for manufacturing a synthetic resin bottle having pearlescent luster, characterized in that a rough surface pattern consisting of a group of fine irregularities of the molding die is formed on the surface of the crystallized portion of the parison.
JP844779A 1979-01-26 1979-01-26 Pearl-glossy synthetic resin bottle and its manufacture Granted JPS55100131A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP844779A JPS55100131A (en) 1979-01-26 1979-01-26 Pearl-glossy synthetic resin bottle and its manufacture
AU54210/79A AU538516B2 (en) 1979-01-26 1979-12-27 Crystallised surface of blow moulding
GB7944458A GB2042408B (en) 1979-01-26 1979-12-28 Bottle having opaque and matt surface
CA000343096A CA1145690A (en) 1979-01-26 1980-01-04 Bottle-shaped container of synethetic resin having ground surface and method of manufacturing the same
NL8000168A NL190481C (en) 1979-01-26 1980-01-10 A method of manufacturing a bottle-shaped synthetic resin container.
DE3002189A DE3002189C2 (en) 1979-01-26 1980-01-22 Method of making a bottle-shaped container from a saturated polyester
IT4772080A IT1146904B (en) 1979-01-26 1980-01-25 CONTAINER IN THE SHAPE OF A SYNTHETIC RESIN BOTTLE WITH A GRINDED SURFACE AND PROCEDURE FOR ITS MANUFACTURE
CH62780A CH637075A5 (en) 1979-01-26 1980-01-25 SYNTHETIC RESIN BOTTLE HAVING A POLISHED SURFACE AND MANUFACTURING METHOD.
FR8001625A FR2447326A1 (en) 1979-01-26 1980-01-25 CONTAINER IN THE FORM OF A BOTTLE OF SYNTHETIC RESIN WITH DEFROSHED SURFACE AND METHOD FOR MANUFACTURING THE SAME
US06/546,077 US4481163A (en) 1979-01-26 1983-10-28 Method of manufacturing a bottle-shaped container of synthetic resin having ground surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP844779A JPS55100131A (en) 1979-01-26 1979-01-26 Pearl-glossy synthetic resin bottle and its manufacture

Publications (2)

Publication Number Publication Date
JPS55100131A JPS55100131A (en) 1980-07-30
JPS6216170B2 true JPS6216170B2 (en) 1987-04-10

Family

ID=11693371

Family Applications (1)

Application Number Title Priority Date Filing Date
JP844779A Granted JPS55100131A (en) 1979-01-26 1979-01-26 Pearl-glossy synthetic resin bottle and its manufacture

Country Status (1)

Country Link
JP (1) JPS55100131A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2833317B2 (en) * 1992-01-16 1998-12-09 凸版印刷株式会社 Blow molding die, method of manufacturing blow molding die, and blow molding method
WO2001006981A1 (en) * 1999-07-26 2001-02-01 Kolon Industries, Inc. A suckling bottle for baby, and a process of preparing the same
USD817173S1 (en) * 2014-12-25 2018-05-08 Dai Nippon Printing Co., Ltd. Preform for bottles
JP7278890B2 (en) * 2019-06-28 2023-05-22 株式会社吉野工業所 Flat bottle and its manufacturing method

Also Published As

Publication number Publication date
JPS55100131A (en) 1980-07-30

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