WO2002006127A1 - Boite en acier etame pour fruits de couleur claire - Google Patents

Boite en acier etame pour fruits de couleur claire Download PDF

Info

Publication number
WO2002006127A1
WO2002006127A1 PCT/US2001/008214 US0108214W WO0206127A1 WO 2002006127 A1 WO2002006127 A1 WO 2002006127A1 US 0108214 W US0108214 W US 0108214W WO 0206127 A1 WO0206127 A1 WO 0206127A1
Authority
WO
WIPO (PCT)
Prior art keywords
tin
coating
pounds
unit area
base box
Prior art date
Application number
PCT/US2001/008214
Other languages
English (en)
Inventor
George J. Tarulis
Original Assignee
Crown Cork & Seal Technologies Corporation
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 Crown Cork & Seal Technologies Corporation filed Critical Crown Cork & Seal Technologies Corporation
Priority to EP01916665A priority Critical patent/EP1412252A4/fr
Priority to AU2001243660A priority patent/AU2001243660A1/en
Priority to CA002411910A priority patent/CA2411910A1/fr
Publication of WO2002006127A1 publication Critical patent/WO2002006127A1/fr

Links

Classifications

    • 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
    • B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
    • B65D7/42—Details of metal walls
    • 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
    • B65D1/12—Cans, casks, barrels, or drums
    • B65D1/14—Cans, casks, barrels, or drums characterised by shape
    • B65D1/16—Cans, casks, barrels, or drums characterised by shape of curved cross-section, e.g. cylindrical
    • B65D1/165—Cylindrical cans
    • 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
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/14—Linings or internal coatings
    • 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
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/34—Coverings or external coatings

Definitions

  • This invention relates in general to packaging for foodstuffs, and more particularly to a tin-coated can for packaging certain light colored fruits and vegetables, such as pineapples, peaches and pears that require an exposed tin surface to maintain proper coloration.
  • a two-piece can is characterized by a bottom end that is unitary with the sidewall of the can, and a separate top end that is secured to the sidewall.
  • Most of the cans in which soft drinks are packaged today are two-piece drawn wall ironed (DWI) cans.
  • DWI drawn wall ironed
  • a three-piece can is characterized by a sidewall portion and separate top and bottom end that are fastened to the can body, usually by a double seaming process.
  • Certain light colored fruits and vegetables such as pineapples, peaches and pears require an exposed tin interior can surface to maintain proper coloration.
  • the tin material has long been known to have a bleaching effect on the fruit to prevent such discoloration.
  • it has been typical to make packaging for such light colored fruits and vegetables with the three-piece can making process.
  • the main reason for this is that it has generally been felt that the tin coating on tin-coated stock steel material would be unlikely to survive intact the manufacturing process that is used to manufacture DWI cans.
  • specialized presses known as body makers are used to draw cup-shaped metallic can blanks into the elongated, thin can bodies with which consumers are familiar. During this process, an enormous amount of heat and friction is generated.
  • DWI cans it is known to use DWI cans to package such products with an enamel material protecting the inside surface of the can body, but this is in general considered inferior to the standard three- piece can having the interior exposed tin surface.
  • a DWI can for packaging foodstuffs such as light colored fruits and vegetables includes a bottom; a sidewall integral with the bottom, the sidewall comprising a steel substrate, a first coating comprising tin on an outer surface thereof and a second coating comprising tin on an inner surface thereof, the second coating having a mass per unit area that is at least 30 pounds of tin per base box; and a top end secured to the sidewall.
  • a method of making packaging for light colored fruits includes steps of providing a base material having a steel substrate, a first layer of tin material on a first side of the substrate and a second layer of tin material on a second side of said substrate, forming the base material into a can body for a DWI can having a bottom surface and a sidewall comprising an exterior surface that has a first coating including tin and an interior surface having a second coating also including tin, inserting foodstuffs into the can body so that the foodstuffs are exposed to the tin surface, and applying a top end to the can body.
  • FIGURE 1 is a fragmentaiy cross-sectional view depicting a base material that is used according to a preferred embodiment of the invention
  • FIGURE 2 is a fragmentary cross-sectional view depicting an intermediate blank that is used according to a preferred embodiment of the invention
  • FIGURE 3 is a diagrammatical fragmentary cross-sectional view depicting a DWI can constructed according to the preferred embodiment of the invention
  • FIGURE 4 is a fragmentary cross-sectional view depicting a sidewall of the DWI can shown in FIGURE 3;
  • FIGURE 5 is a flowchart depicting a process that is perfo ⁇ ned according to the preferred embodiment of the invention.
  • a DWI can 10 that is constructed according to a preferred embodiment of the invention is best shown in FIGURE 3.
  • the DWI can 10 includes a bottom 12 and a sidewall 14 that is unitary with the bottom 12.
  • the assembled DWI can 10 will further include a top end 16, which is preferably applied to the upper end of the sidewall 14 through the conventional double-seaming process.
  • the DWI can 10 is preferably fabricated from a base material 18 that includes a substrate 20 which is preferably fabricated from a ferrous material such as steel, a first layer 22 of a material that includes tin, and a second layer 24 of a material that also includes tin.
  • the first layer 22 is formed of tin, and is applied to the substrate 20 at a mass per unit area that is at least 100 pounds per base box. More preferably, the layer of tin 22 is applied at a mass per unit area that is at least 120 pounds per base box, and is most preferably applied so as to have a mass per unit area that is at least 135 pounds per base box.
  • the second layer 24 is also preferably tin, and is preferably applied at a mass per unit area that is at least 20 pounds per base box, and is more preferably at least 25 pounds per base box. Most preferably, the second layer 24 is applied so as to have at least 30 pounds of tin per base box.
  • the base material 18 is first formed into a cup-like blank 26, which is then drawn and ironed into the DWI can body that is depicted in FIGURE 3. According to the preferred embodiment of the invention, this is performed so that the sidewall 14 of the resulting DWI can body 10 has mimimal tin reduction on both the first, exterior tin coating 34 and the second, interior tin coating 36.
  • the second coating 36 of tin material that is on the interior surface 28 is preferably attached to the substrate 32 of the sidewall 14 at a mass per unit area that is at least 30 pounds of tin per base box. More preferably, the second coating 36 has a mass per unit area density of at least 40 pounds per base box, and most preferably this mass per unit area density is at least 50 pounds per base box.
  • any protective materials such as an enamel coating on to the interior surface of the sidewall 14.
  • the body of the DWI can After the body of the DWI can has been formed, it is filled with product, such as light colored fruits and vegetables, and then the container is sealed by applying the top end 16. The packaged product may then be shipped to the consumer, with the presence of the unbroken coating 36 of tin on the interior surface 28 of the sidewall 14 of the can 10 ensuring that the product will not darken prior to being used by the ultimate consumer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

L'invention concerne un procédé permettant de produire un conditionnement pour des fruits de couleur claire. Ce procédé consiste à préparer un matériau (18) de base comprenant un substrat (20) d'acier, à disposer une première couche de matériau (22) à base d'étain sur la première face du substrat (20) et une seconde couche de matériau (24) à base d'étain sur la seconde face du substrat (20), à former le matériau de base pour produire un corps de boîte de type embouti-étiré comprenant une surface de fond, et une paroi latérale dont la surface extérieure est recouverte d'un premier revêtement comprenant de l'étain, et dont la surface intérieure est recouverte d'un second revêtement comprenant également de l'étain, à introduire des produits alimentaires dans le corps de boîte de manière que ces produits entrent en contact avec la surface étamée, et à appliquer l'élément supérieur sur le corps de boîte.
PCT/US2001/008214 2000-07-18 2001-03-14 Boite en acier etame pour fruits de couleur claire WO2002006127A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP01916665A EP1412252A4 (fr) 2000-07-18 2001-03-14 Boite en acier etame pour fruits de couleur claire
AU2001243660A AU2001243660A1 (en) 2000-07-18 2001-03-14 Tinned iron can for light colored fruits
CA002411910A CA2411910A1 (fr) 2000-07-18 2001-03-14 Boite en acier etame pour fruits de couleur claire

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US61843500A 2000-07-18 2000-07-18
US09/618,435 2000-07-18

Publications (1)

Publication Number Publication Date
WO2002006127A1 true WO2002006127A1 (fr) 2002-01-24

Family

ID=24477656

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/008214 WO2002006127A1 (fr) 2000-07-18 2001-03-14 Boite en acier etame pour fruits de couleur claire

Country Status (5)

Country Link
US (2) US20040134912A1 (fr)
EP (1) EP1412252A4 (fr)
AU (1) AU2001243660A1 (fr)
CA (1) CA2411910A1 (fr)
WO (1) WO2002006127A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5601467B2 (ja) * 2010-11-16 2014-10-08 東洋製罐株式会社 金属容器及びその製造方法
USD787952S1 (en) 2012-08-29 2017-05-30 Ball Corporation Contoured neck for a beverage container
US20140263372A1 (en) * 2013-03-15 2014-09-18 Silgan Containers Llc Container with concentric segmented can bottom

Citations (5)

* Cited by examiner, † Cited by third party
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US414850A (en) * 1889-11-12 William e
US1206379A (en) * 1914-03-09 1916-11-28 American Can Co Sheet-metal container for the preservation of food.
US1811160A (en) * 1928-06-05 1931-06-23 Continental Can Co Container for food products
US1994276A (en) * 1933-03-16 1935-03-12 Jones & Laughlin Steel Corp Bimetallic article
US2530413A (en) * 1945-10-29 1950-11-21 Crown Cork & Seal Co Container

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US3468769A (en) * 1967-03-15 1969-09-23 Du Pont Process for producing tin plate of high corrosion resistance
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US3765206A (en) * 1969-09-05 1973-10-16 Bethlehem Steel Corp Method of forming coated seamless containers
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Publication number Priority date Publication date Assignee Title
US414850A (en) * 1889-11-12 William e
US1206379A (en) * 1914-03-09 1916-11-28 American Can Co Sheet-metal container for the preservation of food.
US1811160A (en) * 1928-06-05 1931-06-23 Continental Can Co Container for food products
US1994276A (en) * 1933-03-16 1935-03-12 Jones & Laughlin Steel Corp Bimetallic article
US2530413A (en) * 1945-10-29 1950-11-21 Crown Cork & Seal Co Container

Non-Patent Citations (1)

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Title
See also references of EP1412252A4 *

Also Published As

Publication number Publication date
CA2411910A1 (fr) 2002-01-24
US20040134912A1 (en) 2004-07-15
US20070157573A1 (en) 2007-07-12
EP1412252A1 (fr) 2004-04-28
EP1412252A4 (fr) 2007-09-05
AU2001243660A1 (en) 2002-01-30

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