WO2007066310A2 - Recipient comprenant une etiquette dans le moule placee a proximite d’une topographie de surface - Google Patents

Recipient comprenant une etiquette dans le moule placee a proximite d’une topographie de surface Download PDF

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Publication number
WO2007066310A2
WO2007066310A2 PCT/IB2006/054664 IB2006054664W WO2007066310A2 WO 2007066310 A2 WO2007066310 A2 WO 2007066310A2 IB 2006054664 W IB2006054664 W IB 2006054664W WO 2007066310 A2 WO2007066310 A2 WO 2007066310A2
Authority
WO
WIPO (PCT)
Prior art keywords
container
mold label
copolymers
polyethylene
mold
Prior art date
Application number
PCT/IB2006/054664
Other languages
English (en)
Other versions
WO2007066310A3 (fr
Inventor
Roberto Escobosa
Paul Owen Nutley
Michael Dean Mccutchan
Dean Arthur Zimmerman
Original Assignee
The Procter & Gamble Company
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 The Procter & Gamble Company filed Critical The Procter & Gamble Company
Priority to EP06832146A priority Critical patent/EP1957374A2/fr
Publication of WO2007066310A2 publication Critical patent/WO2007066310A2/fr
Publication of WO2007066310A3 publication Critical patent/WO2007066310A3/fr

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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
    • B65D23/00—Details of bottles or jars not otherwise provided for
    • B65D23/08—Coverings or external coatings
    • B65D23/0842—Sheets or tubes applied around the bottle with or without subsequent folding operations
    • B65D23/0864—Applied in mould
    • 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
    • B65D23/00—Details of bottles or jars not otherwise provided for
    • B65D23/10—Handles
    • B65D23/102—Gripping means formed in the walls, e.g. roughening, cavities, projections
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/04—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps to be fastened or secured by the material of the label itself, e.g. by thermo-adhesion
    • 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
    • B29C49/24—Lining or labelling
    • B29C2049/2412—Lining or labelling outside the article
    • 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
    • B29C49/24—Lining or labelling
    • B29C2049/2464—Means for verifying or keeping the position of the lining or label, e.g. sensors, or attachment on mould wall
    • B29C2049/2466—Means for verifying or keeping the position of the lining or label, e.g. sensors, or attachment on mould wall using electrostatic force
    • 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
    • B29C49/24—Lining or labelling
    • B29C2049/2464—Means for verifying or keeping the position of the lining or label, e.g. sensors, or attachment on mould wall
    • B29C2049/2472—Means for verifying or keeping the position of the lining or label, e.g. sensors, or attachment on mould wall using vacuum
    • 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
    • B29C49/24—Lining or labelling
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B29K2023/0608—PE, i.e. polyethylene characterised by its density
    • B29K2023/0625—LLDPE, i.e. linear low density polyethylene
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B29K2023/0608—PE, i.e. polyethylene characterised by its density
    • B29K2023/0633—LDPE, i.e. low density polyethylene
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B29K2023/0608—PE, i.e. polyethylene characterised by its density
    • B29K2023/0641—MDPE, i.e. medium density polyethylene
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B29K2023/0608—PE, i.e. polyethylene characterised by its density
    • B29K2023/065—HDPE, i.e. high density polyethylene
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/08—Copolymers of ethylene
    • B29K2023/083—EVA, i.e. ethylene vinyl acetate copolymer
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • 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
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • 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
    • B29K2067/04—Polyesters derived from hydroxycarboxylic acids
    • B29K2067/046—PLA, i.e. polylactic acid or polylactide
    • 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
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
    • 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
    • B65D2203/00—Decoration means, markings, information elements, contents indicators
    • B65D2203/02—Labels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
    • Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics

Definitions

  • the present invention relates to a container for liquid compositions comprising a surface topography, a reservoir comprising a liquid composition and an in-mold label positioned proximate to the surface topography thereby increasing the resilience of the container.
  • Liquid composition such as shampoos, conditioners, bodywash, in-shower moisturizers, lotions, detergents, toothpaste, ketchup and the like are commonly packaged in blow molded containers.
  • Consumers desire a container from which it is easy to dispense the contents.
  • dispensing is effected by the geometry of the container, orientation (e.g., inverted containers also known as "tottles"), material, orifice design and thickness of the container.
  • orientation e.g., inverted containers also known as "tottles”
  • material e.g., inverted containers also known as "tottles”
  • thickness of the container e.g., a high degree of resilience is desirable as consumers often need to squeeze the container several times to dispense enough product.
  • An increase in thickness of the squeezable wall may result in an increase of the resilience, and said wall may reform its shape quicker.
  • Labels are commonly comprised on these containers for decoration purposes and to provide information to the user, such as the composition's formula, or the method of use. Labels also may improve the intrinsic properties of containers, such as the deformation characteristics and restorative capability after squeezing.
  • in-mold label One type of label that is used is an in-mold label.
  • the most common process for in-mold labeling is blow molding.
  • In-mold labeling during production of containers by blow molding is known in the prior art.
  • a label is laid in the opened blow mold, usually by a robot, in such a way that the printed outside of the label is in contact with the mold wall, and the unprinted inside faces the blow molding to be shaped.
  • the still- molten surface of the polymer composition comes into close contact with the label and bonds thereto to give a label ed container.
  • the label is either, particularly in the case of simple in-label shapes, supplied in roll form and cut to size at the blow-molding machine ("cut in place") or, in the case of more complex label shapes, cut to size in advance and away from the blow-molding machine, stacked and later segregated from the stack at the blow-molding machine (cut & stack process) and introduced individually into the respective blow mold.
  • Films made from thermoplastics have recently increasingly been used for the in-mold labeling of containers.
  • the films which are suitable for a use of this type have to have a selected property profile in order to ensure that the in-mold label 6 and mold nestle against one another in a flat and bubble-free manner and for the label to properly bond to the container.
  • Known labels result in bubbles and wrinkles if there is surface texture present such as a ridge on the face of the container. Bubbles and other optical defects occur more often in containers that have surface topographies with high degree of curvature and when the labels are thinner than 4.5 mils.
  • the object of the present invention was to provide an inexpensive method of decorating highly curved or texturized surfaces through an in-mold label that also helps to improve the resilience of a container comprising a liquid composition.
  • the object on which the invention is achieved is by the use of a film comprising at least one layer selected from the group consisting of polyethylene, copolymers of polyethylene, polypropylene, copolymers of polypropylene, nylon, polyester, copolymers of polyester, polylactic acid, cellophane, polyvinyl chloride, ionomers, ethylene- acrylic acid copolymers, metallocene polyethylene, metallocene polypropylene, and mixtures thereof having a thickness of at least 4.5 mils.
  • the present invention is directed to a container for liquid compositions comprising a reservoir comprising a liquid composition, a surface topography, and an in-mold label positioned proximate to the surface topography.
  • the surface topography selected from the group consisting of ridges, valleys, a grooves, dimples, depressions, bumps, convexity, concavity, ribs, protrusions, curves, raised surfaces or other surface topography.
  • the in-mold label has a thickness of at least 4.5 mils.
  • the in-mold label is comprised of a material selected from the group consisting of polyethylene, copolymers of polyethyene, polypropylene, copolymers of polypropylene, nylon, polyester, copolymers of polyester, polylactic acid, cellophane, polyvinyl chloride, ionomers, ethylene- acrylic acid copolymers, metallocene polyethylene, metallocene polypropylene, and mixtures thereof.
  • the present invention also includes a method of increasing resiliency in containers for liquid compositions.
  • FIG. 1 illustrates a perspective view of the container of the present invention is a bottle.
  • FIG. 2 illustrates a perspective view of the container of the present invention is a tottle.
  • ambient conditions refers to surrounding conditions at one (1) atmosphere of pressure, 50% relative humidity, and 25°C.
  • bottle as used herein, is a hollow rigid or semi-rigid container having a comparatively narrow dispensing end (neck or mouth). The dispensing end (neck or mouth) is typically the end where the bottle's contents is filled into and dispensed from.
  • liquid composition refers to the compositions of the present invention, wherein the compositions are intended to include, but are not limited to, compositions for topical application to the skin, hair, teeth, body, surfaces, and fabric fibers.
  • Such compositions can include, but are not limited to, shampoos, conditioners, tooth cleansers, hair styling products, cleaners, soaps, cosmetics, foundations, antiperspirants, deodorants, lotions, creams, ointments, kitchen and bathroom cleansers, floor cleansers, dishwashing liquid, fabric softener, laundry detergent, fabric freshener, snacks, beverages, combinations thereof, and the like.
  • mapping refers to a striped design with a veined and/or mottled appearance similar to marble.
  • phase refers to a homogeneous, physically distinct, and mechanically separable portion of matter present in a non-homogeneous physical-chemical system.
  • the phases herein are compositions with different colors.
  • the phases comprise the same chemical compositions but with different colorants.
  • compositions of the present invention refers to the compositions of the present invention, wherein the compositions are intended to include compositions for topical application to the skin or hair.
  • Such personal care compositions can include, but are not limited to, shampoos, conditioners, hair styling products, cleansers, soaps, cosmetics, foundations, anti-perspirants, deodorants, lotions, creams, ointments, combinations thereof, and the like.
  • a personal care composition comprises at least two phases that are present within the container as distinct layers or "stripes.”
  • the stripes may be relatively uniform and even across the dimension of the package.
  • the layers may be uneven, i.e. wavy, or may be non-uniform in dimension.
  • the stripes do not necessarily extend across the entire dimension of the package.
  • the "stripe' can comprise various geometric patterns, various colors and, or glitter or pearlescence, providing that the concentration of said alternative forms visually distinct bands or regions.
  • surface topography selected from the group consisting of ridges, valleys, a grooves, dimples, depressions, bumps, convexity, concavity, ribs, protrusions, curves, raised surfaces or other surface topography.
  • tottle refers to a bottle which rests on neck or mouth which its contents are filled in and dispensed from, but it is also the end upon which the bottle is intended to rest or sit upon (e.g., the bottle's base) for storage by the consumer and/or for display on the store shelf (this bottle is referred to herein as a "tottle”).
  • the closure on a tottle is flat or concave, such that the tottle, when stored, rests on the closure.
  • the closure can be, for example, a cap, flip-top, screw-on, screw-on flip-top cap, etc.
  • compositions in the package or upon being dispensed that display visually different phases. These different phases are either distinctively separate or partially mixed as long as the multiple phase composition remains visible to the naked eye.
  • the present invention is directed towards a container 2 for compositions as shown in FIG. 1 and FIG. 2.
  • the container has a dispensing end 10 and a non-dispensing end 12.
  • the dispensing end has a closure 14.
  • the container 2 is a bottle 16 with a flat closure 14.
  • the container 2 is a tottle 18.
  • a clear or opaque container 2 is used.
  • the container 2 is made from a polyolefin, such as polypropylene, polyethylene (e.g., linear low density, low density, medium density, high density, copolymers such as ethylene, vinyl, and acetate), polyethylene terephthalate and co-polymers, and nylon.
  • the container 2 is a bottle 16 that is filled from the dispensing end 10.
  • the closure 14 on a tottle 18 is flat or concave, such that the tottle, when stored, rests on the closure.
  • the closure 14 can be, for example, a cap, flip-top, screw-on, screw-on flip-top cap, , etc.
  • a tottle 18 can be a preferred container 2. If a tottle 18 is used, the personal care composition can be stored with the end from which it was filled facing downward. This avoids the need to tip the container 2 over to dispense product upon each usage by the consumer, thus eliminating the movement of air bubble(s) through the length of the product in the package upon each usage occasion by the consumer. Movement of air bubble(s) through the length of the product is undesirable from an aesthetic standpoint, as this can disrupt the attractive appearance of a product having visually distinct phases. This loss of product attractiveness undesirably detracts from the consumer's enjoyment of the product.
  • the container 2 is a bottlel ⁇ that can stand on either end in an upright position.
  • the container 2 comprises a reservoir 4 containing a liquid composition and an in-mold label 6.
  • the in-mold label 6 has a thickness of at least 4.5 mils; the in-mold label 6 comprising a film selected from the group of polyethylene, copolymers of polyethylene, polypropylene, copolymers of polypropylene, nylon, polyester, copolymers of polyester, polylactic acid, cellophane, polyvinyl chloride, ionomers, ethylene- acrylic acid copolymers, metallocene polyethylene, metallocene polypropylene, and mixtures thereof.
  • Types of polyethylenes include high density polyethylene (HDPE), medium density polyethylene (MDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE).
  • Copolymers of polyethylene include polyethylene copolymers such as ethylene vinyl acetate (EVA) or ethylene.
  • the in-mold labeling process consists of placing an in-mold label 6 in an open mold in which the in-mold label 6 is held in place by vacuum, electrostatic or other means. The mold is closed and the molten plastic is forced into the mold. In-mold labeling can be done using injection or blow molding, however blow molding is the preferred process. In blow molding, air is introduced into the mold cavity which forces the molten resin in contact with the in-mold label 6 which fuses to the container 2.
  • in-mold labeling produces excellent aesthetics as the in-mold label 6 fuses with the container 2 during the molding process. With a clear in-mold label 6, the appearance can often be similar to printing on the container 2. Printing onto a curved surface can be very difficult and requires an additional step. Printing onto a plastic surface can result in scuffing or smearing which is undesirable. With in-mold labeling, no additional printing or labeling step is required thus making it a very efficient process.
  • Blow molded containers 2 can be made from polyethylene and polyethylene copolymers including high density polyethylene (HDPE), medium density polyethylene (MDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), polyamide resins, ionomer resins, polyvinylchloride, ethylene vinyl acetate (EVA), polyester (PET) and polyester copolymers, polypropylene (PP and mixtures thereof.
  • HDPE high density polyethylene
  • MDPE medium density polyethylene
  • LDPE low density polyethylene
  • LLDPE linear low density polyethylene
  • polyamide resins polyamide resins
  • ionomer resins polyvinylchloride
  • EVA ethylene vinyl acetate
  • PET polyester copolymers
  • PP polypropylene
  • in-mold labeling is that it can be difficult for an in-mold label 6 to be placed over a surface topography with high curvature such as a ridge or valley as air can become trapped underneath the in-mold label 6 which is not desirable for consumers especially when a "no-label" look is desired. Also, the surface topography can make the label material fold on itself upon blowing of the container thereby creating an undesirable wrinkle or crease.
  • the present invention overcomes these limitations by using a thick in-mold label 6 that is capable of being applied in-mold without entrapment of air and which is not as susceptible to wrinkling or creasing.
  • in-mold labels 6 are placed on containers 2 with smooth surfaces. It was previously difficult to use in-mold labels 6 in on a surface topography 20 or especially if that surface topography comprises a transition from a concavity to a convexity 22 or a transition from a convexity to a concavity 22 on the container 2.
  • the present invention is directed towards an in- mold label 6 of sufficient thickness that is placed over a surface topography.
  • the containers 2 of the present invention may be any shape known in the art. Most preferred are generally oval containers.
  • the containers 2 used in one of the embodiments of the present invention have at least one surface topography 20 selected from the group consisting of ridges, valleys, grooves, dimples, depressions, bumps, convexity, concavity, ribs, protrusions, curves, raised surfaces or other surface topography.
  • the surface topography 20 on the container 2 is typically positioned proximate to or on or covered by the in-mold label 6.
  • the in-mold label 6 is at least 4.5 mils in thickness.
  • the in-mold label 6 has a thickness ranging from about 4.5 mils to about 40 mils, preferably from about 6 mils to 12 mils, even more preferably from about 8 mils to 12 mils, even more preferably from about 10 mils to about 12 mils, even more preferably from about 8 mils to 20 mils; with a maximum of 40 mils.
  • a thick in-mold label 6 provides additional benefits in terms of resistance to squeezing, as the fused material becomes a structural part of the container thus improving its resilience and allowing for easier dispensing of fluids.
  • the in-mold label 6 may be made by techniques known in the art. The primary process is film extrusion. The in-mold label 6 may consist of one layer or multiple layers. A common process for producing in-mold label 6 s is co extrusion whereby the heat seal layer consists of a resin with a lower melting point than the printing surface in order to avoid any distortion. Another common process for producing in-mold labels 6 is by laminating two or more separate films with an adhesive or tie layer between each film. The in-mold label 6 may contain additional layers of paper or foil.
  • the in-mold label 6 is pre-printed/decorated before being placed in the mold using processes known in the art. Decoration may include foil, inks, paper, holograms or other techniques. Secondary labels such as coupons or instructions could also be attached.
  • the in- mold label 6 of the present invention may be multilayered having an inner layer and at least one outer layer. In some embodiments, the inner layer and the outer layer may have different melting points. In some embodiments, the inner layer may have a lower melting point that the outer layer.
  • the inner layer of the in-mold label is preferably heat sealable.
  • the film according to the invention can have three layers and can comprise co extruded layers including the base layer and at least one top layer on both sides. If desired, two-layered, four-layered, five-layered or more layered embodiments are also possible.
  • the film is preferably comprised of a polyolefin, preferably a propylene polymer, and optionally fillers and further additives in effective amounts in each case.
  • the film material is a polypropylene/polyethylene co- extruded film with an EVA adhesive layer.
  • propylene polymers comprise about 70% by weight of the material and 30% by weight of the material is polyethylene.
  • Preferred polyolefins are propylene polymers. These propylene polymers comprise from 90 to 100% by weight, preferably from 95 to 100% by weight, in particular from 98 to 100% by weight, of propylene units, and have a melting point of 120 0 C.
  • propylene polymers for the base layer, with isotactic propylene homopolymer being particularly preferred.
  • the stated percentages by weight are based on the respective polymer.
  • propylene polymer Also suitable is a mixture of said propylene homopolymers and/or copolymers and/or terpolymers with other polyolefins, in particular made from monomers having from 2 to 6 carbon atoms, where the mixture comprises at least 50% by weight, in particular at least 75% by weight, of propylene polymer.
  • Suitable other polyolefins in the polymer mixture are polyethylenes, in particular HDPE, MDPE, LDPE, VLDPE and LLDPE, where the proportion of these polyolefins is in each case not in excess of 15% by weight, based on the polymer mixture.
  • the inner surface, inner layer that comes into contact with the molten resin must be capable of forming a seal with the container 2 such that it does not easily come off.
  • the inner layer should be capable of melting at the temperature of the molten resin that is used to form the container 2.
  • the inner layer should be a heat seal layer.
  • the inner layer can be an adhesive layer.
  • the inner layer is preferably comprised of EVA or LDPE.
  • the in-mold label 6 is pre-printed/decorated before being placed in the mold using processes known in the art.
  • Decoration may include foil, inks, paper, holograms or other techniques. Secondary labels such as coupons or instructions could also be attached.
  • the outer layer of the multilayered film generally comprises at least 70% by weight, preferably from 75 to less than 100% by weight, in particular from 90 to 98% by weight, of a propylene polymer and in general antiblocking agents and stabilizers and, if desired, further conventional additives, such as lubricants, for example fatty acid amides or siloxanes, in effective amounts in each case. Preference is given to embodiments of the outer layer which comprise fatty acid amides. The above data in % by weight are based on the weight of the top layer.
  • the propylene polymer of the outer layer is preferably a copolymer of propylene and ethylene or propylene and butylene or propylene and another olefin having from 5 to 10 carbon atoms. Also suitable for the purposes of the invention are terpolymers of ethylene and propylene and butylene or ethylene and propylene and another olefin having from 5 to 10 carbon atoms. It is also possible to employ mixtures or blends of two or more of said copolymers and terpolymers.
  • ethylene-propylene copolymers and ethylene- propylenebutylene terpolymers preference is given to ethylene-propylene copolymers and ethylene- propylenebutylene terpolymers, in particular random ethylene-propylene copolymers having an ethylene content of from 2 to 10% by weight, preferably from 5 to 8% by weight, or random ethylene- propylene- 1 -butylene terpolymers having an ethylene content of from 1 to 10% by weight, preferably from 2 to 6% by weight, and a 1 -butylene content of from 3 to 20% by weight, preferably from 8 to 10% by weight, in each case based on the weight of the copolymer or terpolymer.
  • PP, OPP or BOPP films are corona- or flame- treated on one side, preferably on the outer layer, in order to anchor printing inks, metal layers or adhesives to be applied.
  • the opposite, inner layer usually remains untreated.
  • the in-mold label 6 film according to the invention proved to be particularly simple and reliable to segregate in an embodiment with corona- or flame- pretreatment on both sides.
  • the in-mold label thickness is at least 4.5 mils. In a preferred embodiment the in-mold label thickness is 7.75 mils. In a preferred embodiment the film used to make the label is FasClear® 8SFC in-mold film from Avery Dennison.
  • the in-mold labeling process consists of placing an in-mold label 6 in an open mold in which the in-mold label 6 is held in place by vacuum, electrostatic or other means. The mold is closed and the molten plastic is forced into the mold. In-mold labeling can be done using injection or blow molding, however blow molding is the preferred process. In blow molding, air is introduced into the mold cavity which forces the molten resin in contact with the in-mold label 6 which fuses to the container 2.
  • the container 2 of the present invention is typically formed by blow-molding.
  • the present invention also comprises a method of increasing resiliency of a container for liquid compositions.
  • the method comprises manufacturing a container for a liquid composition comprising a reservoir comprising a liquid composition, a surface topography selected from the group consisting of ridges, valleys, a grooves, dimples, depressions, bumps, convexity, concavity, ribs, protrusions, curves, raised surfaces or other surface topography.
  • the method comprises positioning an in-mold label proximate to said surface topography.
  • the in-mold label has a thickness of at least 4.5 mils.
  • the in-mold label is comprised of a material selected from the group consisting of polyethylene, copolymers of polyethylene, polypropylene, copolymers of polypropylene, nylon, polyester, copolymers of polyester, polylactic acid, cellophane, polyvinyl chloride, ionomers, ethylene- acrylic acid copolymers, metallocene polyethylene, metallocene polypropylene, and mixtures thereof.
  • the liquid composition of the present invention can be selected from the group consisting of personal care composition, cosmetic compositions, detergent compositions, medicaments, and foodstuffs.
  • suitable liquid compositions can include shampoos, conditioners, foundations, washes, soaps, and the like.
  • the liquid compositions used to in making the personal care compositions herein have substantially the same density and/or rheology.
  • suitable examples of compositions that can be used herein include, but are not limited to, U.S. Pat No. 4,159,028, issued June 26, 1979, in the name of Barker et al.: U.S. Pat. No. 4,335,103, issued June 15, 1982, in the name of Barker et al.; U.S. Pat. No. 6,245,344, issued June 12, 2001 in the name of Thibiant et al.; US Pat. No. 6,367,519, issued April 9, 2002, in the name of Thibiant et al.; US Pat. No. 6,516,838, issued February 11, 2003, in the name of Thibiant et al.
  • At least two liquid compositions are used that are physically distinct, preferably visually distinct.
  • the visually distinct phases are of a different color.
  • one or more phases can comprise a dye, pigment, pearlescent agent, lake, coloring, or mixtures thereof.
  • Colorants useful in the present invention can be, for example, selected from the group consisting of Red 30 Low Iron, FD&C Red 40 AL Lake, D&C Red Lake Blend of Lake 27 & Lake 30, FD&C Yellow 5 Al Lake, FD&C Yellow 6 Al Lake, FD&C Yellow 5 Lake, FD&C Blue #1 AL Lake, Ko wet Titanium Dioxide, D&C Red 30 Talc Lake, D&C Red 6 Barium Lake, D&C Red 7 Calcium Lake, D&C Red 34 Calcium Lake, D&C Red 30 AL lake, D&C Red 27 AL lake, D&C Yellow 10 AL lake, D&C Red 21 AL Lake, Yellow Iron Oxide, D&C Red 30 Lake, Octocir Yellow 6 AL Lake, Octocir Yellow 5 AL Lake, D&C Red 28 Lake, D&C Orange 5 Zirc Al Lake, Cos Red Oxide BC, Cos Iron Oxide Red BC, Cos Iron oxide Black BC, Cos Iron Oxide Yellow, Cos Iron Oxide Brown, Cos Iron Oxide Yellow BC, Euroxide Red Unsteril
  • the personal care composition comprises at least two physically distinct phases.

Abstract

La présente invention concerne un récipient pour compositions liquides comprenant un réservoir comprenant une composition liquide, une topographie de surface et une étiquette dans le moule placée à proximité de la topographie de surface de façon à améliorer la résilience du récipient. La topographie de surface est choisie dans le groupe constitué par des arêtes, des sillons, des cannelures, des encoches, des dépressions, des bosses, une convexité, une concavité, des nervures, des saillies, des courbes, des surfaces montantes ou toute autre topographie de surface. L’étiquette dans le moule a une épaisseur d’au moins 4,5 mils ; l’étiquette dans le moule étant faite à partir d'un matériau choisi dans le groupe constitué par le polyéthylène, des copolymères de polyéthylène, le polypropylène, des copolymères de polypropylène, le nylon, le polyester, des copolymères du polyester, le poly(acide lactique), la cellophane, le poly(chlorure de vinyle), des ionomères, des copolymères d’éthylène et d’acide acrylique, un métallocène polyéthylène, un métallocène polypropylène et leurs mélanges.
PCT/IB2006/054664 2005-12-08 2006-12-07 Recipient comprenant une etiquette dans le moule placee a proximite d’une topographie de surface WO2007066310A2 (fr)

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EP06832146A EP1957374A2 (fr) 2005-12-08 2006-12-07 Recipient comprenant une etiquette dans le moule placee a proximite d une topographie de surface

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US74873305P 2005-12-08 2005-12-08
US60/748,733 2005-12-08

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US20050191449A1 (en) * 2002-11-22 2005-09-01 Yupo Corporation In-mold label with separable part

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014119552A1 (fr) * 2013-01-31 2014-08-07 花王株式会社 Récipient à bouteille
WO2016162003A1 (fr) * 2015-04-06 2016-10-13 Kiefel Gmbh Procédé servant à combiner un étiquetage dans le moule et un estampage d'un produit d'emballage, ainsi qu'installation servant à combiner un étiquetage dans le moule et un estampage d'un produit d'emballage

Also Published As

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EP1957374A2 (fr) 2008-08-20
US20070163990A1 (en) 2007-07-19
WO2007066310A3 (fr) 2007-08-16
CN101326106A (zh) 2008-12-17

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