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WO2001030565A1 - Lamine de transfert graphique - Google Patents

Lamine de transfert graphique Download PDF

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Publication number
WO2001030565A1
WO2001030565A1 PCT/ZA2000/000204 ZA0000204W WO0130565A1 WO 2001030565 A1 WO2001030565 A1 WO 2001030565A1 ZA 0000204 W ZA0000204 W ZA 0000204W WO 0130565 A1 WO0130565 A1 WO 0130565A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
display
adhesive
carrier
layers
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.)
Ceased
Application number
PCT/ZA2000/000204
Other languages
English (en)
Inventor
Hugh Neville Glenister
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AU18221/01A priority Critical patent/AU1822101A/en
Publication of WO2001030565A1 publication Critical patent/WO2001030565A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0036—Heat treatment
    • B32B38/004—Heat treatment by physically contacting the layers, e.g. by the use of heated platens or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/408—Matt, dull surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/02—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
    • B32B2309/12—Pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2327/00—Polyvinylhalogenides
    • B32B2327/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2451/00—Decorative or ornamental articles

Definitions

  • This invention relates to laminates used for transferring graphics onto substrates such as fabrics.
  • graphics includes 2D designs, lettering for example.
  • the adhesive can be activated by heat, pressure, solvents or other suitable means.
  • a problem with one known method is that because the graphics are bonded to the fabric one by one (in the case of a design comprising more than one graphic, such as numbers), it is difficult to align the graphics properly. The method is also time-consuming.
  • a pigmented vinyl (e.g. PVC) graphic can be transferred onto a substrate (e.g. a garment) by making use of a layered material.
  • the material consists of an adhesive layer, a so-called display layer (which is the pigmented vinyl layer) and a carrier layer.
  • the display layer forms the centre of the laminate and is attached to the carrier layer either by adhesive or melt fusion of the carrier layer.
  • the method of applying the graphic to the substrate using the aforementioned material comprises the steps of first cutting the outlines of the graphic through the adhesive and display layers, but not through the carrier layer. The portions of the adhesive and display layers not forming part of the graphic are then peeled away from the carrier layer. This leaves only the graphic consisting of an adhesive and display layers laminated on the carrier layer.
  • the sheet is turned upside down, leaving the carrier layer on top and the adhesive layer at the bottom.
  • the sheet is laid down on the material and the adhesive is activated through the action of heat and pressure, causing the adhesive layer to bond with the material.
  • the carrier layer is removed from the display layer. This leaves the display layer bonded to the fabric by the action of the adhesive layer. This is the type of process described by Liebe in US Patent 3,660,212.
  • a problem with this method is the fact that for most of the commercially available laminates, the carrier and display are bonded to each other by the action of an adhesive layer.
  • the laminate then includes a first adhesive layer between the carrier and display layers) and a second adhesive layer (between the display layer and the material).
  • the first adhesive layer is selected to have lower adhesion than the second adhesive layer at the temperature of application to the material.
  • the carrier layer can therefor only be removed from the display layer whilst it is still hot. These are known as hot peel laminates.
  • the adhesive layer is also bonded to the display layer by adhering the adhesive layer to the newly cured display layer while it's temperature is still greater than the melting point of the adhesive layer. It also provides that pressure sensitive or solvent activated adhesives can be applied to the display layer instead of the thermally activated adhesives.
  • a process for the manufacturing of laminate for use in transferring a graphic onto a substrate and having a display layer and a carrier layer comprising the steps of laminating a display layer and a carrier layer of suitable synthetic resin materials by subjecting the layers under tension to sufficient heat and pressure to adhere the layers together at a temperature below the softening of either layer and thereafter applying a suitable adhesive to the unlaminated surface of the display layer.
  • the invention also provides for the tension, heat and pressure to be applied by passing the layers together over at least one hot roller.
  • the adhesive layer is further provided for the adhesive layer to be applied by spraying, casting or laminating. There is still further provided for the adhesive to be thermally activated or pressure sensitive or solvent activated or any combination of the above and having a bonding strength greater than that formed between the carrier and display layers.
  • the display layer is formed from PVC and for the carrier layer to be formed from polyester and for the temperature applied to the display and carrier layers during lamination to be between 110 C and 149 C.
  • a further feature of the invention provides for at least one of the surfaces of the carrier layer to be matted, and for the matting to be done by scouring the surface with a scouring means.
  • the scouring means prefferably be sandpaper or the like.
  • FIG. 1 is a diagrammatic representation of a process for producing a laminate used for transferring a graphic onto a substrate.
  • FIG. 2 is an enlarged view of laminate comprising a polyester carrier layer and PVC display layer.
  • FIG. 3 is an enlarged view of a laminate comprising a polyester carrier layer, PVC display layer and thermally activated adhesive layer.
  • a process of manufacturing a laminate is provided.
  • the laminate is for use in the transfer of a PVC graphic to the fabric of a garment.
  • Figure 1 shows a layout of the lamination process.
  • PVC film (1 ) and polyester film (2) are fed over a heated roller (3).
  • the two films are then passed over a siliconised cold roller (4).
  • the films (1 , 2) are kept at a constant tension by the use of feed rolls (not shown).
  • the effect of the heat of the hot roller (3) and pressure caused by the tension in the films is to cause the two films to adhere to each other at a temperature below the softening temperature of either the PVC or the polyester.
  • the product formed is a laminate (5) of which greater detail is shown in Figure 2.
  • the laminate consists of a carrier layer (20), which is the polyester film (2), and a display layer (21), which is the PVC film (1 ).
  • the bond (22) between the carrier layer (20) and display layer (21 ) is semi-permanent. This means that the display layer (21 ) will adhere to the carrier layer (20) with enough strength to permit handling of the laminate, but not so much that it does not permit removal of the carrier layer (20) from the display layer (21) by what is known as "cold peeling".
  • the force required for separating the carrier layer (20) and display layer (21) is about 1 N force at operative temperatures.
  • the laminate (5) is passed through a spraying station (6) where a hot melt adhesive (7) is sprayed on the display layer (21).
  • the adhesive (7) bonds with the display layer (21).
  • the melting point of the adhesive (7) is around 110 C and that of the display layer (21 ) is around 180 C.
  • the melting point of the carrier layer (20) is around 240 C.
  • the adhesive (7) is heated to its melting point before spraying it on the display layer (21).
  • the three layer laminate (8) is coiled into a roll (10) using a suitable upcoiler (11 ).
  • the process is run on a continuous basis by using an accumulator (9) between the spraying station (6) and upcoiler (11).
  • the three-layer laminate coil (10) is packed and is ready for use.
  • This use is effected generally in the conventional manner by placing the laminate on a surface with the adhesive (23) side facing upwards. Next the outlines of a graphic is cut through the adhesive (23) and display (21) layers, without cutting into the carrier layer (20). All of the adhesive (23) and display (21 ) layers falling outside the outlines of the cut graphic are then peeled away. This leaves only the cut graphic layer comprising the adhesive (23) and display (21 ) layers on the carrier (20) layer. The laminate is then turned around, which leaves the carrier layer (20) on top. The adhesive layer (23) is then bonded to the fabric (not shown) by heat applied to the carrier layer to cause the temperature of the adhesive layer (23) to rise above its softening point but not to above the softening point of the display layer (21). This causes the adhesive layer (23) to bond the display layer (21 ) and material (not shown) to each other.
  • the carrier layer (20) can be removed. It can be removed immediately, during the cooling down of the laminate or after the laminate has cooled down.
  • an adhesive layer (23) that is activated by a mechanism other than temperature, such as pressure, solvents etc.
  • polyester of which one surface has been matted for the carrier layer.
  • the polyester is matted by sanding it with sandpaper. This gives the polyester a mat finish which appeals to some customers.
  • the adhesive (7) can also be applied in any convenient manner at the spraying station (6) and not only spraying. It can, for example, be applied using knife spread casting, lamination etc.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un procédé relatif à la fabrication d'un laminé de transfert graphique (8) à couche de présentation (1, 21) et couche support (2, 20), qui consiste à laminer les couches par application de tension, de chaleur et de pression, et à appliquer une couche adhésive (7, 23) au laminé (8).
PCT/ZA2000/000204 1999-10-28 2000-10-27 Lamine de transfert graphique Ceased WO2001030565A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU18221/01A AU1822101A (en) 1999-10-28 2000-10-27 Graphic transfer laminate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA99/6784 1999-10-28
ZA996784 1999-10-28

Publications (1)

Publication Number Publication Date
WO2001030565A1 true WO2001030565A1 (fr) 2001-05-03

Family

ID=25587964

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2000/000204 Ceased WO2001030565A1 (fr) 1999-10-28 2000-10-27 Lamine de transfert graphique

Country Status (2)

Country Link
AU (1) AU1822101A (fr)
WO (1) WO2001030565A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4544590A (en) * 1982-03-17 1985-10-01 Miller Products, Inc. Laminated member and method of making same
US4767654A (en) * 1985-10-18 1988-08-30 United Merchants & Manufacturers, Inc. Detachable coupon label
EP0569921A1 (fr) * 1992-05-14 1993-11-18 Decora, Incorporated Matériau décoratif et autocollant pour le revêtement de surfaces

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4544590A (en) * 1982-03-17 1985-10-01 Miller Products, Inc. Laminated member and method of making same
US4767654A (en) * 1985-10-18 1988-08-30 United Merchants & Manufacturers, Inc. Detachable coupon label
EP0569921A1 (fr) * 1992-05-14 1993-11-18 Decora, Incorporated Matériau décoratif et autocollant pour le revêtement de surfaces

Also Published As

Publication number Publication date
AU1822101A (en) 2001-05-08

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