WO2024103135A1 - Substrat stratifié, procédé de préparation de substrat stratifié et procédé d'impression par sublimation avec moulage - Google Patents

Substrat stratifié, procédé de préparation de substrat stratifié et procédé d'impression par sublimation avec moulage Download PDF

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Publication number
WO2024103135A1
WO2024103135A1 PCT/BR2022/050454 BR2022050454W WO2024103135A1 WO 2024103135 A1 WO2024103135 A1 WO 2024103135A1 BR 2022050454 W BR2022050454 W BR 2022050454W WO 2024103135 A1 WO2024103135 A1 WO 2024103135A1
Authority
WO
WIPO (PCT)
Prior art keywords
laminate
laminated substrate
layer
film
sublimation
Prior art date
Application number
PCT/BR2022/050454
Other languages
English (en)
Portuguese (pt)
Inventor
Weber Luiz DE SOUZA CORREA
Original Assignee
De Souza Correa Weber Luiz
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 De Souza Correa Weber Luiz filed Critical De Souza Correa Weber Luiz
Priority to PCT/BR2022/050454 priority Critical patent/WO2024103135A1/fr
Publication of WO2024103135A1 publication Critical patent/WO2024103135A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/382—Contact thermal transfer or sublimation processes
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D17/00—Gaiters; Spats
    • A41D17/04—Puttees
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A41D31/24—Resistant to mechanical stress, e.g. pierce-proof
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • 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
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like

Definitions

  • the present invention is related to the field of laminated substrates that can be customized by a sublimation printing process.
  • the present invention describes a laminated product, such as a shin guard, and a process for preparing it.
  • Laminated substrates for use in sporting activities are already known in the prior art, such as those described in US 2002/188997, which show protective equipment, such as helmets and shin pads, containing a material that cures when exposed to light with a wavelength of 280-780 nm.
  • Document JP2017144662 describes laminated products with various purposes, such as protective equipment, where one of the layers of the laminate comprises fibers and/or filaments.
  • Document WO 2001/049139 describes shin guards comprising an outer layer that provides resistance, composed of fiberglass, a compressible intermediate layer and a lower layer that allows breathing.
  • the present invention describes a laminated substrate comprising: a) An upper layer of a polyester film; b) An intermediate layer of a thermal film; and c) A bottom layer of a rubberized polymer.
  • the top polyester layer is the layer that will receive the printing via sublimation, while the rubberized polymer layer will be in contact with the user, providing comfort when using the product.
  • the middle layer is intended to join the upper and lower layers when high temperature is applied.
  • An additional aspect of the present invention is a process for preparing a laminated substrate comprising the steps of: a) Assembling a laminate with: a. A top layer of a polyester film; B. An intermediate layer of a thermal film; and c. A bottom layer of a rubberized polymer; b) Apply heat and pressure in a flat thermal press, joining the laminate layers; c) Subject the laminate to cold pressing until completely cooled.
  • the laminate prepared by the above process is subsequently customized by a sublimation printing and molding process with gradual cooling, in order to maintain the integrity of the layers and curvature of the product.
  • the process comprises the steps of: d) Heating the laminate and sublimation printing of the desired image on a flat press; e) Gradual cooling in a cold press; and f) molding the part.
  • Figure 1 shows a diagram of the laminate layers, where: A - top layer of a polyester film; B - intermediate layer of a thermal film; and C - lower layer of a rubberized polymer.
  • Figure 2 shows the laminate after step c), where the layers were joined and the laminate was cooled.
  • Figure 3 shows the final part after molding and sublimation printing.
  • Figure 4 shows a front and back view of the shin guards molded according to the present invention.
  • Figure 5 shows a pair of molded shin guards already with sublimation printing.
  • Figure 6 shows a schematic of the finished shin guard on an athlete's leg.
  • the laminated substrate according to the present invention comprises: a) An upper layer of a polyester film (A); b) An intermediate layer of a thermal film (B); and c) A bottom layer of a rubberized polymer (C).
  • FIG 1 shows a schematic of the layers of the laminated substrate.
  • the top layer of polyester film (A) can be any commercially available polyester film. It is suitable because it has high resistance to high temperatures and low electrical conductivity.
  • the film is typically obtained by extrusion, using slotted dies; Then, the extruded material passes through rollers that give it the final film format.
  • the intermediate layer of thermal film (B) is composed of a thermal film based on TPU (Thermoplastic Polyurethane) and polyamides, and aims to unite the lower and upper layers of the laminate.
  • the lower rubberized polymer layer (C) is preferably composed of EVA, but any other type of polymer or rubberized material can be used. In a preferred embodiment, it is obtained through the polymerization of Vinyl Acetate monomer with Ethylene in a high pressure system, the result is a synthetic foam produced from its thermoplastic copolymer. Then cut into films of the desired thickness.
  • the thicknesses of each layer may vary, as they will be responsible for the properties of the final material, such as flexibility, hardness and resistance. Thus, a technician in the field will have no difficulty in determining the thickness of each layer once the parameters of the final product have been defined.
  • Thicknesses of 100, 125, 190, 250 and 350 microns are available on the industrial market for the top polyester layer, and the thickness available on the market is 0.5 mm for the intermediate layer.
  • the present invention further describes a process for preparing a laminated substrate comprising the steps of: a) Assembling a laminate with: a. A top layer of a polyester film (A); B. An intermediate layer of a thermal film (B); and c. A bottom layer of a rubberized polymer (C); b) Apply heat and pressure in a flat thermal press, joining the laminate layers; c) Subject the laminate to cold pressing until completely cooled.
  • the laminate prepared by the above process is exemplified in Figure 2. It is subsequently customized by a sublimation printing and molding process with gradual cooling, in order to maintain the integrity of the layers and curvature of the product.
  • the customization process comprises the steps of: d) Heating the laminate and sublimation printing of the desired image on a flat press; e) Gradual cooling in a cold press; and f) molding the part;
  • the cooling in step e) is a gradual cooling with the aim of maintaining the integrity of the union of the laminate layers, while maintaining a temperature high enough to facilitate the molding of the part into the desired shape.
  • part of the heat applied in the printing stage is used to shape the part.
  • An example of a molded part can be seen in Figures 3 and 4. Note that the color of the upper layer (A) changes from white/colorless to black, resulting from printing. Figure 5 shows the molded part and after printing.
  • the layers are subjected to pressure in a flat thermal press at a temperature of 150°C for a period of 15 seconds at a pressure of 3.03 Bar or 44 pounds/inch2 (psi).
  • the plate After pressing, the plate is subjected to cold pressing for 10 seconds, after this period it is placed in a screen printing dryer for 4 hours until it reaches complete cooling.
  • the pieces After being cut, the pieces must be surface-cleaned by applying a liquid compound of Saturated Aliphatic Hydrocarbon and Antioxidant, over the entire piece with the help of a dry, clean fabric to remove thermal film residues, finishing with a dry cloth.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne le domaine de substrats stratifiés qui peuvent être personnalisés par un procédé d'impression par sublimation. Notamment, la présente invention concerne un produit stratifié, tel qu'un protège-tibia, et son procédé de fabrication.
PCT/BR2022/050454 2022-11-18 2022-11-18 Substrat stratifié, procédé de préparation de substrat stratifié et procédé d'impression par sublimation avec moulage WO2024103135A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/BR2022/050454 WO2024103135A1 (fr) 2022-11-18 2022-11-18 Substrat stratifié, procédé de préparation de substrat stratifié et procédé d'impression par sublimation avec moulage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/BR2022/050454 WO2024103135A1 (fr) 2022-11-18 2022-11-18 Substrat stratifié, procédé de préparation de substrat stratifié et procédé d'impression par sublimation avec moulage

Publications (1)

Publication Number Publication Date
WO2024103135A1 true WO2024103135A1 (fr) 2024-05-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2022/050454 WO2024103135A1 (fr) 2022-11-18 2022-11-18 Substrat stratifié, procédé de préparation de substrat stratifié et procédé d'impression par sublimation avec moulage

Country Status (1)

Country Link
WO (1) WO2024103135A1 (fr)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4768234A (en) * 1985-02-15 1988-09-06 Yamamoto Kogaku Co., Ltd. Ski glove with a protector
BR9403239A (pt) * 1993-08-13 1995-04-11 Johnson & Johnson Processo de impresso, laminado em folha fina metálica, estrutura de rótulo e processo de produzir coberturas laminadas
US5733647A (en) * 1992-11-05 1998-03-31 Polymer Innovations, Inc. Insole
WO2001049139A1 (fr) * 2000-01-07 2001-07-12 University Of Leicester Dispositif d'absorption d'impacts
US20020092207A1 (en) * 2000-11-29 2002-07-18 Salomon S.A Sole for boot, in particular a sports boot, a method of manufacturing same, and a boot having such a sole
US20060042071A1 (en) * 2003-01-30 2006-03-02 Sunarrow Limited Method for making key top made of translucent material., key top marked by that method, key unit, and process for producing key unit
US20060258245A1 (en) * 2005-05-10 2006-11-16 Oliver Salzmann Multilayered material part and formed part produced therefrom
US20160083540A1 (en) * 2013-05-22 2016-03-24 Lubrizol Advanced Materials, Inc. Articles made from thermoplastic polyurethanes with crystalline chain ends
US10201954B2 (en) * 2013-05-16 2019-02-12 Tagleef Industries PTY Ltd. Metallized multi-layer structure film for in-mold labels, printed in-mold labels formed from such film and methods of applying the printed labels to an article during the molding of the article
US10357909B2 (en) * 2014-05-30 2019-07-23 Absolute Exhibits, Inc. Thermoset in-mold finishing film
BRPI1011928B1 (pt) * 2009-07-01 2020-01-28 Leonhard Kurz Stiftung & Co Kg corpo de camadas múltiplas, seu processo de produção, e processo para produzir um artigo decorado
EP3488993B1 (fr) * 2016-07-20 2021-06-16 Denka Company Limited Feuille de résine thermoplastique ayant un corps en forme de cheveux et produit moulé à partir de celle-ci

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4768234A (en) * 1985-02-15 1988-09-06 Yamamoto Kogaku Co., Ltd. Ski glove with a protector
US5733647A (en) * 1992-11-05 1998-03-31 Polymer Innovations, Inc. Insole
BR9403239A (pt) * 1993-08-13 1995-04-11 Johnson & Johnson Processo de impresso, laminado em folha fina metálica, estrutura de rótulo e processo de produzir coberturas laminadas
WO2001049139A1 (fr) * 2000-01-07 2001-07-12 University Of Leicester Dispositif d'absorption d'impacts
US20020092207A1 (en) * 2000-11-29 2002-07-18 Salomon S.A Sole for boot, in particular a sports boot, a method of manufacturing same, and a boot having such a sole
US20060042071A1 (en) * 2003-01-30 2006-03-02 Sunarrow Limited Method for making key top made of translucent material., key top marked by that method, key unit, and process for producing key unit
US20060258245A1 (en) * 2005-05-10 2006-11-16 Oliver Salzmann Multilayered material part and formed part produced therefrom
BRPI1011928B1 (pt) * 2009-07-01 2020-01-28 Leonhard Kurz Stiftung & Co Kg corpo de camadas múltiplas, seu processo de produção, e processo para produzir um artigo decorado
US10201954B2 (en) * 2013-05-16 2019-02-12 Tagleef Industries PTY Ltd. Metallized multi-layer structure film for in-mold labels, printed in-mold labels formed from such film and methods of applying the printed labels to an article during the molding of the article
US20160083540A1 (en) * 2013-05-22 2016-03-24 Lubrizol Advanced Materials, Inc. Articles made from thermoplastic polyurethanes with crystalline chain ends
US10357909B2 (en) * 2014-05-30 2019-07-23 Absolute Exhibits, Inc. Thermoset in-mold finishing film
EP3488993B1 (fr) * 2016-07-20 2021-06-16 Denka Company Limited Feuille de résine thermoplastique ayant un corps en forme de cheveux et produit moulé à partir de celle-ci

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ALMOHANDES A.A., ALMOHANDES, ABDEL KADER, ELEICHE: "Experimental investigation of the ballistic resistance of steel-fiberglass reinforced polyester laminated plates", COMPOSITES PART B, ELSEVIER, AMSTERDAM, NL, vol. 27, no. 5, 1 January 1996 (1996-01-01), AMSTERDAM, NL, pages 447 - 458, XP055946215, ISSN: 1359-8368, DOI: 10.1016/1359-8368(96)00011-X *
DE FREITAS M., REIS L: "Failure mechanisms on composite specimens subjected compression after impact", COMPOSITE STRUCTURES, vol. 42, 1 January 1998 (1998-01-01), pages 365 - 373, XP093175512 *
VECCHIONE, PAOLO ET AL.: "Hot-compacted self reinforced polyamide 6 composite laminates", COMPOSITES PART B: ENGINEERING, vol. 110, pages 39 - 45, XP029923979, DOI: 10.1016/j.compositesb. 2016.11.00 7 *

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