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 PDFInfo
- 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
Links
- 238000000859 sublimation Methods 0.000 title claims abstract description 18
- 230000008022 sublimation Effects 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000007639 printing Methods 0.000 title claims abstract description 15
- 239000000758 substrate Substances 0.000 title claims abstract description 15
- 238000000465 moulding Methods 0.000 title claims description 10
- 229920006267 polyester film Polymers 0.000 claims description 13
- 229920000642 polymer Polymers 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000005304 joining Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 9
- 239000000047 product Substances 0.000 description 7
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical group CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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.
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
ID=91083404
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)
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 |
-
2022
- 2022-11-18 WO PCT/BR2022/050454 patent/WO2024103135A1/fr unknown
Patent Citations (12)
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)
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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