Flocked transfer and article of manufacture including the flocked transfer
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B29C-065/02
B32B-037/05
B32B-037/16
B32B-037/14
B32B-038/00
B44C-001/165
B44C-001/17
출원번호
US-0455541
(2003-06-04)
등록번호
US-7402222
(2008-07-22)
발명자
/ 주소
Abrams,Louis Brown
출원인 / 주소
High Voltage Graphics, Inc.
대리인 / 주소
Sheridan Ross P.C.
인용정보
피인용 횟수 :
10인용 특허 :
141
초록▼
A flocked transfer is produced by applying a release agent to a release sheet and then applying the flocking to the release agent. Unlike the traditional method, a binder and hot melt film is not applied to the back of the flock. The transfer (which is essentially a flocked release sheet) is then a
A flocked transfer is produced by applying a release agent to a release sheet and then applying the flocking to the release agent. Unlike the traditional method, a binder and hot melt film is not applied to the back of the flock. The transfer (which is essentially a flocked release sheet) is then applied to a substrate (i.e., an item of clothing, a rubber pad, etc.) by positioning a sheet of thermosetting hot melt film on the substrate; placing the transfer on the hot melt film with the flock in contact with the hot melt film; and applying heat and pressure. The heat melts the thermosetting hot melt film to bind the flock to the substrate and binds the flocking together. This method reduces the costs involved in producing flocked articles, especially for articles produced on a continuous basis.
대표청구항▼
The invention claimed is: 1. A method of producing an article of manufacture having a flocked surface; the method comprising: (a) supplying a flocked release sheet comprising a release sheet, a release adhesive adhered to the release sheet, and a plurality of flock fibers, with the flock fibers bei
The invention claimed is: 1. A method of producing an article of manufacture having a flocked surface; the method comprising: (a) supplying a flocked release sheet comprising a release sheet, a release adhesive adhered to the release sheet, and a plurality of flock fibers, with the flock fibers being adhered to the release sheet by the release adhesive; (b) supplying a pre-formed, solid and self-supporting thermosetting adhesive sheet; (c) thereafter contacting the flocked release sheet with the pre-formed, solid, and self-supporting thermosetting adhesive sheet, with the flock fibers being substantially perpendicular to an adjacent surface of the thermosetting sheet and the flock being positioned between the release sheet and release adhesive on the one hand and the thermosetting adhesive sheet on the other; (d) while the flocked release sheet is in contact with the thermosetting adhesive sheet, heating and applying pressure to the pre-formed, solid, and self-supporting thermosetting adhesive sheet to tackify the thermosetting adhesive and embed ends of the flock fibers in the adhesive, thereby adhering the thermosetting adhesive to the flock of the flocked release sheet. 2. The method of claim 1 wherein the step of heating the thermosetting adhesive sheet comprises heating the thermosetting adhesive sheet to a temperature at which the thermosetting adhesive sheet becomes tacky, but below a temperature at which the thermosetting adhesive sheet begins to cure and cross-link and wherein the thermosetting adhesive sheet is later adhered to a substrate. 3. The method of claim 1 wherein the step of heating the thermosetting adhesive sheet comprises heating the thermosetting adhesive sheet to a temperature at which the thermosetting adhesive sheet cures and cross-links and wherein the thermosetting adhesive sheet is in contact with a substrate during heating and is adhered permanently to the substrate after heating. 4. The method of claim 3 wherein the thermosetting adhesive sheet is heated to about 300�� F. and, while heated, subjected to a pressure from about 40 to about 50 psi. 5. The method of claim 1 wherein the thermosetting adhesive sheet is at least one of a thermosetting polyurethane adhesive film or a thermosetting polyester adhesive film having a substantially uniform thickness. 6. The method of claim 1, wherein at least most of the flock fibers are in direct contact with the thermosetting adhesive sheet. 7. The method of claim 1, wherein the interface between the flock and thermosetting adhesive sheet is at least substantially free of a binder adhesive. 8. The method of claim 7, wherein the thermosetting adhesive sheet is preformed before the adhering step (b). 9. The method of claim 1, wherein the release sheet and thermosetting adhesive sheet are on opposing surfaces of the flock. 10. The method of claim 1, wherein, after step (c), an embedded length of a flock fiber is positioned in the thermosetting adhesive sheet and wherein, for at least most of the flock fibers, the embedded flock length used for the thermosetting adhesive sheet is less than the embedded flock length used for a screen-printed latex. 11. The method of claim 1, wherein the flock is thermoplastically adhered to the thermosetting adhesive sheet before the thermosetting adhesive sheet is contacted with and adhered in a thermoset state to the substrate. 12. The method of claim 1, further comprising adhering the thermosetting adhesive sheet to a substrate to adhere the flock to the substrate. 13. The method of claim 12 wherein the step of heating the thermosetting adhesive sheet and the step of adhering the thermosetting adhesive sheet to the substrate are performed substantially simultaneously in a single operation. 14. The method of claim 12, wherein, after the heating step, an embedded length of a flock fiber is positioned in the thermosetting adhesive sheet and wherein, for most of the flock fibers, the embedded flock length used for the thermosetting adhesive sheet is less than the embedded flock length used for a screen-printed latex. 15. The method of claim 1, wherein the flock comprises a plurality of fibers substantially perpendicular to the release sheet, and wherein at least substantially all of the flock fibers that are substantially perpendicular to the release sheet contact the thermosetting adhesive sheet. 16. The method of claim 1, wherein, in step (c), the flock fibers are embedded in the thermosetting adhesive sheet to a desired and substantially uniform depth. 17. A method for continuously producing an article of manufacture having a flocked surface; the method comprising: (a) providing a flocked release sheet comprising a release sheet, a release agent on the release sheet and a plurality of flock fibers attached to the release agent, wherein the flock fibers are formed in a desired pattern on the release sheet and are substantially perpendicular to the release sheet; (b) providing a pre-formed, solid, and self-supporting thermosetting adhesive sheet; (c) providing a substrate; (d) thereafter contacting the thermosetting adhesive sheet, flocked release sheet, and substrate, with the thermosetting adhesive sheet being positioned between the release sheet and the substrate and the flock in contact with the thermosetting adhesive sheet, to produce a pre-assembly, wherein at least substantially all of the flock fibers that are substantially perpendicular to the release sheet contact the thermosetting adhesive sheet; and (e) heating while applying pressure to the pre-assembly to soften and thermoset the thermosetting adhesive and thereby adhere the free surface of the flock and the substrate to the thermosetting adhesive sheet to form an article of manufacture, wherein the at least substantially all of the flock fibers are embedded in the thermosetting adhesive sheet. 18. The method of claim 17 wherein, the thermosetting adhesive sheet has a substantially uniform thickness. 19. The method of claim 17 wherein, the thermosetting adhesive sheet is a thermosetting polyester or a thermosetting polyurethane. 20. The method of claim 17, wherein the pressure applied to the pre-assembly ranges from about 40 to about 50 psi. 21. The method of claim 17, wherein at least most of the flock fibers are in direct contact with the thermosetting adhesive sheet. 22. The method of claim 17, wherein there is no binder adhesive in contact with the thermosetting adhesive sheet. 23. The method of claim 17, wherein the release sheet and thermosetting adhesive sheet are on opposing surfaces of the flock. 24. The method of claim 17, further comprising applying heat to the pre-assembly to adhere the flock fibers to the substrate; and removing the release sheet from the flock fibers to produce a flocked substrate. 25. A method of producing an article of manufacture having a flocked surface, comprising: supplying a flocked surface comprising flock fibers; supplying a pre-formed solid, and self-supporting thermosetting adhesive sheet having a substantially uniform thickness and substantially flat upper and lower surfaces; thereafter contacting the thermosetting adhesive sheet with the flock fibers; and while the flocked surface is in contact with the thermosetting adhesive sheet, heating and applying pressure to the flocked surface to soften the thermosetting adhesive and embed ends of the flock fibers in the thermosetting adhesive sheet, thereby binding the thermosetting adhesive sheet to the flock fibers; wherein the step of heating the thermosetting adhesive sheet comprises heating the thermosetting adhesive sheet to a temperature at which the thermosetting adhesive sheet becomes tacky, but below the temperature at which the thermosetting adhesive sheet begins to cure and cross-link, and wherein the thermosetting adhesive sheet is later adhered to a substrate. 26. The method of claim 25 wherein the flocked surface comprises a release sheet and release agent in contact with a first side of the flocked surface, wherein the pressure applied to the flocked surface is from about 40 to about 50 psi, and wherein the thermosetting adhesive sheet is in contact with an opposing second side of the flocked surface. 27. The method of claim 25 wherein the thermosetting adhesive sheet is a thermosetting polyester and wherein there is no binder adhesive positioned between the flock fibers and thermosetting adhesive sheet. 28. The method of claim 25, wherein the thermosetting adhesive sheet is cut to a shape before the thereafter contacting step. 29. The method of claim 25, wherein the flock fibers are adhered to a first surface of the thermosetting adhesive sheet, wherein the thermosetting adhesive sheet has a second surface opposed to the first surface, and wherein there is no hot melt adhesive adjacent to the second surface. 30. A method of producing a flocked article, comprising: (a) forming a flocked release sheet, the flocked release sheet comprising a release sheet, a release adhesive and flock adhered to the release sheet by the release adhesive; (b) contacting a pre-formed, solid, and self-supporting thermosetting adhesive sheet to the exposed ends of the flock of the flocked release sheet, wherein the thermosetting adhesive sheet is formed before step (b); and (c) while the thermosetting adhesive sheet is in contact with the flock, heating and applying pressure to the flocked release sheet and thermosetting adhesive sheet to soften the thermosetting adhesive and embed ends of the flock in the thermosetting adhesive, thermoplastically adhere the flock to the thermosetting adhesive sheet, and provide a transfer comprising the thermosetting adhesive sheet and the flocked release sheet, wherein embedded fibers of the flock are substantially perpendicular to an adjacent surface of the thermosetting adhesive sheet. 31. The method of claim 30, wherein step (c) is performed substantially in the absence of a binder adhesive positioned between the thermosetting adhesive sheet and the flock, and wherein the thermosetting adhesive sheet has a substantially uniform thickness before and after steps (b) and (c). 32. The method of claim 31, wherein the thermosetting adhesive sheet is free of an acrylic adhesive. 33. The method of claim 31, wherein the flocked substrate is free of a hot melt adhesive. 34. The method of claim 31, wherein the thermosetting adhesive sheet is cross-linked during the heating step (c) and wherein the pressure applied to the flocked release sheet and thermosetting adhesive sheet ranges from about 40 to about 50 psi. 35. The method of claim 31, wherein the thermosetting adhesive sheet is not substantially cross-linked before the heating step (c). 36. The method of claim 31, further comprising, after the heating step (c): applying the thermosetting adhesive sheet to a substrate; and heating the thermosetting adhesive sheet until the thermosetting adhesive is fully activated. 37. The method of claim 30, further comprising: (d) thereafter contacting the thermosetting adhesive sheet with a substrate; and (e) while the thermosetting adhesive sheet is contacted with the substrate, heating and applying pressure to the transfer to adhere the transfer to the substrate, wherein, in the adhering step (b), the interface between the thermosetting adhesive sheet and the substrate is at least substantially free of a binder adhesive and wherein the thermosetting adhesive sheet is in the thermoset state after step (e). 38. The method of claim 37, wherein, after step (c), an embedded length of a flock fiber is positioned in the thermosetting adhesive sheet and wherein, for at least most of the flock fibers, the flock length embedded in the thermosetting adhesive sheet is less than the flock length embedded in a screen-printed latex. 39. The method of claim 30, further comprising: before step (b), precutting the thermosetting adhesive sheet to a desired final shape of the transfer. 40. The method of claim 30, wherein, in the heating step (c), the thermosetting adhesive sheet is heated to a temperature to soften the thermosetting adhesive. 41. The method of claim 30 wherein the step (b) of contacting the thermosetting adhesive sheet to the flocked release sheet and the step (c) of heating and applying pressure to the thermosetting adhesive sheet and the flocked release sheet are performed substantially simultaneously. 42. The method of claim 30, wherein a first surface of the thermosetting adhesive sheet in contact with the flock and a second opposing surface are each at least substantially free of a binder adhesive. 43. The method of claim 30, wherein the flock comprises a plurality of fibers substantially perpendicular to the release sheet, and wherein at least substantially all of the flock fibers that are substantially perpendicular to the release sheet contact the thermosetting adhesive sheet. 44. A method of producing a flocked transfer assembly, comprising: providing a release agent on the release sheet; flocking a plurality of flock fibers on the release agent in a desired pattern to define a free surface of the flock, wherein the release agent holds the flock to the release sheet, and wherein the flock fibers are substantially perpendicular to an adjacent surface of the release sheet; providing a pre-formed, solid and self-supporting thermosetting adhesive sheet; contacting the free surface of the flock with the thermosetting adhesive sheet such that at least most of a free surface of the flock is in direct physical contact with the thermosetting adhesive sheet; and while the flock fibers are in contact with the thermosetting adhesive sheet, heating and applying pressure to the release sheet to force the ends of the flock fibers into the heated and softened thermosetting adhesive sheet, thereby adhering the thermosetting adhesive sheet to the free surface of the flock to produce a flocked transfer assembly, wherein the flock fibers are substantially perpendicular to an adjacent surface of the thermosetting adhesive sheet. 45. The method of claim 44, further comprising adhering the flocked transfer assembly to a substrate. 46. The method of claim 45, wherein the flock is thermoplastically adhered to the thermosetting adhesive sheet before the thermosetting adhesive sheet is contacted with and adhered in a thermoset state to the substrate. 47. The method of claim 44, wherein the thermosetting adhesive sheet is continuous and wherein, in the adhering step, pressure is applied to the release sheet while the thermosetting adhesive sheet is heated, the applied pressure ranging from about 40 to about 50 psi. 48. The method of claim 44, wherein there is no binder adhesive positioned between the flock fibers and thermosetting adhesive sheet. 49. The method of claim 44, wherein the thermosetting adhesive sheet is cut to a shape before the thereafter contacting step. 50. The method of claim 44, wherein the flock is adhered to a first surface of the thermosetting adhesive sheet, wherein the thermosetting adhesive sheet has a second surface opposed to the first surface, and wherein there is no hot melt adhesive adjacent to the second surface.
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