Methods of manufacturing paint roller covers from a tubular fabric sleeve
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B29C-065/00
B32B-037/00
B32B-038/04
C08J-005/00
B05C-011/00
B25F-005/00
출원번호
US-0257039
(2008-10-23)
등록번호
US-8182645
(2012-05-22)
발명자
/ 주소
Sinykin, Daniel L.
출원인 / 주소
Seamless Technologies, LLC
대리인 / 주소
Reinhart Boerner Van Deuren s.c.
인용정보
피인용 횟수 :
0인용 특허 :
36
초록▼
A method of manufacturing paint roller covers is disclosed in which the paint roller covers are manufactured from a seamless, tubular fabric sleeve having a backing and a pile made at least in part from a low melt fiber or yarn. The seamless, tubular fabric sleeve is placed onto a cylindrical member
A method of manufacturing paint roller covers is disclosed in which the paint roller covers are manufactured from a seamless, tubular fabric sleeve having a backing and a pile made at least in part from a low melt fiber or yarn. The seamless, tubular fabric sleeve is placed onto a cylindrical member, and heat is applied to cause the low melt fiber or yarn in the backing and looped ends of the pile be activated to cause the backing of the seamless, tubular fabric sleeve to remain in a cylindrical configuration. The activated tubular knitted pile fabric may be finished into paint roller covers by combing and shearing the pile fabric to a desired length, beveling the edges of the paint roller covers, and vacuuming stray fibers from the paint roller covers.
대표청구항▼
1. A method of manufacturing a paint roller cover, comprising: providing a tubular knitted pile fabric sleeve having a first end and a second end, said tubular knitted pile fabric sleeve comprising:a base fabric having a tubular configuration defining an outside and an inside, said base fabric being
1. A method of manufacturing a paint roller cover, comprising: providing a tubular knitted pile fabric sleeve having a first end and a second end, said tubular knitted pile fabric sleeve comprising:a base fabric having a tubular configuration defining an outside and an inside, said base fabric being knitted at least in part from a base strand having a first material and a second material, wherein said first material has a lower melting point than said second material; andpile strands knitted into said base fabric and extending outwardly from said base fabric to form the pile of said tubular knitted pile fabric sleeve, said pile strands comprising at least in part a third material and a fourth material, wherein said third material has a lower melting point than said fourth material;placing a first length of said tubular knitted pile fabric sleeve onto a cylindrical member having a cylindrical outer surface with said inside of said base fabric in contact with said cylindrical outer surface of said cylindrical member; andheating said base fabric to cause at least a portion of said first and said third materials to melt and fuse said base fabric together to thereby create a cylindrical integral core member;removing the sleeve from the cylindrical member upon cooling; wherein when the sleeve is cooled, it is sufficiently rigid to preserve its cylindrical configuration. 2. A method as defined in claim 1, wherein said tubular knitted pile fabric sleeve comprises: a sliver knit tubular knitted pile fabric sleeve wherein said pile strands comprise tufts of sliver fibers. 3. A method as defined in claim 1, wherein said tubular knitted pile fabric sleeve comprises: a knit tubular knitted cut pile fabric sleeve wherein said pile strands comprise cut pile segments. 4. A method as defined in claim 1, wherein said tubular knitted pile fabric sleeve comprises: a tubular knitted fabric sleeve wherein said pile strands comprise tufts of sliver fibers and cut pile segments. 5. A method as defined in claim 1, wherein said first is different from the third material. 6. A method as defined in claim 1, wherein said second material is different from the fourth material. 7. A method as defined in claim 6, wherein said base strand comprises a bicomponent fiber arranged and configured with a sheath made of said second material that surrounds a core made of said first material. 8. A method as defined in claim 6, wherein said base strand comprises a bicomponent fiber arranged and configured with segments of said first and second material respectively located in a side-by-side arrangement. 9. A method as defined in claim 6, wherein said base strand comprises a bicomponent fiber arranged and configured with a plurality of strands made of said first material that are surrounded by a sheath made of said second material. 10. A method as defined in claim 6, wherein said first material is selected from the group of materials consisting of polyester and polypropylene. 11. A method as defined in claim 6, wherein said second material is selected from the group of materials consisting of polyethylene terephthalate (PET), polyethylene, and copolyester. 12. A method as defined in claim 1, wherein said base strand and said pile strands each comprise at least one bicomponent yarn comprising: at least one fiber made of a first material having a first melting point; andat least one fiber made of a second material having a second melting point that is lower than said first melting point. 13. A method as defined in claim 1, wherein said base strand comprises a yarn having a linear mass density of between approximately 150 denier and approximately 1500 denier. 14. A method as defined in claim 1, wherein said tubular knitted pile fabric sleeve has an inner diameter that is slightly larger than, approximately the same size as, or smaller than the outer diameter of said cylindrical member. 15. A method as defined in claim 1, wherein said tubular knitted pile fabric sleeve and said cylindrical member are both substantially longer than the length of a paint roller cover. 16. A method as defined in claim 15, additionally comprising: cutting said integral core member into a plurality of unfinished paint roller covers each covered with knitted pile fabric having pile extending outwardly therefrom and each having edges located at opposite ends thereof. 17. A method as defined in claim 1, wherein said tubular knitted pile fabric sleeve is of a length that is sufficiently long such that following said heating step said integral core member will be substantially the length needed to produce a paint roller cover of the desired length. 18. A method as defined in claim 1, wherein said cylindrical member comprises: a hollow cylindrical aluminum heating tube having a non-stick outer surface. 19. A method as defined in claim 18, wherein said aluminum heating tube has an outer diameter that is substantially identical to a desired inner diameter of a finished paint roller cover. 20. A method as defined in claim 18, wherein said heating step comprises: placing the aluminum heating tube with the tubular knitted pile fabric sleeve located thereupon onto a preheated mandrel heating assembly; andafter a predetermined period of time, removing said aluminum heating tube from said mandrel heating assembly and allowing said integral core member to cool. 21. A method as defined in claim 20, wherein said mandrel heating assembly is preheated to a temperature that is sufficient to cause said first and said third materials to melt. 22. A method as defined in claim 21, wherein said mandrel heating assembly is preheated to a temperature that is less than 650 degrees Fahrenheit (343 degrees Celsius). 23. A method as defined in claim 22, wherein said mandrel heating assembly is preheated to a temperature that is less than 450 degrees Fahrenheit (121 degrees Celsius). 24. A method as defined in claim 20, wherein said predetermined time is sufficient time for said first and said third materials to melt and fuse said base fabric together. 25. A method as defined in claim 24, wherein said predetermined time is between approximately five seconds and approximately ninety seconds. 26. A method as defined in claim 1, additionally comprising: placing a segment of dry adhesive film onto said cylindrical outer surface of said cylindrical member before said tubular knitted pile fabric sleeve is placed onto said cylindrical member, said tubular knitted pile fabric sleeve thus being located over said segment of dry adhesive film on said cylindrical outer surface of said cylindrical member;wherein said dry adhesive film melts at least in part and fuses with said base fabric and said pile strands. 27. A method as defined in claim 26, wherein said dry adhesive film is between approximately 0.0005 inches (0.0127 millimeters) and 0.01 inches (0.254 millimeters) thick. 28. A method as defined in claim 1, additionally comprising: applying a liquid adhesive layer onto said cylindrical integral core member of said tubular knitted pile fabric sleeve and allowing said adhesive layer to dry. 29. A method as defined in claim 1, wherein said tubular knitted pile fabric sleeve has edges located at said first and second ends thereof, said method additionally comprising: combing said pile of said tubular knitted pile fabric sleeve extending from said integral core member;shearing said pile of said tubular knitted pile fabric sleeve extending from said integral core member to the desired length;beveling said edges of said tubular knitted pile fabric sleeve extending from said integral core member; andvacuuming said pile of said knitted pile fabric extending from said integral core member. 30. A method as defined in claim 1, additionally comprising: cutting said tubular knitted pile fabric sleeve extending from said integral core member into a plurality of unfinished paint roller covers each of a desired length;combing said pile of said knitted pile fabric on said unfinished paint roller covers;shearing said pile of said knitted pile fabric on said unfinished paint roller covers to the desired length;beveling said edges of said unfinished paint roller covers; andvacuuming said pile of said unfinished paint roller covers. 31. A method of manufacturing a paint roller cover, comprising: providing a tubular knitted pile fabric sleeve having a first end and a second end, said tubular knitted pile fabric sleeve comprising:a base fabric having a tubular configuration defining an outside and an inside, said base fabric being knitted at least in part from a bicomponent fiber having a first material and a second material, wherein said first material has a lower melting point than said second material; andpile strands knitted into said base fabric and extending outwardly from said base fabric to form the pile of said tubular knitted pile fabric sleeve, said pile strands comprising at least in part a low melt fiber including a third material having a melting point that is approximately the same as the melting point of the first material of said bicomponent fiber of said base fabric;preheating a mandrel heating assembly to a temperature that is sufficient to cause said first and said third material to melt;placing a heating tube with the tubular knitted pile fabric sleeve located thereupon onto the mandrel heating assembly to heat said base fabric to cause at least a portion of said first and said third materials to melt and fuse said base fabric together to thereby create a cylindrical integral core member; andremoving said heating tube from said mandrel heating assembly and allowing said integral core member to cool, said cylindrical integral core member, when cooled, having sufficiently rigid to preserve its cylindrical configuration. 32. A method as defined in claim 31, wherein said first and third materials are dissimilar materials having approximately the same melting point. 33. A method as defined in claim 31, wherein said first and third materials are the same material. 34. A method of manufacturing a paint roller cover, comprising: providing a tubular knitted pile fabric sleeve comprising:a tubular base fabric that is knitted at least in part from a first bicomponent material; andextending outwardly pile strands knitted into said base fabric, said pile strands including at least in part a second bicomponent material;placing said tubular knitted pile fabric sleeve onto a cylindrical member; andheating said cylindrical member to transfer heat to said base fabric to cause said first and said second bicomponent materials to melt at least in part and fuse together so that, when cooled, said tubular base fabric remains in a cylindrical configuration. 35. A method as defined in claim 34, wherein said first and second bicomponent materials are the same bicomponent material.
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