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
C08J-005/00
A01B-029/00
B21B-001/40
E01C-019/23
B05C-011/00
B25F-005/00
B05C-001/00
B05C-017/02
B24D-013/14
B44D-005/00
B29C-063/18
B29C-063/48
D04B-001/02
B29C-063/10
B29L-031/32
출원번호
US-0309020
(2011-12-01)
등록번호
US-8882957
(2014-11-11)
발명자
/ 주소
Sinykin, Daniel L.
Smith, Randy
Smith, Scot
출원인 / 주소
Seamless Technologies, LLC
대리인 / 주소
Reinhart Boerner Van Deuren s.c.
인용정보
피인용 횟수 :
0인용 특허 :
63
초록▼
A method of manufacturing paint roller covers is disclosed in which the paint roller covers are manufactured from a seamless segment of tubular paint roller cover fabric that is placed onto a cylindrical forming tube having a segment of bonding material temporarily secured on its outer surface under
A method of manufacturing paint roller covers is disclosed in which the paint roller covers are manufactured from a seamless segment of tubular paint roller cover fabric that is placed onto a cylindrical forming tube having a segment of bonding material temporarily secured on its outer surface under the segment of tubular paint roller cover fabric. The cylindrical forming tube is placed on a heated mandrel to apply heat thereto to cause the bonding material to bond to the interior of the segment of tubular paint roller cover fabric. The cylindrical forming tube is removed from the mandrel and cooled, and the segment of tubular paint roller cover fabric becomes secured to the bonding material to produce a semi-rigid paint roller cover segment. The semi-rigid paint roller cover segment may be finished into paint roller covers.
대표청구항▼
1. A method of manufacturing a paint roller cover, comprising: temporarily securing a segment of bonding material onto an outer surface of a hollow cylindrical forming tube having a first outer diameter and an inner surface having a first inner diameter;placing a segment of tubular paint roller fabr
1. A method of manufacturing a paint roller cover, comprising: temporarily securing a segment of bonding material onto an outer surface of a hollow cylindrical forming tube having a first outer diameter and an inner surface having a first inner diameter;placing a segment of tubular paint roller fabric having a first end and a second end onto the outer surface of the cylindrical forming tube over the segment of bonding material thereupon;applying heat to the inner surface of the cylindrical forming tube at a predetermined temperature for a predetermined period of time that are sufficient to cause the bonding material to bond to the interior of the segment of tubular paint roller cover fabric; andcooling the bonding material that is bonded to the segment of tubular paint roller cover fabric for a second period of time that is sufficient to cause the bonding material to become semi-rigid, the segment of tubular paint roller cover fabric being secured to the bonding material to produce a semi-rigid paint roller cover segment. 2. A method as defined in claim 1, wherein the bonding material comprises: a segment of thermally activatable bonding tape wound in helical windings around the cylindrical forming tube. 3. A method as defined in claim 2, wherein the helical windings overlap. 4. A method as defined in claim 2, wherein the thermally activatable bonding tape comprises: a polyurethane film material that is optionally reinforced with a support netting material. 5. A method as defined in claim 1, wherein the cylindrical forming tube comprises: a hollow cylindrical aluminum heating tube having a non-stick outer surface. 6. A method as defined in claim 5, wherein the aluminum heating tube has an outer diameter that is substantially identical to a desired inner diameter of a finished paint roller cover. 7. A method as defined in claim 1, wherein the segment of tubular paint roller cover fabric comprises: a sliver knit tubular knitted pile fabric wherein the pile strands comprise tufts of sliver fibers. 8. A method as defined in claim 1, wherein the segment of tubular paint roller cover fabric comprises: a knit tubular knitted cut pile fabric wherein the pile strands comprise cut pile segments. 9. A method as defined in claim 1, wherein the segment of tubular paint roller cover fabric comprises pile strands knitted into a backing fabric, and wherein the backing fabric comprises at least one bicomponent fiber comprising: a first material having a first melting point; anda second material having a second melting point that is lower than said first melting point. 10. A method as defined in claim 1, wherein the segment of tubular paint roller cover fabric has an inner diameter that is slightly larger than, approximately the same size as, or smaller than the outer diameter of the segment of tubular paint roller cover fabric. 11. A method as defined in claim 1, wherein the segment of tubular paint roller cover fabric and the cylindrical forming tube are both substantially longer than the length of a paint roller cover. 12. A method as defined in claim 1, wherein the placing the segment of tubular paint roller fabric step comprises: placing the segment of tubular paint roller cover fabric onto an outer surface of a hollow cylindrical mounting tube having a second outer diameter and a second inner diameter;inserting the cylindrical forming tube having the bonding material on the exterior surface thereof into the interior of the cylindrical mounting tube such that the cylindrical forming tube having the bonding material on the exterior surface thereof is located substantially inside the cylindrical mounting tube having the segment of tubular paint roller cover fabric thereupon; andlongitudinally displacing the cylindrical mounting tube from the segment of tubular paint roller cover fabric and the cylindrical forming tube having the bonding material on the exterior surface thereof while maintaining the respective longitudinal positions of the segment of tubular paint roller cover fabric with respect to the cylindrical forming tube having the bonding material on the exterior surface thereof, whereupon the segment of tubular paint roller cover fabric is placed upon the outer surface of the cylindrical forming tube over the segment of bonding material thereupon. 13. A method as defined in claim 12, wherein the segment of tubular paint roller cover fabric is sufficiently resilient such that it will expand when it is placed onto the cylindrical mounting tube and that it will subsequently shrink back to a size that is approximately the same as its original size following its installation onto the cylindrical forming tube. 14. A method as defined in claim 1, wherein said tubular core member is placed upon a mandrel that is heated to cause said adhesive bonding material to melt. 15. A method as defined in claim 1, wherein the applying heat step comprises: placing the cylindrical forming tube with the segment of tubular paint roller cover fabric and the segment of bonding material located thereupon onto a preheated cylindrical mandrel heating assembly; andafter a predetermined period of time, removing the cylindrical forming tube from the cylindrical mandrel heating assembly. 16. A method as defined in claim 15, wherein said mandrel heating assembly is preheated to a temperature that is sufficient to cause the bonding material to melt. 17. A method as defined in claim 1, wherein the predetermined temperature is between approximately 300 degrees Fahrenheit (149 degrees Celsius) and approximately 450 degrees Fahrenheit (232 degrees Celsius). 18. A method as defined in claim 1, wherein the predetermined time is between approximately five seconds and approximately one-hundred twenty seconds. 19. A method as defined in claim 1, additionally comprising: subsequent to the initiation of the applying heat step, subjecting the segment of tubular paint roller cover fabric to a rolling process in which the segment of tubular paint roller cover fabric is pressed into the bonding material on the outer surface of the cylindrical forming tube. 20. A method as defined in claim 1, wherein the cooling step comprises: blowing air through the interior of the cylindrical forming tube, the segment of tubular paint roller cover fabric, and/or the exterior of the cylindrical forming tube. 21. A method as defined in claim 1, wherein the segment of tubular paint roller cover fabric has a pile side and a backing side which is opposite said pile side, and wherein the segment of tubular paint roller cover fabric is manufactured and provided with its pile side out and is placed onto the outer surface of the cylindrical forming tube with its pile side out. 22. A method as defined in claim 1, wherein the segment of tubular paint roller cover fabric is substantially longer than the length of a paint roller cover. 23. A method as defined in claim 1, additionally comprising: spraying a release coating onto the outer surface of the cylindrical forming tube before the segment of tubular paint roller fabric is secured to the outer surface of the cylindrical forming tube. 24. A method as defined in claim 1, additionally comprising: placing a segment of paper onto the outer surface of the cylindrical forming tube prior to securing the segment of bonding material onto the outer surface of the cylindrical forming tube, thereby placing the segment of paper intermediate the segment of bonding material and the outer surface of the cylindrical forming tube. 25. A method as defined in claim 1, additionally comprising: cutting the semi-rigid paint roller cover segment into a plurality of unfinished paint roller covers each covered with tubular paint roller cover fabric having pile extending outwardly therefrom and each having edges located at opposite ends thereof. 26. A method as defined in claim 1, additionally comprising: cutting the semi-rigid paint roller cover segment into a plurality of unfinished paint roller covers each of a desired length;combing the pile of the tubular paint roller cover fabric on the unfinished paint roller covers;shearing the pile of the tubular paint roller cover fabric on the unfinished paint roller covers to the desired length;beveling the edges of the unfinished paint roller covers; andvacuuming the pile of the unfinished paint roller covers. 27. A method of manufacturing a paint roller cover, comprising: temporarily securing a segment of bonding material onto an outer surface of a hollow cylindrical forming tube having a first outer diameter and an inner surface having a first inner diameter;placing a segment of tubular paint roller fabric having a first end and a second end onto the outer surface of the cylindrical forming tube over the segment of bonding material thereupon, said segment of tubular paint roller fabric having an inner diameter that is slightly larger than, approximately the same as, or slightly smaller than the first inner diameter of the cylindrical forming tube prior to its placement onto said cylindrical forming tube over the segment of bonding material thereupon;applying heat to the inner surface of the cylindrical forming tube at a predetermined temperature for a predetermined period of time that are sufficient to cause the bonding material to bond to the interior of the segment of tubular paint roller cover fabric;applying pressure to the outer surface of the segment of tubular paint roller cover fabric to press it into the bonding material on the cylindrical forming tube;cooling the segment of bonding material that is bonded to the segment of tubular paint roller cover fabric for a second period of time that is sufficient to cause the bonding material to become semi-rigid, the segment of tubular paint roller cover fabric being secured to the bonding material to produce a pile fabric covered core assembly;removing the pile fabric covered core assembly from the cylindrical forming tube; andfinishing the segment of tubular knitted paint roller cover fabric secured to the bonding material into a finished paint roller cover. 28. A method of manufacturing a paint roller cover, comprising: securing a segment of bonding material onto an outer surface of a hollow cylindrical forming tube;placing a segment of tubular paint roller fabric onto the outer surface of the cylindrical forming tube over the segment of bonding material thereupon;heating the cylindrical forming tube to cause the bonding material to bond to the interior of the tubular paint roller cover fabric;cooling the segment of bonding material that is bonded to the segment of tubular paint roller cover fabric to produce a semi-rigid paint roller cover segment; andremoving the semi-rigid paint roller cover segment from the cylindrical forming tube.
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