IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0288545
(2011-11-03)
|
등록번호 |
US-8435600
(2013-05-07)
|
발명자
/ 주소 |
- Burmester, Thomas
- Kufner, Hubert
|
출원인 / 주소 |
|
대리인 / 주소 |
Wood, Herron & Evans, L.L.P.
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인용정보 |
피인용 횟수 :
0 인용 특허 :
144 |
초록
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A method of dispensing multiple adhesive filaments onto a substrate in a random pattern using asymmetrical pressurized process air. The method generally comprises moving the substrate along a machine direction and discharging multiple adhesive filaments from a plurality of liquid outlets. Pressurize
A method of dispensing multiple adhesive filaments onto a substrate in a random pattern using asymmetrical pressurized process air. The method generally comprises moving the substrate along a machine direction and discharging multiple adhesive filaments from a plurality of liquid outlets. Pressurized process air is directed toward each one of the multiple adhesive filaments respectively along a first angle relative to a plane including an associated liquid outlet. Pressurized process air is also directed toward each one of the multiple adhesive filaments respectively along a second angle relative to the plane including the associated liquid outlet and on an opposite side of the associated liquid outlet than the pressurized process air directed along the first angle. The second angle is different than the first angle so that the pressurized process air is directed asymmetrically toward the multiple adhesive filaments.
대표청구항
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1. A method of dispensing a plurality of adhesive filaments onto a substrate in a random pattern, comprising: moving the substrate along a machine direction;discharging the plurality of adhesive filaments from a plurality of liquid outlets, each liquid outlet being located in a liquid discharge plan
1. A method of dispensing a plurality of adhesive filaments onto a substrate in a random pattern, comprising: moving the substrate along a machine direction;discharging the plurality of adhesive filaments from a plurality of liquid outlets, each liquid outlet being located in a liquid discharge plane;directing at least one of a plurality of first pressurized process air streams toward a respective one of the plurality of adhesive filaments, each of the first pressurized process air streams flowing along a first plane oriented along a first angle relative to the liquid discharge plane;directing at least one of a plurality of second pressurized process air streams toward a respective one of the plurality of adhesive filaments, each of the second pressurized process air streams flowing along a second plane oriented along a second angle relative to the liquid discharge plane, wherein only the plurality of first pressurized process air streams is directed along one side of the liquid discharge plane and only the plurality of second pressurized process air streams is directed along an opposite side of the liquid discharge plane, and the second angle being different than the first angle so that the first and second pressurized process air streams are directed asymmetrically toward the plurality of adhesive filaments; anddepositing the plurality of adhesive filaments on the substrate in a random pattern. 2. The method of claim 1, further comprising: forming zones of air turbulence below the liquid outlets with the plurality of first and second pressurized process air streams directed toward the plurality of adhesive filaments; anddirecting the plurality of adhesive filaments through the zones of turbulence to move the plurality of adhesive filaments in random directions. 3. The method of claim 1, wherein the plurality of adhesive filaments discharging from the plurality of liquid outlets are discharged from liquid slots contained in an adhesive shim plate, the plurality of first pressurized process air streams directed toward the plurality of adhesive filaments along the first angle are directed from air slots contained in a first air shim plate, and the plurality of second pressurized process air streams directed toward the plurality of adhesive filaments along the second angle are directed from air slots contained in a second air shim plate. 4. The method of claim 3, wherein each of the liquid slots in the adhesive shim plate is arranged generally between a pair of air slots in the first air shim plate and a pair of air slots in the second air shim plate thereby associating four air slots with each liquid slot. 5. The method of claim 4, wherein forming zones of air turbulence comprises: forming zones of turbulence below each liquid slot with pressurized process air streams directed by the associated group of four air slots. 6. The method of claim 1, wherein directing the at least one first pressurized process air stream along the first angle further comprises directing one stream of air, and directing the at least one second pressurized process air stream along the second angle further comprises directing two streams of air, thereby directing a total of three streams of air toward each of the adhesive filaments. 7. The method of claim 1, wherein directing the at least one first pressurized process air stream along the first angle further comprises directing two streams of air, and directing the at least one second pressurized process air stream along the second angle further comprises directing two streams of air, thereby directing a total of four streams of air toward each of the adhesive filaments. 8. The method of claim 1, wherein directing the at least one first pressurized process air stream along the first angle further comprises directing one stream of air, and directing the at least one second pressurized process air stream along the second angle further comprises directing one stream of air, thereby directing a total of two streams of air toward each of the adhesive filaments. 9. The method of claim 1, wherein the first angle is about 0°. 10. The method of claim 9, wherein the second angle is from about 40° to about 90°. 11. The method of claim 1, wherein the second angle is about 70°. 12. A method of dispensing a plurality of adhesive filaments onto a substrate in a random pattern, comprising: moving the substrate along a machine direction;discharging the plurality of adhesive filaments from a plurality of liquid outlets at terminal ends of a plurality of liquid passages, the plurality of liquid passages and liquid outlets each being located in a liquid discharge plane;directing a plurality of first pressurized process air streams through a first plurality of air passages, each of the first plurality of air passages being located in a first plane angled from the liquid discharge plane at a first angle, at least one of the first plurality of air passages being associated with one of the liquid outlets, wherein the plurality of first pressurized process air streams are directed by each of the air passages in the first plurality of air passages along the first angle relative to the liquid discharge plane; anddirecting a plurality of second pressurized process air streams through a second plurality of air passages, each of the second plurality of air passages being located in a second plane angled from the liquid discharge plane at a second angle, at least one of the second plurality of air passages being associated with one of the liquid outlets, wherein the plurality of second pressurized process air streams are directed by each of the air passages in the second plurality of air passages along the second angle relative to the liquid discharge plane, the first plurality of air passages and the second plurality of air passages being on opposite sides of one of the liquid outlets, the first angle being different than the second angle such that the first and second pressurized process air streams are asymmetrically directed from the first and second pluralities of air passages toward the respective adhesive filaments to produce the random pattern. 13. The method of claim 12, wherein each of the liquid outlets is arranged generally between one of the first plurality of air passages and a pair of the second plurality of air passages so that three air passages direct pressurized process air streams toward each of the adhesive filaments. 14. The method of claim 12, wherein each of the liquid outlets is arranged generally between a pair of the first plurality of air passages and a pair of the second plurality of air passages so that four air passages direct pressurized process air streams toward each of the adhesive filaments. 15. The method of claim 12, wherein each of the liquid outlets is arranged generally between one the first plurality of air passages and one of the second plurality of air passages so that two air passages direct pressurized process air streams toward each of the adhesive filaments. 16. The method of claim 12, wherein the first and second pluralities of air passages and the liquid outlets are aligned in a series. 17. The method of claim 12, wherein the first plurality of air passages, the second plurality of air passages, and the plurality of liquid outlets are arranged in separate rows.
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