Method of forming a package
阅读：360发布：2020-11-10
专利汇可以提供Method of forming a package专利检索，专利查询，专利分析的服务。并且This relates to a package which is primarily intended to have a first product incorporated therein in the forming of the container portion of the package, with the container including a valved passage through which a second product may be added to the package. The package is formed with two walls and is of a construction wherein it may be formed on a continuous basis utilizing major web material, which defines the two walls of the packages, and minor web portions. The package forming operation may be either a horizontal operation or a vertical operation. The minor web portions are first sealed to one of the walls to define a plurality of adjacent valved passages, after which the two wall portions are superimposed with respect to valve passages and said minor web portions disposed therebetween, followed by formation of transverse seals to define packages each having a valved passage at one end thereof.，下面是Method of forming a package专利的具体信息内容。
1. A method of forming a package with a valved passage having two inner surfaces, said package having two walls joined by four transverse closures adjacent four ends thereof respectively and an accessible package entrance to said valved passage adjacent one end, said method comprising the steps of providing major web material successively supplying two wall portions to form said two outer walls respectively, providing a minor web to form in part said valved passage, repeatedly sealing successive portions of said minor web to said successive portions of only one of said two wall portions to define therebetween said two inner surfaces of said valved passage with said valved passage being produced in plurality, superimposing said two wall portions with respective valved passages and said minor web portions disposed therebetween to relatively position said two outer walls, advancing said superimposed wall portions past multiple sealing stations, sealing said superimposed wall portions together with two transverse package closure seals on opposite sides of each of said valved passages and generally perpendicular to the direction of said advancement, placing a product between said outer walls and sealing the other of said two wall portions to the minor web portion.
2. The method of claim 1 wherein the product is placed within said package through one of said ends prior to placing the respective one of said four closures.
3. The method of claim 1 wherein said major web material comprises two separate major webs advancing simultaneously with each of said separate webs providing a different one of said two wall portions, sealing said two separate webs to one another along adjacent edges thereof to form one of said four transverse closures, and the other three transverse closures are also seals.
4. The method of claim 1 wherein said major web material comprises a single major web folded longitudinally with each of said two wall portions disposed on separate sides of said fold and opposite to each other, and one of said four transverse closures is said fold.
5. The method of claim 4 wherein a tear string is positioned along said fold for facilitating the opening of said package.
6. The method of claim 4 wherein said transverse package closure seals are formed prior to the sealing of said other package wall to the minor web portion, and the product is placed within said package through the space between said other package wall and the minor web portion prior to the forming of said seal therebetween.
7. The method of claim 6 wherein in the formation of said package said major web moves in a generally horizontal direction, and during the filling of said package said package walls are generally upstanding with said valved passage being at the upper end of said package.
8. The method of claim 3 wherein in the formation of said package said major web material moves in a generally horizontal direction, and during the filling of said package said package walls are generally upstanding.
9. THe method of claim 1 wherein during the sealing of the other of said two wall portions to the minor web portion the valved passage is prevented from receiving a permanent closure by ruptureable means to facilitate accessibility thereto.
10. The method of claim 4 wherein said minor web portions are sealed to said single major web adjacent a median line thereof.
11. The method of claim 10 wherein in the formation of said package said single major web moves in a generally horizontal direction, and during the filling of said package said package walls are generally upstanding with said valved passage being at the lower end of said package and the upper end of said package being open for the reception of the product.
12. The method of claim 4 wherein said sealing of the other wall portion to the minor web portion is prior to the placement of said two transverse seals whereby said single major web is formed into a tube, and the product is placed in each package after the forming of one of said transverse seals and prior to the forming of the other of of said transverse seals.
13. The method of claim 4 wherein prior to placing said two transverse package closure seals said single major web is passed around an upstanding former and shaped into tubular form thereabout and sealed into a tube.
14. A method of forming a package with a valved passage having two inner surfaces, said package having two outer walls joined by four transverse closures adjacent four ends thereof respectively and having an accessible package entrance to said valved passage also adjacent one of said ends, said method comprising the steps of providing a major web material successively supplying two wall portions to form said two outer walls respectively, providing a minor web to form in part said valved passage, repeatedly sealing successive portions of said minor web to said successive portions of only one of said two wall portions to define therebetween said two inner surfaces of said valved passage with said valved passage being produced in plurality, superimposing said two wall portions with respective valved passages and said minor web portions disposed therebtween to relatively position said two outer walls, advancing said superimposed wall portions past multiple sealing stations, sealing said superimposed wall portions together with two transverse package closure seals on opposite sides of each of said valved passages and generally perpendicular to the direction of said advancement, placing a transverse closure seal adjacent one of said package ends to join the other of said two wall portions to the minor web portion, and placing a product within said package through one of said ends, and thereafter forming the respective one of said transverse closures.
15. The method of claim 14 wherein said major web material comprises two separate major webs advancing simultaneously with each of said separate webs providing a different one of said two wall portions, sealing said two separate webs to one another along adjacent edges thereof to form one of said four transverse closures, and the other three transverse closures are also seals.
16. The method of claim 1 wherein said major web material comprises a single major web folded longitudinally with each of said two wall portions disposed on separate sides of said fold and opposite to each other, and one of said four transverse closures is said fold.
17. The method of claim 16 wherein said transverse package closure seals are formed prior to the sealing of said other package wall to the minor web portion, and the product is placed within said package through the space between said other package wall and the minor web portion prior to the forming of said seal therebetween.
18. The method of claim 17 wherein the formation of said package said major web moves in a generally horizontal direction, and during the filling of said package said package walls are generally upstanding with said valved passage being at the upper end of said package.
19. ThE method of claim 15 wherein in the formation of said package said major web material moves in a generally horizontal direction, and during the filling of said package said package walls are generally upstanding.
20. The method of claim 14 wherein during the sealing of the other of said two wall portions to the minor web portion the valved passage is prevented from receiving a permanent closure by rupturable means to facilitate accessibility thereto.
21. The method of claim 16 wherein said minor web portions are sealed to said single major web adjacent a median line thereof.
22. The method of claim 21 wherein in the formation of said package said single major web moves in a generaly horizontal direction, and during the filling of said package said package walls are generally upstanding with said valved passage being at the lower end of said package and the upper end of said package being open for the reception of the product.
23. The method of claim 16 wherein said sealing of the other wall portion to the minor web portion is prior to the placement of said two transverse seals whereby said single major web is formed into a tube, and the product is placed in each package after the forming of one of said transverse seals and prior to the forming of the other of said transverse seals.
24. The method of claim 16 wherein prior to placing said two transverse package closure seals said single major web is passed around an upstanding former and shaped into tubular form thereabout and sealed into a tube.
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