Compound dip process for metal cans
AssigneeBall Packaging Europe GmbH
InventorsReinhard Kutschan, Hellmut Bunsch
Life of this patent
Estimating the term…
Abstract
Sealant is applied onto or into a folded-seam closure of a metal can. Instead of introducing sealant into the U-shaped lid flange and drying, the compound or sealant is applied to the base flange. The base of the metal can is dipped into a current of fluid sealant or atl least brought into contact with it at the surface. This substantially imnproves the precision of dosing and the exact amount of applied sealant.
Claims19
Process for an application or introduction of a sealant (10;
- “compound”) between (C,F) an end hook (2a,2b) and a body hook (1a) of a seam (D) between an end (2) and a body (1) of a metal packing, whereby said compound (10;10a,10b) is applied (v,α,y) to said body hook (1a) before applying said end (2) and closing said end hook (2a,2b) and said body hook (1a).
Process for an application or introduction of a sealant (10;
- “compound”) between (C,F) an end hook (2a,2b) and a body hook (1a) of a seam (D) between a metal end (2) and a metal body (1) of a metal packing, whereby said compound (10;10a,10b) is applied (v,α,y) before applying said end (2) and closing said end hook (2a,2b) and said body hook (1a), characterized in that said compound (10) being applied to said body hook (1a) by dipping the body hook (1a) of said can body (1) from above into a fluidal compound (10) or by bringing said body hook (1a) into contact (v) with a fluidal compound.
Process according to one of the aforementioned claims, wherein said body (1) and said body hook (1a) are rotated (α) at least when contacting or being dipped into said raw compound (10).
Process according to one of the aforementioned claims, wherein said body (1) and said body hook (1a) are rotated (α,alpha) at least when contacting or being dipped into said compound (10).
Process according to one of the aforementioned claims, wherein the application of the compound (10) is effected by a downward movement (v) and a rotatory movement (α) of said can body (1).
Process according to one of the aforementioned claims, wherein the application of said compound (10) is effected by a downward movement (v) and a rotatory movement (α,alpha) of said can body (1).
Process according to one of the aforementioned claims, wherein the dipping depth of said body hook (1a) is slightly deeper than the thickness (d) of the metal sheet to apply (10b) said compound (10) also on the reverse side of said body hook (1a).
Process according to one of the aforementioned claims, wherein the dipping depth of said body hook (1a) is slightly deeper than the thickness (d) of the metal sheet to apply (10b) said compound (10) also on the reverse side of said body hook (1a).
Process according to one of the aforementioned claims, wherein said seam is a multiple seam, particularly a double seam.
Process according to one of the aforementioned claims, wherein said seam is a multiple seam, particularly a double seam.
Process according to one of the aforementioned claims, wherein at least one of the radial position and the distribution of the applied compound being modified, particularly slightly in radially inward direction, by quickly reversing said can body (1) after dipping into or contact with said compound.
Dependencies are inferred from the claim text.