Self adhesive labels and the manufacture thereof

Claim 2

Self adhesive label stock material which is wound into roll form and can be unwound for use comprising a substrate label web which on one side is printed with repeating and equally pitched label information so that individual labels can be taken therefrom and applied to products, and having sprocket holes for engagement with a sprocket member as the substrate passes through appli-cator apparatus, said holes being pitched in register with the pitching of the printing, a self adhesive coating covering only a fraction of the whole of the surface area of one side of the substrate to increase the ease with which the labels can be applied to the products, and wherein there is a release surface which contacts the other side of the adhesive when the stock material is in roll form ensuring that the adhesive will remain adhered to the substrate web when the material is unrolled.

Claim 3

Adhesive labels according to claim 1, wherein said web has either perforations defining individual labels which can be removed one by one, or having no cuts or other lines of weakening therein.

Claim 4

Adhesive labels according to claim 1, wherein the web is die cut to define individual labels therein and the release coating is applied over the cuts to provide extra retention strength holding the labels together or to the remainder of the web.

Claim 5

Adhesive labels according to claim 1, 2 or 3, wherein the web is of a synthetic resinous material containing an introganic filler such as talc or chalk.

Claim 6

Adhesive labels according to claim 1, 2, or 3 wherein the labels are printed prior to the application of the release coating.

Claim 7

Adhesive labels according to claim 1, 2 or 3, wherein the release coating is applied in quantities in the order of 0.1 to 1.5 grams per sq. metre. CLAIMS SUPPORTED BY SUPPLEMENTARY DISCLOSURE

Claim 8

Self adhesive label stock material which is wound into roll form without a backing web and can be unwound for use comprising:-a) substrate web; b) printing on the web defining evenly pitched labels on at least one of the sides of the web; c) a release coating on one side of the web; d) sprocket drive holes at each edge of the web in register with the label printing for the driving of same through an applicator mechanism; e) pressure sensitive adhesive on the side of the web opposite said release coating, said adhesive extending widthwise of the web to at least the same extent as the label printing, but clear of the sprocket holes, whereby the labels can be applied to moving articles by being fed continuously through an applicator machine which cuts the labels individually from the web by being passed through two rotating rollers defining a nip, and of which rollers one has cutting die means and the other is an anvil roller.

Claim 9

Self adhesive label stock material which is wound into roll form without a backing web and can be unwound for use comprising:-a) substrate web; b) printing on the web defining evenly pitched labels on at least one of the sides of the web; c) a release coating on one side of the web; d) sprocket drive holes at each edge of the web in register with the label printing for the driving of same through an applicator mechanism; e) pressure sensitive adhesive on the side of the web opposite said release coating, said adhesive extending widthwise of the web to at least the same extent as the label printing, but clear of the sprocket holes, whereby the labels can be applied to moving articles by being fed continuously through an applicator machine which cuts the labels individually from the web by being passed through two rotating rollers defining a nip, and of which rollers one has cutting die means and the other is an anvil roller.

Claim 12

A method according to Claim 7, wherein the web after the adhesive film has been applied thereto, is applied over a meyerbar which monitors the adhesive film thickness before it is passed to a curing medium.