EP0081963A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Self adhesive labels
Assignee: John Waddington PLC
•
Filing: 1982-12-07
•
Granted: —
•
Expires: 2002-12-07
Abstract
Abstract The invention discloses the manufacture of self adhesive labels in roll form, without a backing strip: The base web material is non-fibrous and is substantially inextensible, and it is coated on one side with release material such as a polymerisable silicone resin, and on the other side with pressure sensitive adhesive. The web is die cut to define labels therein which can be removed from the remainder of the web and applied directly to products at an application station by a method and means forming part of the invention. The die cutting may be carried out prior to the application of the release coating, or subsequently, including immediately before the application station. The invention also includes a method of making the labels using relatively small dimensioned curing and/or drying ovens for the release coating and adhesive, and also release coaters and adhesive applicators.
Inventors
- 👤 Thomas Norman Gaunt
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 16:57
CPC Classifications
B; B65; B65C; B65C9/00; B65C9/26; B65C9/30; B31; B31D; B31D1/00; B31D1/02; B31D1/021; B65C9/08; B65C9/12; B65C9/14; B65C9/18; B65C9/1865; G; G09; G09F; G09F3/00; G09F3/02; G09F3/0286; G09F3/08; G09F3/10
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
59 words
Ahesive labels in roll form defined by a web of non-porous material which is substantially non- etensible, said web having at one side of the web a pressure sensitive adhesive and having at the other side of the web a pressure sensitive adhesive release coating whereby the web can be rolled up without the need for a backing strip.
Claim 2
Dependent Claim
59 words
Ahesive labels in roll form defined by a web of non-porous material which is substantially non- etensible, said web having at one side of the web a pressure sensitive adhesive and having at the other side of the web a pressure sensitive adhesive release coating whereby the web can be rolled up without the need for a backing strip.
Claim 3
Dependent Claim
32 words
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
Dependent Claim
44 words
Adhesive labels according to claim 1 or 2, wherein the web is die cut to define individual labels tnerein 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
Dependent Claim
27 words
Adhesive labels according to claim 1, 2 or 3, wherein the web is of a synthetic resinous material containing an inroganic filler such as talc or chalk.
Claim 6
Dependent Claim
20 words
Adhesive labels according to any preceding claim, wherein the labels are printed prior to the application of the release coating.
Claim 7
Dependent Claim
17 words
Adhesive labels according to any preceding claim, wherein the release coating is a silicone based, polymerisable coating.
Claim 8
Dependent Claim
23 words
Adhesive labels according to any preceding claim, wherein the release coating is applied in quanyi the oruer of 2 grams per sq. metre.
Claim 9
Dependent Claim
80 words
Adhesive labels in roll form comprising a web of base material, a pressure sensitive adhesive on one side of the web and a pressure sensitive adhesive release coating on the other side so that the web can be rolled up without the use of a backing strip, the web having defined therein by die cuting or the like, individual labels, which can be individually detached from the roll, and by virtue of the adhesive, attached to articles to be labelled.
Claim 10
Dependent Claim
80 words
Adhesive labels in roll form comprising a web of base material, a pressure sensitive adhesive on one side of the web and a pressure sensitive adhesive release coating on the other side so that the web can be rolled up without the use of a backing strip, the web having defined therein by die cuting or the like, individual labels, which can be individually detached from the roll, and by virtue of the adhesive, attached to articles to be labelled.
Claim 11
Dependent Claim
50 words
Adhesive labels according to claim 8, wherein the release coating is applied to the web after the die cutting or the like, so that the release coating fills the cuts to lessen the tendency of the labels to aetach from the web as unrolling of the web is taking place.
Claim 12
Dependent Claim
32 words
Aahesive labels according to claim 8 or 9, wherein the labels are defined in the web by die cutting, leaving catch points holding the labels to a skeletal remainder of the web.
Claim 13
Dependent Claim
90 words
ll. A method of manufacturing labels wherein a web of non-fibrous material which is relatively inextensible is printed to define individual labels therein, a pressure sensitive adhesive is applied to one side of the web and a pressure sensitive adhesive release coating is applied to the other side of the web so that the web of labels can be rolled up without requiring a backing strip, the adhesive and release coating being subjected, if necessary, to treatment to dry/and or cure the same before rolling the web into roll form.
Claim 14
Dependent Claim
90 words
ll. A method of manufacturing labels wherein a web of non-fibrous material which is relatively inextensible is printed to define individual labels therein, a pressure sensitive adhesive is applied to one side of the web and a pressure sensitive adhesive release coating is applied to the other side of the web so that the web of labels can be rolled up without requiring a backing strip, the adhesive and release coating being subjected, if necessary, to treatment to dry/and or cure the same before rolling the web into roll form.
Claim 15
Dependent Claim
35 words
A methou according to claim 11, wherein the adhesive is solvent based and the web, after the adhesive nas been applied, is passed through a heating oven to drive off the solvent in the adhesive.
Claim 16
Dependent Claim
33 words
A method according to claim 11 or 12, wherein the release coating is an ultra violet curable material and the web is passed through an ultra violet oven to cure said release coating.
Claim 17
Dependent Claim
37 words
A method according to claim 10 or 11, wherein the release coating is a heat curable material, and the web is passed through a hot air oven at a temperature of 110°C to cure the release coating.
Claim 18
Dependent Claim
23 words
A method according to claim 13, wherein the dwell time in the release coating curing oven is of the order of 10 seconds.
Claim 19
Independent Claim
43 words
A method according to any of claims 11 to 15, wherein the web travels in a continuous path through a release coating station, a release coating curing station, an adhesive application station and an adhesive drying station, but not necessarily in that order.
Claim 20
Dependent Claim
32 words
A method according to claim 14, wherein there is also a die cutting station in the said path, for cutting the individual labels in the web for removal at a later date.
Claim 21
Dependent Claim
17 words
A method according to claim 14, wherein the die cutting station is before the release coating suction.
Claim 22
Independent Claim
29 words
A method according to any preceding claim wherein the web is a synthetic plastics web containing an inorganic filler and is of thickness in the order of 80 microns.
Claim 23
Dependent Claim
15 words
Apparatus for manufacturing labels according to the method of any of claims 11 to 19.
Claim 24
Independent Claim
61 words
A method of applying labels to articles using a web of labels according to any of claims 1 to 10, wherein the web is advanced to a unit operting in synchronism with the feed of articles to which the labels are to be applied, said unit taking labels one by one from the web and applying same to the moving articles.
Claim 25
Dependent Claim
25 words
A method according to claim 21, wherein the unit removes the individual labels from the web, said labels having previously been cut in the web.
Claim 26
Dependent Claim
23 words
A method according to claim 21, wherein the unit removes the individual labels from the web after cutting the labels from the web.
Claim 27
Dependent Claim
60 words
A method according to claim 22 or 23, wherein the unit has a drum of which the periphery is perforated, anu the interior is selectively connectea to a source of vacuum so that the labels are removed by vacuum from the web, are retained by the drum for part of a revolution thereof, and then are applied to the articles.
Claim 28
Dependent Claim
21 words
A methou according to claim 24, wherein the perforations in the drum periphery are selectively connectible to the source of vacuum.
Claim 29
Dependent Claim
26 words
A method according to claim 22, 23, 24, or 25, wherein the web is indexed along said patrh as the labels are applied to the articles.
Claim 30
Dependent Claim
69 words
A method according to any preceding claim 11 to 19 or 21 to 26, wherein the web has sprocket holes therein at each side, and these are engaged by tractor feeds for the guiding and feeding of the web in any instance when the web is required to move either in the application of the release coating and/or adhesive or in the application of the labels to the articles.
Claim 31
Dependent Claim
16 words
Apparatus for applying labels in accordance with the method of any of claims 21 to 26.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.