Mono and multi-layer labels
Disclosed herein are sheets, labels, label stock, and articles comprising the same. Additionally disclosed are method for making the sheets, labels, label stock, and articles comprising the same. In some embodiments, the sheets, labels, and label stock comprise one or more layers, wherein at least one layer comprises microspheres. In some embodiments, the sheets, labels, and label stock comprise one or more layers of a foam material. In some embodiments, one or more layers comprise a cellulose material.
1 . A sheet comprising;
a first layer comprising microspheres;
wherein the sheet is configured to contact a container.
2 . The sheet of claim 1 , wherein the layer comprising microspheres additionally comprises one or more carrier materials.
3 . The sheet of claim 2 , wherein the one or more carrier materials comprises polypropylene.
4 . The sheet of claim 2 , wherein the one or more carrier materials comprises cellulose material.
5 . The sheet of claim 4 , wherein the cellulose material comprises pulp.
6 . The sheet of claim 4 , wherein the cellulose material is paper.
7 . The sheet of claim 1 , wherein the sheet comprises at least one layer comprising paper, and wherein the at least one layer comprising paper is substantially free of microspheres.
8 . The sheet of claim 7 , wherein at least part of the microspheres are collapsed microspheres and the sheet has a thickness of less than 10 mils.
9 . The sheet of claim 8 , wherein the sheet has a thickness of between about 3 mils and about 8 mils.
10 . The sheet of claim 1 , wherein the sheet comprises a layer configured to adhere to one or more article substrates selected from the group consisting of glass, paper, plastic, wood, and metal.
11 . The sheet of claim 1 , wherein the sheet comprises one or more layers adapted to receive indicia.
12 . The sheet of claim 11 , wherein at least one layer adapted to receive indicia is an outer layer.
13 . The sheet of claim 1 , further comprising:
a second layer adapted to receive indicia;
a third layer adapted to adhere the sheet to an article; and
wherein the first layer is positioned between the second and third layer.
14 . The sheet of claim 1 , wherein the second layer has a wall thickness less than about one half of a wall thickness of the first layer.
15 . The sheet of claim 1 , wherein the second layer has a wall thickness less than about one quarter of a wall thickness of the first layer.
16 . The sheet of claim 1 , wherein the second layer has a wall thickness less than about one tenth of a wall thickness of the first layer.
17 . The sheet of claim 13 , wherein the first layer is shrinkable.
18 . The sheet of claim 13 , wherein the second layer is shrinkable.
19 . The sheet of claim 1 , wherein one or more layers comprises a foam material.
20 . The sheet of claim 19 , wherein the foam material comprises one or more foaming agents selected from chemical blowing agents and physical blowing agent.
21 . The sheet of claim 1 , wherein the layer comprising microspheres is an outer layer of the sheet.
22 . The sheet of claim 1 , wherein the layer comprising microspheres is an inner layer of the sheet.
23 . The sheet of claim 1 , wherein the microspheres comprises mostly fully collapsed microspheres, partially expanded microspheres, or fully expanded microspheres.
24 . The sheet of claim 1 , wherein the layer comprising microspheres comprises more than about 60% by volume of the sheet.
25 . The sheet of claim 1 , wherein the sheet comprises mostly PP by weight.
26 . The sheet of claim 1 , wherein the layer comprising microspheres is an outer layer.
27 . The sheet of claim 1 , wherein the layer comprising microspheres is an intermediate layer between the first inner layer and an outer layer.
28 . A container comprising the sheet of claim 1 , wherein the sheet is configured to adhere to the container.
29 . A label comprising:
an upper surface adapted to be printed upon;
a lower surface adapted to adhere to an article substrate; and
a body positioned between the upper surface and the lower surface, the body comprising an expandable material, wherein the expandable material comprises microspheres.
30 . The label of claim 29 , wherein the expandable material further comprises a carrier material.
31 . The label of claim 30 , wherein the carrier material comprises polypropylene.
32 . The label of claim 30 , wherein the carrier material comprises cellulose material.
33 . The label of claim 32 , wherein the cellulose material comprises paper.
34 . The label of claim 29 , wherein one or more of the upper or lower surfaces comprise polypropylene.
35 . The label of claim 29 , wherein the upper surface comprises a water resistant barrier material.
36 . The label of claim 29 , wherein at least part of the microspheres are collapsed microspheres and the sheet has a thickness of less than 10 mils
37 . The label of claim 36 , wherein the sheet has a thickness of between about 3 mils and about 8 mils.
38 . The label of claim 29 , wherein the article substrate selected from the group consisting of glass, paper, plastic, wood, and metal.
39 . The label of claim 29 , wherein one or more of the body and the upper surface are shrinkable.
40 . The label of claim 29 , wherein the upper surface comprises a foam material.
41 . The label of claim 29 , wherein the body is formed by an extrusion process.
42 . The label of claim 29 , wherein the upper surface is a coating formed by a process selected from the group consisting of dip, spray, flow, and roller coating.
43 . The label of claim 29 , wherein the body comprises more than about 60% by volume of the label.
44 . A method of producing foamed label stock comprising:
providing a label stock, wherein the label stock comprises one or more layers, and wherein at least one layer comprises microspheres;
heating the label stock in a manner configured to expand at least some of the microspheres.
45 . The method of claim 44 , further comprising cutting the label stock into labels.
46 . The method of claim 45 , wherein the labels are applied to one or more containers.
47 . The method of claim 44 , wherein the step of heating the label stock comprises passing the label stock through a heating system configured to heat the label stock on one or more sides.
48 . The method of claim 44 , further comprising cooling the label stock decrease and/or discontinue the expansion of the microspheres.
49 . The method of claim 48 , wherein the step of cooling the label stock comprises passing the label stock through one or more rollers, wherein at least one of the rollers is at a temperature less than that which would cause further expansion of the microspheres.
50 . The method of claim 49 , wherein the temperature is less than 120° C.
51 . The method of claim 50 , wherein the temperature is less than 100° C.
52 . The method of claim 51 , wherein the temperature is less than 60° C.
53 . The method of claim 52 , wherein the temperature is less than 25° C.
54 . The method of claim 44 , further comprising:
applying an aqueous solution or dispersion of a thermoplastic polymeric material to the surface of the label stock; and
drying the solution or dispersion at a temperature that does not substantially cause the expansion of the microspheres to form a layer.
55 . The method of claim 44 , further comprising printing the label stock.
56 . A method of forming a label comprising:
providing a label stock, wherein the label stock comprises paper;
applying an aqueous solution or dispersion comprising an expandable material to the label stock;
drying the solution or dispersion at a temperature that does not substantially cause expansion of the microspheres to form a layer on the label stock; and
cutting the label stock to produce one or more labels.
57 . The method of claim 56 , further comprising applying the one or more labels to a container.
58 . The method of claim 56 , further comprising printing the layer.
59 . The method of claim 56 , wherein the paper receives indicia prior to applying the aqueous solution or dispersion.
60 . The method of claim 56 , wherein the expandable material comprises microspheres.
61 . The method of claim 56 , wherein the layer comprising expandable material is heated to produce a foam.
62 . A method of producing a label comprising:
mixing an expandable material with one or more selected from cellulose material, paper, or pulp to produce a mixture;
forming a label from the mixture; the label comprising at least one layer, the at least one layer comprising the expandable material and the one or more selected from cellulose material, paper, or pulp; and
wherein the expandable material comprises microspheres.