Flexible, durable, stretchable paper web, method of forming it and use of same

Claim 2

A flexible, stretchable, smooth, durable paper web comprising, a) a substrate having a basis weight in the range of from about 30 to 75 gsm comprising cellulose papermaking fibers, b) said substrate containing a fine crepe pattern in the range of from about 11.3 to 39.8 lines per linear cm (30 to 100 lines per linear inch) that has been subjected to pressure to smooth the substrate surface, c) said substrate containing as a saturant between about 15 to about 75 parts per 100 parts by weight based on the fiber weight of a polymer characterized by a glass transition temperature in the range of -45° to 0°C, whereby said saturated substrate has a flexibility in the range of from about 10 mg to 50 mg, and an elongation in the range of from about 15% to 35%, and Sheffield smoothness of in the range from about 20 to 250.

Claim 3

The paper web of Claim 1 further including a print receptive coating applied to one surface in a weight range of from about 7 gsm to 55 gsm.

Claim 4

The paper web of Claim 1 or 2 further including an adhesive coating applied to a surface in the range from about 15 gsm to 30 gsm.

Claim 5

The paper web of Claim 3 wherein the basis weight is in the range of from about 35 gsm to 60 gsm, the fine creoe pattern is in the range of from about 15.75 to 31.5 lines per linear cm (40 to 80 lines per linear inch), the saturant comprises an acrylic polymer, the print receptive coating comprises a heat reactive polyacrylate, and the adhesive comprises a pressure sensitive hot melt.

Claim 6

The web of claim 1 in which said substrate contains as the saturant an acrylic polymer further comprising, d) on one surface of said web a surface coating in the range of from about 7'gsm to 55 gsm, by weight of a print receptive composition and e) on the surface opposite said print receptive coating, a hot-melt adhesive coating in the range of from about 15 gsm to 30 gsm.

Claim 9

Use of the web of claim 5 as a durable label particularly suitable for squeezable containers.

Claim 10

In combination, a flexible container and label adhesively attached thereto, the improvement wherein said label comprises, a) a substrate having a basis weight in the range of from about 30 gsm to 75 gsm comprising cellulose papermaking fibers, b) said substrate containing a fine crepe pattern in the range of from about 11.8 to 39.8 lines per linear cm (30 to 100 lines per linear inch) that has been subjected to pressure to smooth a substrate surface, c) said substrate containing as a saturant between about 15 to 75 parts per hundred parts of fiber weight of an acrylic polymer characterized by a Tg in the range of from about -45° to 0°C, d) on one surface of said web a surface coating in the range of from about 7 gsm to 55 gsm, by weight of a print receptive composition, e) on the surface opposite said print receptive coating, a hot-melt adhesive coating in the range of from about 15 gsm to 30 gsm, whereby said label has a flexibility in the range of from about 10 mg to 50 mg, elongation in the range of from about 15 % to 35 %, and Sheffield smoothness in the range of from about 20 to 250.

Claim 11

In combination, a flexible container and label adhesively attached thereto, the improvement wherein said label comprises, a) a substrate having a basis weight in the range of from about 30 gsm to 75 gsm comprising cellulose papermaking fibers, b) said substrate containing a fine crepe pattern in the range of from about 11.8 to 39.8 lines per linear cm (30 to 100 lines per linear inch) that has been subjected to pressure to smooth a substrate surface, c) said substrate containing as a saturant between about 15 to 75 parts per hundred parts of fiber weight of an acrylic polymer characterized by a Tg in the range of from about -45° to 0°C, d) on one surface of said web a surface coating in the range of from about 7 gsm to 55 gsm, by weight of a print receptive composition, e) on the surface opposite said print receptive coating, a hot-melt adhesive coating in the range of from about 15 gsm to 30 gsm, whereby said label has a flexibility in the range of from about 10 mg to 50 mg, elongation in the range of from about 15 % to 35 %, and Sheffield smoothness in the range of from about 20 to 250.