Claims
- 1. A roll of adhesive tape comprising a binder-containing nonwoven web having a longitudinal axis and a lateral axis which is coated on a major surface with a pressure sensitive adhesive which web is substantially resistant to tearing along the lateral axis and which is linerless; the adhesively-coated web having a plurality of longitudinally spaced, laterally extending, perforated separation lines defined by a series of about 0.2 to 5 mm substantially linear perforations separated by about 0.1 to 1 mm connecting segments of tape and a ratio of perforation length to connecting segment length of about 1:1 to 10:1 wherein the perforated tape has a tensile strength of at least about 400 grams per centimeter width and not more than about 3000 grams per centimeter width.
- 2. The roll of tape of claim 1 further comprising a low adhesion backsize.
- 3. The roll of tape of claim 1 wherein the nonwoven web is hydroentangled.
- 4. The roll of tape of claim 1 wherein the nonwoven web is comprised of polyester fibers.
- 5. The roll of tape of claim 1 wherein the perforated separation lines are uniformly longitudinally spaced about 1 to 20 cm apart to define individually separable sheets of tape having identical longitudinal lengths.
- 6. The roll of tape of claim 1 wherein the perforated separation lines are uniformly longitudinally spaced about 2 to 10 cm apart to define individually separable sheets of tape having identical longitudinal lengths.
- 7. The roll of tape of claim 1 wherein the perforated separation lines are defined by perforations which are about 0.5 to 3 mm long, connecting segments which are about 0.2 to 0.8 mm long, and a ratio of perforation length to connecting segment length of about 2:1 to 8:1.
- 8. The roll of tape of claim 1 wherein the perforated separation lines are defined by perforations which are about 1 to 2 mm long, connecting segments which are about 0.3 to 0.6 mm long, and a ratio of perforation length to connecting segment length of about 3:1 to 6:1.
- 9. The roll of tape of claim 1 wherein the perforations are linear perforations which extend laterally across the tape.
- 10. The roll of tape of claim 1 wherein the perforations are linear perforations which extend at an angle of about 30.degree. to 60.degree. from the lateral axis of the tape.
- 11. The roll of tape of claim 1 wherein the perforations are nonlinear perforations.
- 12. The roll of tape of claim 1 wherein the perforations in each separation line have a uniform length.
- 13. The roll of tape of claim 9 wherein the perforations in each separation line have a uniform shape.
- 14. A roll of surgical tape comprising:
- (a) a core, and
- (b) a length of linerless adhesive tape wound around the core;
- (c) wherein the tape comprises at least (i) a binder-containing nonwoven fabric coated on a major surface with a skin compatible pressure sensitive adhesive which is substantially resistant to tearing across the width of the tape, and (ii) a plurality of longitudinally spaced, laterally extending, perforated separation lines defined by a plurality of about 0.2 to 5 mm substantially linear perforations separated by about 0.1 to 1 mm connecting segments of tape and a ratio of perforation length to connecting segment length of about 1:1 to 10:1 wherein the perforated tape has a tensile strength of at least about 400 grams per centimeter width and not more than about 3000 grams per centimeter width.
- 15. A method of dispensing nonwoven tape comprising the steps of:
- (a) unwinding a length of linerless tape from a wound core of the tape wherein the tape comprises a binder-containing nonwoven web coated on a major surface with a pressure sensitive adhesive which tape is substantially resistant to tearing across the width of the tape which includes a plurality of longitudinally spaced, laterally extending, perforated separation lines defined by a plurality of longitudinally spaced, defined by a plurality of about 0.2 to 5 mm substantially linear perforations separated by about 0.1 to 1 mm connecting segments of tape and a ratio of perforation length to connecting segment length of about 1:1 to 10:1 wherein the perforated tape has a tensile strength of at least about 400 grams per centimeter width and not more than 3000 grams per centimeter width, and
- (b) laterally tearing the tape along a separation line to detach a length of tape from the tape remaining on the core.
- 16. A roll of adhesive tape comprising a binder-containing nonwoven fabric having a longitudinal axis and a lateral axis which is linerless, coated on a major surface with a pressure sensitive adhesive, and is substantially resistant to tearing along the lateral axis; the adhesively-coated web having a plurality of longitudinally, about uniformly spaced, laterally extending, perforated separation lines defined by a series of about 0.2 to 5 mm substantially linear perforations separated by about 0.1 to 1 mm connecting segments of tape and a ratio of perforation length to connecting segment length of about 1:1 to 10:1; wherein the perforated tape has a tensile strength of at least 400 grams per centimeter width and not more than 3000 grams per centimeter width.
Parent Case Info
This is a continuing application of U.S. Ser. No. 08/114,912 filed on Aug. 31, 1993, abandoned.
US Referenced Citations (31)
Foreign Referenced Citations (2)
Number |
Date |
Country |
886474 |
Jan 1962 |
GBX |
WO9315245 |
Aug 1993 |
WOX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
114912 |
Aug 1993 |
|