Method of heat-sealing adhesive bandage and adhesive bandage made by using said method
OwnerYasushi Mashiko, Takeshi Yoshida +1inventors
InventorsYasushi Mashiko, Takeshi Yoshida, Toshikazu Saito
Life of this patent
Estimating the term…
Abstract
Adhesive-coated sheet material having a base sheet with a layer of adhesive applied thereto. The base sheet comprises a laminate of a thermoplastic fiber fabric and a film of polymeric material, with at least a portion of the laminate being heat-sealed in a discontinuous pattern. The adhesive is applied to the fabric surface of the laminate. Methods of forming the adhesive-coated sheet are disclosed. A wound contacting pad may be adhered to the adhesive-coated sheet material to form an adhesive bandage.
Claims20
A method for making an adhesive-coated sheet material, said method comprising the steps of:
- A. providing a film of polymeric material;
- B. providing a thermoplastic fiber fabric;
- C. laminating said film to said fabric to form a laminated sheet material having a fabric surface and a film surface;
- D. applying a layer of adhesive to said fabric surface of said laminated sheet material;
- and
- E. heat-sealing at least a portion of said laminated sheet material in a discontinuous pattern.
A method for making an adhesive bandage, said method comprising the steps of:
- A. providing a film of polymeric material;
- B. providing a thermoplastic fiber fabric
- C. laminating said film to said fabric to form a laminated sheet material having a fabric surface and a film surface;
- D. applying a layer of adhesive to said fabric surface of said laminated sheet material;
- E. heat-sealing at least a portion of said laminated sheet material in a discontinuous pattern;
- and
- F. securing a wound-contacting pad to the adhesive coating of said laminated sheet material.
An adhesive-coated sheet material comprising:
- a. a film of polymeric material;
- b. a thermoplastic fiber fabric, and
- c. an adhesive,
- said film being laminated to said thermoplastic fiber fabric;
- said laminate having a fabric surface and a film surface;
- said adhesive being applied to said fabric surface of said laminate;
- and at least a portion of said laminate being heat-sealed in a discontinuous pattern.
An adhesive bandage comprising:
- a. a film of polymeric material;
- b. a thermoplastic fiber fabric;
- c. an adhesive;
- d. a wound-contacting pad;
- said film being laminated to said thermoplastic fiber fabric;
- said laminate having a fabric surface and a film surface;
- said adhesive being applied to said fabric surface of said laminate;
- at least a portion of said laminate being heat-sealed in a discontinuous pattern;
- said pad being secured to said laminate by said adhesive.
Dependencies are inferred from the claim text.