Method of manufacturing a body adhering absorbent article oriented in the machine direction with reduced curl

Patent metadata

Field	Value
Publication number	US-9468564-B2
Application number	US-201414280841-A
Country	US
Kind code	B2
Filing date	May 19, 2014
Priority date	Feb 8, 2011
Publication date	Oct 18, 2016
Grant date	Oct 18, 2016

Abstract

The present disclosure provides methods of manufacturing a body adhering absorbent article oriented in the machine direction wherein the body adhering absorbent articles have reduced or eliminated curl. The articles are manufactured with reduced curl by selectively reducing or eliminating the shell elastic tension in regions where components of the body adhering absorbent article are to be attached to form the composite absorbent article web. In certain aspects the body adhering absorbent articles are manufactured by supplying an elastic web of shell material having a longitudinal and transverse direction, stretching the web of shell material in the longitudinal direction, deadening at least one region of the stretched web of shell material, attaching at least one absorbent article component to at least a portion of the longitudinal deadened zone to form a composite web material, and cutting the composite web material to form a body adhering absorbent article.

First claim

We claim:

1. A method of manufacturing a body adhering absorbent article oriented in the machine direction comprising:
a. supplying an elastic web of shell material having a longitudinal and transverse direction;
b. maintaining the elastic web of shell material in an untensioned state;
c. attaching at least one adhesive transfer layer and an absorbent component to the untensioned elastic web of shell material to form a composite web material wherein the adhesive transfer layer and the absorbent component are spaced apart from each other in the machine direction; and
d. cutting the composite web material to form the body adhering absorbent article having a predetermined size and shape.

2. The method of claim 1 wherein the step of attaching comprises laminating, adhesive attachment, thermal bonding, pressure bonding or ultrasonic bonding.

3. A method of manufacturing a body adhering absorbent article oriented in the machine direction comprising:
a. supplying an activatable web of shell material having a longitudinal and transverse direction;
b. intermittently activating a portion of the web of shell material in the longitudinal direction to create activated and nonactivated portions of the web of shell material in the longitudinal direction;
c. attaching at least one adhesive transfer layer and an absorbent component to the at least one nonactivated portion of the web of shell material to form a composite web material wherein the adhesive transfer layer and the absorbent component are spaced apart from each other in the machine direction; and
d. cutting the composite web material to form the body adhering absorbent article having a predetermined size and shape.

4. The method of claim 3 wherein the activatable web of shell material is a mechanically activatable web of shell material.

5. The method of claim 4 wherein the mechanically activatable web of shell material is a composite comprising at least one inelastic material and at least one elastic material.

6. The method of claim 3 wherein the activatable web of shell material is a mechanically activatable web of shell material and the step of activating comprises mechanically activating the web of shell material by passing the web of shell material through a pair of interconnecting laterally grooved rolls.

7. The method of claim 3 wherein the activatable web of shell material is a heat activatable web of shell material.

8. The method of claim 7 wherein the heat activatable web of shell material is selected from a group consisting of microwave activated shell materials and heat activated shell materials.

9. The method of claim 3 wherein the activatable web of shell material is a heat activatable web of shell material and the step of activating comprises intermittently heating the web of shell material.

10. The method of claim 7 wherein the step of activating comprises passing the web of shell material through an apparatus configured for zoned heated compression of the web of shell material.

11. The method of claim 3 wherein the step of attaching comprises laminating, adhesive attachment, thermal bonding, pressure bonding or ultrasonic bonding.

12. A method of manufacturing a body adhering absorbent article oriented in the machine direction comprising:
a. supplying a web of shell material having elastic and nonelastic zones;
b. attaching at least one adhesive transfer layer and an absorbent component to the nonelastic zone of the web of shell material to form a composite web material wherein the adhesive transfer layer and the absorbent component are spaced apart from each other in the machine direction; and
c. cutting the composite web material to form the body adhering absorbent article having a predetermined size and shape.

13. The method of claim 12 wherein the step of attaching comprises laminating, adhesive attachment, thermal bonding, pressure bonding or ultrasonic bonding.

Assignees

• Kimberly Clark Co

Inventors

• Popp Robert Lee
• Gottleib Jay David
• Coenen Joseph Daniel
• Turchan Gary Alan

Classifications

• B32B2555/02

  Diapers or napkins · CPC title

• A61F13/82

  with means for attaching to the body · CPC title

• B32B2310/028

  using vibration, e.g. sonic or ultrasonic · CPC title

• B32B37/12

  characterised by using adhesives · CPC title

• A61F13/15707 Primary

  Mechanical treatment, e.g. notching, twisting, compressing, shaping · CPC title