Absorbent article
AssigneeEssity Hygiene and Health Aktiebolag
InventorsLisa Palmqvist, Anna Knös, Philip Blomström
Life of this patent
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Abstract
The absorbent article comprises at least a topsheet layer and a backsheet layer, each layer having a body facing surface and a garment facing surface, and longitudinal and transversal edges, the article having a longitudinal front portion, a longitudinal back portion and a crotch portion located between the front and the back portion. The article comprises a first and a second zone of microencapsulated phase change material on a surface of a layer of the article. The first and second zones are selected form zones having different microencapsulated phase change materials, different concentrations of a microencapsulated phase change material or comprise microencapsulated phase change material having different phase change temperature intervals.
Claims32
An absorbent article comprising at least a nonwoven topsheet layer and a backsheet layer, each layer having a body facing surface and a garment facing surface, and longitudinal and transversal edges, the article having a longitudinal front portion, a longitudinal back portion and a crotch portion located between the front and the back portion,
- the article comprising:
- a first zone and a second zone of microencapsulated reversible temperature-regulating phase change material (PCM) in non-breakable microcapsules on a surface of a layer of the article,
- wherein the first zone includes:
- a different non-breakable microencapsulated reversible temperature-regulating phase change material than what is in the second zone;
- a different concentration of non-breakable microencapsulated reversible temperature-regulating phase change material than what is in the second zone;
- or
- a non-breakable microencapsulated reversible temperature-regulating phase change material having different phase change temperature intervals than what is in the second zone,
- wherein the first and second zones have different boundaries,
- wherein the first zone includes two first end portions and a first middle portion between the two first end portions,
- wherein the second zone includes two second end portions and a second middle portion between the two second end portions,
- wherein the two first end portions are non-overlapping with the two second end portions, and
- wherein the first middle portion and the second middle portion overlap one another.
A method of applying reversible temperature-regulating phase change material (PCM) to an absorbent article comprising at least a nonwoven topsheet layer and a backsheet layer, each layer having a body facing surface and a garment facing surface and longitudinal and transversal edges, the article having a longitudinal front portion, a longitudinal back portion and a crotch portion located between the front and the back portion, the method comprising the steps of:
- printing a first zone and a second zone of non-breakable microencapsulated phase change material on a surface of a layer of the article,
- wherein the first zone includes:
- a different non-breakable microencapsulated reversible temperature-regulating phase change material than what is in the second zone;
- a different concentration of non-breakable microencapsulated reversible temperature-regulating phase change material than what is in the second zone;
- or
- a non-breakable microencapsulated reversible temperature-regulating phase change material having different phase change temperature intervals than what is in the second zone,
- wherein the first and second zones have different boundaries,
- wherein the first zone includes two first end portions and a first middle portion between the two first end portions,
- wherein the second zone includes two second end portions and a second middle portion between the two second end portions,
- wherein the two first end portions are non-overlapping with the two second end portions, and
- wherein the first middle portion and the second middle portion overlap one another.
An absorbent article comprising at least a nonwoven topsheet layer and a backsheet layer, each layer having a body facing surface and a garment facing surface, and longitudinal and transversal edges, the article having a longitudinal front portion, a longitudinal back portion and a crotch portion located between the front and the back portion,
- the article comprising:
- a first zone and a second zone of microencapsulated reversible temperature-regulating phase change material (PCM) in non-breakable microcapsules on a surface of a layer of the article,
- wherein the first zone includes:
- a different non-breakable microencapsulated reversible temperature-regulating phase change material than what is in the second zone;
- a different concentration of non-breakable microencapsulated reversible temperature-regulating phase change material than what is in the second zone;
- or
- a non-breakable microencapsulated reversible temperature-regulating phase change material having different phase change temperature intervals than what is in the second zone,
- wherein the first and second zones have different boundaries and are non-overlapping.
A method of applying reversible temperature-regulating phase change material (PCM) to an absorbent article comprising at least a nonwoven topsheet layer and a backsheet layer, each layer having a body facing surface and a garment facing surface and longitudinal and transversal edges, the article having a longitudinal front portion, a longitudinal back portion and a crotch portion located between the front and the back portion, the method comprising the steps of:
- printing a first zone and a second zone of non-breakable microencapsulated phase change material on a surface of a layer of the article,
- wherein the first zone includes:
- a different non-breakable microencapsulated reversible temperature-regulating phase change material than what is in the second zone;
- a different concentration of non-breakable microencapsulated reversible temperature-regulating phase change material than what is in the second zone;
- or
- a non-breakable microencapsulated reversible temperature-regulating phase change material having different phase change temperature intervals than what is in the second zone,
- wherein the first and second zones have different boundaries and are non-overlapping.
Dependencies are inferred from the claim text.