Down-like cotton material and method for producing the same
AssigneeHirakawa Corporation
InventorSHOICHI HIRAKAWA
Life of this patent
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Abstract
The present invention provides a novel down-like cotton material which is bulky, light-weight, excellent in washing resistance, heat-retaining property and heat insulation property and provides volume feeling, without odor from animals. The down-like cotton material 1 of the present invention is formed as a cotton-like long fiber, in which filaments of an axial fiber and a float each composed of a polyester raw yarn are united by air entangling in air flow to be entangled, connected and integrated to have a down ball-like mass in an aligned form, and the diameter of the down ball-like mass is 1.0 to 3.5 cm and down ball-like masses are continually aligned at an interval of up to about 10 cm or less in a length direction of the axial fiber.
Claims29
A down-like cotton material comprising an axial fiber and a float each composed of a polyester raw yarn, wherein filaments of the axial fiber and the float are united by air entangling in air flow to be entangled, connected and integrated to have a down ball-like mass, wherein the down ball-like mass has a predetermined diameter in an aligned form, and the down ball-like mass is continually aligned at a predetermined interval in a length direction of the axial fiber to form a cotton-like long fiber.
A down-like cotton material comprising an axial fiber and a float each composed of a polyester raw yarn, wherein filaments of the axial fiber and the float are united by air entangling in air flow to be entangled, connected and integrated to have a down ball-like mass, wherein the diameter of the down ball-like mass in an aligned form is 1.0 to 3.5 cm, and the down ball-like mass is continually aligned at an interval of up to about 10 cm or less in a length direction of the axial fiber to form a cotton-like long fiber.
A down-like cotton material comprising an axial fiber and a float each composed of a polyester raw yarn, wherein filaments of the axial fiber and the float are united by air entangling in air flow to be entangled, connected and integrated to have a down ball-like mass, wherein the diameter of the down ball-like mass in an aligned form is 1.0 to 3.5 cm, and the down ball-like mass is continually aligned at an interval of up to about 10 cm or less in a length direction of the axial fiber to form a cotton-like long fiber, and a silicone resin is fixed to the cotton-like long fiber to thermally stabilize the shape.
A method for producing a down-like cotton material comprising:
- a step of each feeding an axial fiber and a float each composed of a polyester raw yarn into a unit for air entangling;
- a step of entangling by air to unite filaments of the axial fiber and the float by air entangling in a unit for air entangling in air flow to be entangled, connected and integrated to have a down ball-like mass, wherein a down ball-like mass in an aligned form has a predetermined diameter, and the down ball-like mass is continually aligned at a predetermined interval in a length direction of the axial fiber to provide a down-like cotton material as a cotton-like long fiber;
- and
- a step of reeling the down-like cotton material.
A method for producing a down-like cotton material comprising:
- a step of each feeding an axial fiber and a float each composed of a polyester raw yarn into a unit for air entangling;
- a step of entangling by air to unite filaments of the axial fiber and the float by air entangling in a unit for air entangling in air flow to be entangled, connected and integrated to have a down ball-like mass, wherein the diameter of a down ball-like mass in an aligned form is 1.0 to 3.5 cm, and the down ball-like mass is continually aligned at an interval of up to about 10 cm or less in a length direction of the axial fiber to provide a down-like cotton material as a cotton-like long fiber;
- and
- a step of reeling the down-like cotton material.
A method for producing a down-like cotton material comprising:
- a step of each feeding an axial fiber and a float each composed of a polyester raw yarn into a unit for air entangling;
- a step of entangling by air to unite filaments of the axial fiber and the float to be entangled, connected and integrated to have a down ball-like mass by air entangling in air flow externally fed formed between a tip nozzle portion of a nozzle tube portion and a mortar-like wall surface portion of a venturi in a unit for air entangling, wherein the diameter of a down ball-like mass in an aligned form is 1.0 to 3.5 cm, and the down ball-like mass is continually aligned at an interval of up to about 10 cm or less in a length direction of the axial fiber to provide a down-like cotton material as a cotton-like long fiber;
- a step of reeling the cotton-like long fiber;
- a step for processing a silicone resin for applying a silicone agent to the down-like cotton material;
- a first heating step for heating the down-like cotton material having the silicone agent to remove moisture;
- a second heating step for heating the down-like cotton material having no moisture and stabilizing the shape by thermal contraction;
- and
- a step of cooling for cooling the down-like cotton material after a second heating step is completed.
Dependencies are inferred from the claim text.