EP0078682A1
Expired / Lapsed
EP
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Wadding materials
Assignee: Kanebo Ltd
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Filing: 1982-10-29
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Granted: —
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Expires: 2002-10-29
Abstract
Abstract Wadding material comprises a mixture of a blend of 90-10% by weight of staple fibres (A) having a monofilament fineness of 3-10 deniers and a curliness of not less than 15% and 10-90% by weight of staple fibres (B) formed of a synthetic polymer and having a monofilament fineness of 0.7-4 deniers and less than that of the staple fibres (A) and a curliness of less than 15 % , together with (I) up to 100 parts by weight, per 100 parts by weight of the blend of staple fibres (A) and (B), of synthetic fibres comprising a component having a melting point which is lower than that of those of staple fibres (A) and (B) by more than 20°C; (ii) from 1-50 parts by weight, per hundred parts by weight of the blend of staple fibres (A) and (B) of film-shaped structural elements (C); or (iii) film-shaped structural elements (C), and up to 100 parts by weight, based on the total weight of the blend of staple fibres (A) and (B) and structural elements (C), of synthetic fibres comprising a component having a melting point which is lower than those of staple fibres (A) and (B) and structural elements (C) by more than 20°C.
Inventors
- 👤 Yugoro Masuda
- 👤 Shigeru Kawase
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 17:25
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; D04H1/42; D04H1/425; D04H1/4326; D04H1/435; D04H1/4382; D04H1/43825; D04H1/43828; D04H1/43832; D04H1/43835; D04H1/4391; D04H1/43914; D04H1/43918; D04H1/43838; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2904; Y10T428/2905; Y10T428/2907; Y10T428/2909; Y10T442/00; Y10T442/20; Y10T442/2311
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
208 words
A wadding material characterised in that it comprises a mixture of a blend of 90-10% by weight of staple fibres (A) having a monofilament fineness of 3-10 deniers and a curliness of not less than 15% and 10-90% by weight of staple fibres (B) formed of a synthetic polymer and having a monofilament fineness of 0.7-4 deniers and less than that of the staple fibres (A) and a curliness of less than 15%, together with (i) up to 100 parts by weight, per 100 parts by weight of the blend of staple fibres (A) 'and (B), of synthetic fibres comprising a component having a melting point which is lower than that of those of staple fibres (A) and (B) by more than 20°C; (ii) from 1-50 parts by weight, per hundred parts by weight of the blend of staple fibres (A) and (B) of film-shaped structural elements (C); or (iii) film-shaped structural elements (C), and up to 100 parts by weight, based on the total weight of the blend of staple fibres (A) and (B) and structural elements (C), of synthetic fibres comprising a component having a melting point which is lower than those of staple fibres (A) and (B) and structural elements (C) by more than 20°C.
Claim 2
Dependent Claim
208 words
A wadding material characterised in that it comprises a mixture of a blend of 90-10% by weight of staple fibres (A) having a monofilament fineness of 3-10 deniers and a curliness of not less than 15% and 10-90% by weight of staple fibres (B) formed of a synthetic polymer and having a monofilament fineness of 0.7-4 deniers and less than that of the staple fibres (A) and a curliness of less than 15%, together with (i) up to 100 parts by weight, per 100 parts by weight of the blend of staple fibres (A) 'and (B), of synthetic fibres comprising a component having a melting point which is lower than that of those of staple fibres (A) and (B) by more than 20°C; (ii) from 1-50 parts by weight, per hundred parts by weight of the blend of staple fibres (A) and (B) of film-shaped structural elements (C); or (iii) film-shaped structural elements (C), and up to 100 parts by weight, based on the total weight of the blend of staple fibres (A) and (B) and structural elements (C), of synthetic fibres comprising a component having a melting point which is lower than those of staple fibres (A) and (B) and structural elements (C) by more than 20°C.
Claim 3
Dependent Claim
21 words
A wadding material as claimed in claim 1, characterized in that the monofilament fineness of staple fibres (A) is 4-7 deniers.
Claim 4
Dependent Claim
24 words
A wadding material as claimed in claim 1 or claim 2 characterized in that the curliness of staple fibres (A) is more than 18%.
Claim 5
Dependent Claim
25 words
A wadding material as claimed in any one of the preceding claims characterized in that staple fibres (A) have a fibre length of 20-120 mm.
Claim 6
Dependent Claim
26 words
A wadding material as claimed in any one of the preceding claims characterized in that the staple fibres (A) are polyamide, polyester, polyethylene or polypropylene fibres.
Claim 7
Dependent Claim
18 words
A wadding material as claimed in claim 5, characterised in that the staple fibres (A) are polyester fibres.
Claim 8
Dependent Claim
25 words
A wadding material as claimed in any one of the preceding claims characterised in that the monofilament fineness of staple fibres (B) is 1-3 deniers.
Claim 9
Dependent Claim
24 words
A wadding material as claimed in any of the preceding claims characterized in that the curliness of staple fibres (b) is less than 10%
Claim 10
Dependent Claim
25 words
A wadding material as claimed in any one of the preceding claims characterised in that staple fibres (B) have a fibre length of 20-200 mm.
Claim 11
Dependent Claim
26 words
A wadding material as claimed in any one of the the preceding claims characterized in that staple fibres (B) are polyamide, polyester, polyethylene or polypropylene fibres.
Claim 12
Dependent Claim
17 words
A wadding material as claimed in claim 10, characterized in that staple fibres (B) are polyester fibres.
Claim 13
Dependent Claim
33 words
A wadding material as claimed in any one of the preceding claims characterized in that the blend contains 80-20% by weight of staple fibres (A) and 20-80% by weight of staple fibres (B).
Claim 14
Dependent Claim
40 words
A wadding material as claimed in any one of the preceding claims characterized in that the static coefficient of friction between the fibres of at least one of staple fibres (A) and the staple fibres (B) is less than 0.45.
Claim 15
Dependent Claim
24 words
A wadding material as claimed in any one of the preceding claims characterized in that the low melting point synthetic fibres are polyester fibres.
Claim 16
Dependent Claim
74 words
A wadding material as claimed in any one of the preceding claims characterized in that the low melting point synthetic fibres are composite fibres consisting of a lower melting point component and a higher melting point component and said lower melting point component is a polymer having a melting point which is more than 20% lower than any of the higher melting point component, staple fibres (A) and (B) and film-shaped structural elements (C).
Claim 17
Dependent Claim
19 words
A wadding material as claimed in claim 15 characterized in that the lower melting point component is a polyethylene.
Claim 18
Dependent Claim
19 words
A wadding material as claimed in claim 15, characterized in that the lower melting point component is a polyester.
Claim 19
Dependent Claim
46 words
A wadding material as claimed in any one of the preceding claims characterized in that the lower melting point synthetic fibres are present in an amount of 2-50 parts by weight, per 100 parts by weight of the remainder of the components of the wadding material.
Claim 20
Dependent Claim
29 words
A wadding material as claimed in any one of the preceding claims characterized in that the film-shaped structural elements (C) have a developed area of 0.01-20 cm 2 ,
Claim 21
Dependent Claim
24 words
A wadding material as claimed in claim 19, characterized in that the film-shaped.structural elements (C) have a developed area of 0.02-10 cm 2 .
Claim 22
Dependent Claim
33 words
A wadding material as claimed in any one of the preceding claims characterized in that the film-shaped structural elements (C) are thin flake-like pieces composed of a synthetic polymer of a semisynthetic polymer.
Claim 23
Dependent Claim
21 words
A wadding material as claimed in claim 21 characterized in that the film-shaped structural elements (C) are formed of a polyester.
Claim 24
Dependent Claim
47 words
A wadding material as claimed in any one of the preceding claims characterized in that the film-shaped structural elements (C) has a thickness of 5-200 micrometre, a width of 0.01-1 cm, a length of 1-20 cm and a ratio of length to width of more than 10.
Claim 25
Dependent Claim
33 words
A wadding material as claimed in any one of the preceding claims characterized in the the film-shaped structural elements (C) have a reflection coefficient of more than 50% with respect to infrared radiation.
Claim 26
Dependent Claim
22 words
A wadding material as claimed in any one of the preceding claims characterized in that the film-shaped structural elements (C) are metal-coated.
Claim 27
Dependent Claim
55 words
A wadding material as claimed in any one of the preceding claims and containing both structural element (C) and low melting point synthetic fibres characterized in that the film-shaped structural elements are present in an amount of 2-30 parts by weight per 100 parts by weight of the blend of staple fibres (A) and (B).
Claim 28
Dependent Claim
42 words
A wadding material as claimed in any one of the preceding claims characterized in that film-shaped structural elements are present in an amount of 2-30 parts by weight per 100 parts by weight of the blend of staple fibres (A) and (B).
Claim 29
Dependent Claim
58 words
A wadding material as claimed in any one of the preceding claims characterized in that a mixture of a polyurethane and a polyorganosilicon compound, in a weight ratio of 1:1 - 1:0.01, has been applied to the wadding material in an amount of 0.2-20 parts by weight of mixture per 100 parts by weight of the wadding material.
Claim 30
Dependent Claim
23 words
A wadding material as claimed in claim 28, characterized in that the weight ratio of polyurethane to polyorganosilicon compound is 1:0.5 - 1:0.02.
Claim 31
Dependent Claim
43 words
A wadding material as claimed in claim 28 and claim 29 characterized in that the mixture of polyurethane and polyorganosilicon compound is applied to the fibres in an amount of 0.5-15 parts by weight per 100 parts by weight of the fibrous materials.
Claim 32
Dependent Claim
21 words
A wadding material as claimed in any one of the preceding claims characterized'that it is in the form of fibrous masses.
Claim 33
Dependent Claim
48 words
A wadding material as claimed in claim 31, characterized in that the fibrous masses are globular bodies having a diameter of 10-50 mm and a substantially uniform density of less than 0.03 g/cm 3 , in which the fibres forming the fibrous masses are entangled with one another.
Claim 34
Dependent Claim
19 words
A-wadding material as claimed in claim 32, characterized in that the globular bodies have a diameter of 15-40 mm.
Claim 35
Dependent Claim
27 words
A wadding material as claimed in claim 32 or claim 33, characterized in that the globular bodies have a density of less than 0.02 g/cm 3 .
References Cited (Backward Citations)
US4281042A
Cited
EP0048605A1
Cited
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