← Back to Patent Explorer
US4729913A Expired / Lapsed US ⏱️ 0.0 years remaining

Chinchilla-like artificial fur

Assignee: Kanebo Ltd
•
Filing: 1986-10-03
•
Granted: 1988-03-08
•
Expires: 2006-10-03
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An artificial fur having chinchilla-like appearance and hand, which consists of a substrate fabric and piles provided on at least one surface thereof, which piles comprise underhairs of 0.5 to less than 4.0 deniers, having an average length of 10˜35 mm, a hair density of 8,000˜30,000 hairs/cm 2 , a crimp ratio of at most 20%, a frictional coefficient in the right direction of 1.6 or less and a frictional coefficient ratio of the adverse direction to the right direction of 1.0˜1.4. The piles preferably further comprise guard hairs of 4˜50 deniers, equal to or a little longer than underhairs, having a hair density of 3,000 hairs/cm 2 or less. The piles preferably have color variations lengthwise.

Inventors

  • 👤 Masao Matsui
  • 👤 Kazuo Okamoto
  • 👤 Tsutomu Naruse
  • 👤 Taro Murata

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 09:04
CPC Classifications
A; A41; A41H; A41H41/00; A41H41/005; D; D10; D10B; D10B2501/00; D10B2501/04; D10B2501/044; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23957; Y10T428/24; Y10T428/24942; Y10T428/24992

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 150 words
A chinchilla-like artificial fur comprising a substrate fabric and pile fibers secured to at least one side of said fabric and projecting therefrom, in which (a) said pile fibers comprise underhairs having a fineness in the range of from 0.5 to less than 4.0 deniers, an average length in the range of from 10 to 35 mm, a hair density in the range of from 8,000 to 30,000 hairs/cm 2 and a crimp ratio of 20% or less, (b) said pile fibers have a minimum frictional coefficient (M 1 ) of 1.6 or less and (M 1 ) is measured in a first direction in which said pile fibers are inclined, and (c) the ratio (M 2 /M 1 ) is the range of from 1.0 to 1.4, wherein M 2 is the frictional coefficient in a second direction which lies at an angle of 180° to said first direction.
Claim 2
Dependent Claim 150 words
A chinchilla-like artificial fur comprising a substrate fabric and pile fibers secured to at least one side of said fabric and projecting therefrom, in which (a) said pile fibers comprise underhairs having a fineness in the range of from 0.5 to less than 4.0 deniers, an average length in the range of from 10 to 35 mm, a hair density in the range of from 8,000 to 30,000 hairs/cm 2 and a crimp ratio of 20% or less, (b) said pile fibers have a minimum frictional coefficient (M 1 ) of 1.6 or less and (M 1 ) is measured in a first direction in which said pile fibers are inclined, and (c) the ratio (M 2 /M 1 ) is the range of from 1.0 to 1.4, wherein M 2 is the frictional coefficient in a second direction which lies at an angle of 180° to said first direction.
Claim 3
Dependent Claim 29 words
An artificial fur as claimed in claim 1, wherein said pile fibers comprise polyester fibers containing a lubricating agent or having a resinous lubricating membrane on the surfaces thereof.
Claim 4
Dependent Claim 59 words
An artificial fur as claimed in claim 1, wherein 70% or more of the number of said underhairs in any square region measuring 1 cm wide and 1 cm long of said substrate fabric have a length of ±30% of the average length of said pile fibers, over at least 60% of the surface area of said substrate fabric.
Claim 5
Dependent Claim 37 words
An artificial fur as claimed in claim 1, wherein the frictional coefficient in said first direction is 1.4 or less and said ratio (M 2 /M 1 ) is in the range of from 1 to 1.2.
Claim 6
Dependent Claim 36 words
An artificial fur as claimed in claim 1, wherein the portions of said pile fibers remote from said substrate fabric are different in color from the portions of said pile fibers adjacent to said substrate fabric.
Claim 7
Dependent Claim 24 words
An artificial fur as claimed in claim 1, wherein said pile fibers each have an attenuated outer end portion remote from said substrate fabric.
Claim 8
Dependent Claim 43 words
An artificial fur as claimed in claim 1, wherein said substrate fabric comprises a yarn consisting of individual filaments of 1.5 deniers or less and said substrate fabric has a stiffness both in the warp and weft directions of 60 mm or less.
Claim 9
Dependent Claim 38 words
An artificial fur as claimed in claim 1, wherein said pile fibers further comprise guard hairs having a fineness in the range of from 4 to 50 deniers and a hair density of 3,000 hairs/cm 2 or less.
Claim 10
Dependent Claim 32 words
An artificial fur as claimed in claim 8, wherein the difference in the average lengths of said guard hairs and said underhairs is in the range of from 0 to 7 mm.
Claim 11
Dependent Claim 45 words
An artificial fur as claimed in claim 8, wherein the weight ratio of said guard hairs to said pile fibers Rg (weight %) and the fineness of individual guard hairs Dg (denier) satisfy the following inequalities (I) and (II) ##EQU3## 4≦Dg≦40 . . . (II).
Claim 12
Dependent Claim 36 words
An artificial fur as claimed in claim 8, wherein the weight per unit area of parts of said guard hairs exposed above said underhairs is in the range of from 0 to 20 mg/cm 2 .
Claim 13
Dependent Claim 22 words
An artificial fur as claimed in claim 11, wherein said weight per unit area is between 0.2 and 10 mg/cm 2 .
Claim 14
Dependent Claim 384 words
An chinchilla-like artificial fur, comprising: a substrate fabric weighing from 50 to 150 g/square meter, made of yarn consisting essentially of filaments of 1.5 deniers or less and having a stiffness in both the warp and weft directions of 40 mm or less; a multiplicity of pile fibers projecting upwardly from the surface of said substrate fabric, said pile fibers consisting essentially of (1) a multitude of underhairs having a fineness of from 0.9 to 2.5 deniers, an average length of from 15 to 25 mm, a hair density of from 12,000 to 20,000 hairs/cm 2 and a crimp ratio of from 0.5 to 5%, at least 70% of the number of said underhairs having lengths within ±30% of the average length of all of said underhairs, and (2) a multitude of guard hairs which are thicker and longer than said underhairs, said guard hairs having a fineness of from 8 to 20 denier and a hair density of from 50 to 1,000 hairs/cm 2 , the weight ratio of guard hairs to the total of said pile fibers and the fineness of said guard hairs lying on or within the closed quadrilateral area defined by lines connecting the points P, Q, R and S in alphabetical order, wherein the points P, Q, R and S are defined on an XY rectangular coordinate system by the following values ______________________________________ X Axis Fineness of Y Axis Guard Point Single Guard Hair Hair Ratio ______________________________________ P 20 8 Q 20 20 R 8 23 S 8 9, ______________________________________ the average length of said guard hairs being from 1 to 6 mm longer than the average length of said underhairs, the weight, per unit area of said substrate, of the parts of said guard hairs that extend above said underhairs being from 0.2 to 10 mg/cm 2 , said guard hairs being free from crimps, said pile fibers exhibiting a low anisotropy, said pile fibers having a minimum friction coefficient (M 1 ) of 1.2 or less measured in a first direction in which said pile fibers are inclined and having a second friction coefficient (M 2 ) measured in a second direction which extends at an angle of 180° to said first direction, and the ratio of M 2 /M 1 is from 1/1 to 1.2/1.
Claim 15
Dependent Claim 384 words
An chinchilla-like artificial fur, comprising: a substrate fabric weighing from 50 to 150 g/square meter, made of yarn consisting essentially of filaments of 1.5 deniers or less and having a stiffness in both the warp and weft directions of 40 mm or less; a multiplicity of pile fibers projecting upwardly from the surface of said substrate fabric, said pile fibers consisting essentially of (1) a multitude of underhairs having a fineness of from 0.9 to 2.5 deniers, an average length of from 15 to 25 mm, a hair density of from 12,000 to 20,000 hairs/cm 2 and a crimp ratio of from 0.5 to 5%, at least 70% of the number of said underhairs having lengths within ±30% of the average length of all of said underhairs, and (2) a multitude of guard hairs which are thicker and longer than said underhairs, said guard hairs having a fineness of from 8 to 20 denier and a hair density of from 50 to 1,000 hairs/cm 2 , the weight ratio of guard hairs to the total of said pile fibers and the fineness of said guard hairs lying on or within the closed quadrilateral area defined by lines connecting the points P, Q, R and S in alphabetical order, wherein the points P, Q, R and S are defined on an XY rectangular coordinate system by the following values ______________________________________ X Axis Fineness of Y Axis Guard Point Single Guard Hair Hair Ratio ______________________________________ P 20 8 Q 20 20 R 8 23 S 8 9, ______________________________________ the average length of said guard hairs being from 1 to 6 mm longer than the average length of said underhairs, the weight, per unit area of said substrate, of the parts of said guard hairs that extend above said underhairs being from 0.2 to 10 mg/cm 2 , said guard hairs being free from crimps, said pile fibers exhibiting a low anisotropy, said pile fibers having a minimum friction coefficient (M 1 ) of 1.2 or less measured in a first direction in which said pile fibers are inclined and having a second friction coefficient (M 2 ) measured in a second direction which extends at an angle of 180° to said first direction, and the ratio of M 2 /M 1 is from 1/1 to 1.2/1.
Claim 16
Dependent Claim 41 words
A chinchilla-like artificial fur as claimed in claim 13 in which the outer end portions of said underhairs are of reduced diameter, said outer end portions having a length of from 0.5 to 3 mm and being remote from said substrate.

References Cited (Backward Citations)

US3960478A Cited
US4241122A Cited
US4390572A Cited
US4461791A Cited
US4434631A Cited
US4557972A Cited
US4604320A Cited
US4459128A Cited
US4525404A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-03-08 1991-09-07 1992-03-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-03-08 1995-09-07 1996-03-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-03-08 1999-09-07 2000-03-08 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag