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US 12,655,551 B2Granted
Interlock knit textiles and methods of making and using same
AssigneeLululemon Athletica Canada Inc.
InventorsRovin Manna, Yogendra V. Dandapure, Mingjun Cheng
Life of this patent
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Abstract
Interlock knit textiles and methods of forming and using interlock knit textiles are described. Three structural properties have been found to contribute to improved stretch properties in interlock knits. The three structural properties include the use of a unique knitted loop shape, the use of fine filament yarns, and the use of elasticated yarns having lower hysteresis than conventional elastane. The described interlock knit textiles can include one, two or all three of these structural properties. The improved stretch properties can include values for percent elongation or modulus in the length direction which are close to or the same as their values in the width direction.
Claims20
An interlock knit textile comprising:
- a first yarn and a second yarn knit together in an interlock knit structure, wherein the first yarn is a multifilament non-elasticated yarn, the second yarn is an elasticated yarn, and the interlock knit textile includes at least one structural property chosen from
- a) a plurality of knitted loops in the interlock knit structure have an average loop distance ratio of less than 0.85,
- b) the first yarn comprises or consists of filaments having an average denier per filament (dpf) of 0.8 or less, and
- c) the second yarn comprises or consists of an elastomeric material having a lower hysteresis than conventional elastane;
- wherein the interlock knit textile has a course direction parallel with the knit courses in the interlock knit structure, has a wale direction parallel with wales in the interlock knit textile, and has a stretch property comprising at least one of
- d) wherein the interlock knit textile has a length direction average percent elongation, a width direction average percent elongation, and an absolute value of a difference between the length direction average percent elongation and the width direction average percent elongation is less than 70 percentage points;
- e) wherein the interlock knit textile has a length direction average modulus at 50% strain, a width direction average modulus at 50% strain, and an absolute value of a difference between the length direction average modulus at 50% strain and the width direction average modulus at 50% strain is less than 70 grams force (gf);
- and
- f) wherein the interlock textile has a length direction average modulus at 80% strain, a width direction average modulus at 80% strain, and an absolute value of a difference between the length direction average modulus at 80% strain and the width direction average modulus at 80% strain is less than 70 gf.
6 more elements
An interlock knit textile comprising:
- a first non-elasticated yarn and a second elasticated yarn knit together in an interlock knit structure, wherein the first yarn is a non-elasticated multifilament yarn, the second yarn is an elasticated yarn, and interlock knit textile includes at least two structural properties chosen from
- a) a plurality of knitted loops in the interlock knit structure have an average loop distance ratio of less than 0.85,
- b) the first yarn comprises or consists of filaments having an average denier per filament (dpf) of 0.6 or less, and
- c) the second yarn comprises or consists of an elastomeric material having a lower hysteresis than conventional elastane;
- wherein the interlock knit textile has a length direction parallel with the knit courses in the interlock knit structure, has a width direction parallel with wales in the interlock knit textile, and has at least textile stretch property chosen from
- d) the interlock knit textile has a length direction average percent elongation, a width direction average percent elongation, and an absolute value of a difference between the length direction average percent elongation and the width direction average percent elongation is less than 70 percentage points;
- e) the interlock knit textile has a length direction average modulus at 50% strain, a width direction average modulus at 50% strain, and an absolute value of a difference between the length direction average modulus at 50% strain and the width direction average modulus at 50% strain is less than 70 grams force (gf);
- and
- f) the interlock textile has a length direction average modulus at 80% strain, a width direction average modulus at 80% strain, and an absolute value of a difference between the length direction average modulus at 80% strain and the width direction average modulus at 80% strain is less than 70 gf.
6 more elements
An interlock knit textile comprising:
- a first yarn and a second yarn knit together in an interlock knit structure, wherein the first yarn is a non-elasticated multifilament yarn consisting of filaments having a denier per filament (dpf) of 0.5 or less, and the second yarn is a single-end bare elasticated yarn;
- wherein the interlock knit textile has a length direction parallel with the knit courses in the interlock knit structure, has a width direction parallel with wales in the interlock knit textile, and has at least one textile stretch property chosen from
- d) the interlock knit textile has a length direction average percent elongation, a width direction average percent elongation, and an absolute value of a difference between the length direction average percent elongation and the width direction average percent elongation is less than 70 percentage points;
- e) the interlock knit textile has a length direction average modulus at 50% strain, a width direction average modulus at 50% strain, and an absolute value of a difference between the length direction average modulus at 50% strain and the width direction average modulus at 50% strain is less than 70 grams force (gf);
- and
- f) the interlock textile has a length direction average modulus at 80% strain, a width direction average modulus at 80% strain, and an absolute value of a difference between the length direction average modulus at 80% strain and the width direction average modulus at 80% strain is less than 70 gf.
3 more elements
Dependencies are inferred from the claim text.