CN103025183A

CN103025183A - Soft and elastic jacket

Info

Publication number: CN103025183A
Application number: CN2010800646216A
Authority: CN
Inventors: 倪庆美; 刘同娟; 清水敏昭; 刘娟; 村上征成
Original assignee: Toray Fibers and Textiles Research Laboratories China Co Ltd; Toray Industries HK Ltd
Current assignee: Toray Industries HK Ltd
Priority date: 2010-02-22
Filing date: 2010-11-04
Publication date: 2013-04-03
Anticipated expiration: 2030-11-04
Also published as: WO2011100881A1; EP2540175A1; JP2013520576A; EP2540175B1; KR20130121674A; JP6124207B2; US20120311765A1; CA2790676A1; CN103025183B; CA2790676C; CN102160691A; EP2540175A4

Abstract

A soft and elastic jacket is provided. More than 70 percent of body surface of the soft and elastic jacket is elastic weft knitted fabric when the soft and elastic jacket is in a natural and tensionless state without being used. The elastic weft knitted fabric is formed by interweaving 5-15 wt.% of elastic yarns and the remainder of non-elastic yarns, and it has a basis weight of 140-200 grams per square meter. The elastic weft knitted fabric has a stretch index less than 0.8 in 30-80% elongation range, and a recovery stress of 0.3-1.3N in above elongation range. The respiratory coefficient of the soft and elastic jacket is less than 1.05 when a person wearing the soft and elastic jacket is performing the exercise having an intensity less than 7 Mets, an exercise time less than 6 hrs and a body exercise amount less than 25 Metshr. The soft and elastic jacket has a garment pressure less than 0.6 kPa in a state of non-motion, and a garment pressure less than 2.5 kPa in a state of motion.

Description

Soft and elastic coat

Technical Field

The invention relates to a soft and elastic coat.

Background

People pay attention to their health, pay attention to daily diet and daily life, and more people perform various exercises. Accordingly, the requirements of people for sports products such as sports clothes, particularly the performance requirements, are also improved correspondingly, and the soft and elastic coat integrating the wearing comfort and the sports functionality is a new requirement of people.

In the design of sports elastic coats, high elasticity is emphasized in the products on the market at present, or different parts of the sports elastic coats are designed to have different elasticity by splicing and cutting different elastic fabrics. High-elasticity fabrics are used at certain parts to strengthen the binding force to the muscles of the parts, for example, a sports clothes disclosed in patent CN101351129, which utilizes the binding to the scapula and the muscle group around the scapula to improve the sports performance effect exhibited by various sports along with the rotation of the trunk or the movement of the wrist and arm. The binding of different parts can also be achieved by using the bandage theory, for example, in a tight fitting disclosed in patent CN101056551, a first panel is made of elastic fabric and is connected to a second panel of elastic fabric through a seam, the seam corresponds to the muscle ridge, and the binding of the muscle ridge part can improve the exercise capacity and effect by using the bandage theory. The elastic fabrics used in the technologies are all fabrics with high elasticity and high binding force on human bodies. These tights are worn to improve the performance of the sport by professional athletes with developed muscles, while ordinary athletes are not as hard muscles as professional athletes, and are too strongly and tightly bound to the muscles, and are easily tired and uncomfortable by excessively increasing the load of the muscles and even the heart when worn for a long time.

Disclosure of Invention

The invention aims to provide a soft and elastic coat.

The technical solution of the invention is as follows:

an elastic upper garment, wherein 70% or more of the body circumference of the elastic upper garment in a natural non-tensioned state is constituted by an elastic weft knitted fabric having a tension index of 0.8 or less in an extension range of 30 to 80% and a recovery stress of 0.3 to 1.3N in the extension range.

Wherein the tightness index is the tightness degree of the clothes to human body, and is measured by using a telescopic fatigue tester (IT-DRS) of INTEC corporation of Japan according to Japanese industrial specification JISL-1096, the size of the sample is 10cm multiplied by 15cm, and the samples are respectively prepared in the warp direction and the weft direction. The nip distance was 7.6cm, the width was 2.5cm, the specimen was stretched to 110% at a rate of 30cm/min, and finally the stress at 30% elongation and the stress at 80% elongation were read. The calculation method is as follows:

tightness index = ((stress at 80% elongation of elastic weft) in weft)<N₁>Stress at 30% elongation of elastic weft knit<N₂>）/50）× 10 。

The method for measuring the recovery stress is described below. The measurement was carried out using a tensile tester from Aiander, Japan, according to the method for measuring the recovery from elongation and the residual elongation in JIS L-1096, by the following methods: the elastic weft was stretched once until the stress was 20N, and the recovery stress at 80% elongation recovery and the recovery stress at 30% elongation recovery were read. The recovery stress is closely related to the comfort level of the wearer, and the smaller the recovery stress is, the less the compression the wearer feels when wearing the garment, and the more comfortable the wearer feels.

The elastic top garment has a respiratory quotient of 1.05 or less when worn for exercises having an exercise intensity of less than 7Mets, an exercise time of less than 6 hours, and a body exercise amount of 25Mets or less. Wherein, the exercise intensity refers to the degree of physical stimulation to human body, oxygen intake is used for quantitatively expressing that the exercise intensity is one of the methods, and the exercise intensity is 1Mets when 1 kilocalorie of energy is consumed per kilogram of body weight per hour; the body motion amount is a product of a motion intensity and a motion time. Unlike the tights on the market that are directed to professional athletes, the elastic jacket is designed by mainly considering the characteristics of ordinary athletes, and non-professional athletes that have exercise habits in daily life and do appropriate exercises regularly are the main subjects of our research. The proper amount of exercise is defined as 50-1000 Mets.hr per month.

The respiratory quotient is called RQ for short, and refers to the volume ratio or molar ratio of carbon dioxide released and oxygen absorbed by an organism at the same time, namely CO released by respiration₂And absorbed O₂The molecular ratio of (a). Oxidation of sugars, fats, proteins by their respective CO₂Amount of production, O₂The consumption is different, so the respiratory quotient of the three is also different. The respiratory quotient is divided into protein respiratory quotient and non-protein respiratory quotient, and the protein respiratory quotient can be obtained by measuring the urine nitrogen amount in a certain time, then calculating the decomposition amount of the protein in vivo according to the urine nitrogen amount, and obtaining the O when the protein is decomposed₂Consumption and CO₂The amount of production, whereby, based on the measured total consumption O₂Amount and CO₂Production less protein breakdownO₂Consumption and CO₂The amount of production, the nonprotein respiratory quotient, i.e. the sugar and fat respiratory quotient, can be calculated. The fat consumed in exercise is more than sugar, and when the nonprotein respiratory quotient is small, the exercise performed by the sporter is called aerobic exercise, and the exercise is healthy. In fact, the amount of protein used for oxidation is negligible and the measured mixed respiratory quotient can be considered as a non-protein respiratory quotient. That is, the smaller the respiratory quotient we measure, the more aerobic exercise is performed, and the healthier the exercise is performed.

In actual measurement, the oxygen intake and carbon dioxide output of the exerciser were measured using a heart-lung function meter of jeger, germany, and the weight of the exerciser was measured using a japanese メトラー human body precision balance to calculate the exercise intensity and respiratory quotient as follows:

exercise intensity = oxygen intake < ml/min >/(weight of the exerciser < kg > -3.5 < ml/kg. min >)

Respiratory quotient = oxygen intake < ml/min >/carbon dioxide output < ml/min >

The elastic coat is worn with a garment pressure of 0.6kPa or less, a position between the elbow and the wrist of 0.60kPa or less, a position of the chest of 0.33kPa or less, and a position of the back of 0.40kPa or less in a non-activated state; the clothing pressure is 2.5kPa or less, the elbow and wrist middle position is 1.25kPa or less, the chest position is 0.45kPa or less, and the back position is 1.85kPa or less in the exercise state. The clothes pressure was measured using a contact pressure measuring instrument of AMI of japan, and the selected air bag was 20mm in diameter, and three points of the chest, back, and forearm (the middle position of the elbow and the wrist) were measured at the same time. The non-motion state refers to a state that two upright hands of the body naturally droop, and the motion state refers to a state that a certain frequency of motion is performed within a certain time, such as side lifting, front lifting, downward stretching, elbow bending, chest expanding, golf swing, upright push-up, running, bicycle riding and the like.

The elastic weft knitted fabric is formed by interweaving 5-15 wt% of elastic yarns and the balance of non-elastic yarns, and the weft knitted fabric is formed by weft knittingThe weight per unit area of the material is 140 to 200g/m². When the content of the elastic yarns is less than 5%, the tightness index of the elastic weft knitting material within the extension range of 30-80% is larger than 0.8, the recovery stress to the body is larger than 1.3N, or the elastic weft knitting material cannot extend by 30-80% at all. When the elastic yarn content is higher than 15%, the elastic yarn content is too high, the tightness index of the elastic weft knitted fabric within the extension range of 30-80% is larger than 0.8, and the recovery stress to the body is also larger than 1.3N. That is, too little or too much elastic yarn can result in too tight a garment and less movement.

The elastic yarn is polyurethane fiber. The non-elastic yarn is modified polyethylene terephthalate fiber and/or polyamide fiber.

The non-elastic yarn is preferably cationic dyeable polyethylene terephthalate fiber.

The elastic weft knitted fabric in the soft and elastic coat has the advantages that the elastic weft knitted fabric in the soft and elastic coat has proper tightness and can freely stretch or recover along with the skin stretching or recovering generated during the human body movement in the normal movement action range, so that the redundant energy generated by the human body resisting the constraint of the clothes on the human body can be reduced, and the clothes can timely cope with the skin stretching or recovering generated during the human body movement and stretch or recover along with the skin stretching or recovering. When the soft and elastic upper garment made of the elastic weft knitted fabric is worn for sports, compared with the similar products, the body can be relaxed without burden, and aerobic sports beneficial to the human body can be carried out.

Detailed Description

The following examples are further illustrated.

Example 1:

a yarn of cationic dyeable polyethylene terephthalate fibres having a titer of 84dtex and a filament count of 72f was used, with a polyurethane yarn having a titer of 33dtex in a ratio of 88: 12 in a ratio of 175g/m³The weft plain knitted fabric is refined, dyed and shaped to finally prepare the L-size tight suit with the body circumference of 100 percent of the fabric. The maximum tightness index of the weft-knitted fabric is determined to be 0.7 within the extension range of 30-80%, andwithin this range the maximum recovery stress of the weft is 1.2N. A male subject with a height of 173cm and a weight of 72kg and a motion amount of 120 mets.hr per month wears a golf swing with a frequency of 30 times/minute, and takes a 1-minute rest mode for 5 minutes in total, and the maximum respiratory quotient during the exercise is 0.86 as measured by a heart-lung function instrument of Jeger, Germany. The maximum clothes pressure at the middle position between the elbow and the wrist in the non-motion state, the chest position and the back position of the elastic jacket were 0.33kPa and 0.39kPa, and the maximum clothes pressure at the middle position between the elbow and the wrist in the motion state, the chest position and the back position were 0.27kPa and 0.88kPa, respectively, as measured by a contact pressure measuring instrument of the Japan AMI company. The dyeing fastness of the fabric dyed with the cationic dye is measured to be above grade 4 according to Japanese JIS standard.

Example 2:

a core-sheath conjugate textured yarn using a polyamide fiber having a fineness of 110dtex and a filament number of 51f was combined with a polyurethane yarn having a fineness of 33dtex in a ratio of 90: 10 to a grammage of 180g/m³The weft plain knitted fabric is refined, dyed and shaped to finally prepare the L-size tight suit with the body circumference of 100 percent of the fabric. The maximum tightness index of the weft knitting material in the range of 30-80% elongation is measured to be 0.7, and the maximum recovery stress of the weft knitting material in the range is measured to be 1.1N. A male subject with a height of 173cm, a weight of 75kg and a movement amount of 86 mets.hr per month was run for 20 minutes at 8km/hr and the maximum respiratory quotient of the male subject during the running was 1.02 as measured by a cardio-pulmonary function apparatus of Jeger, Germany. The maximum clothes pressure at the middle position between the elbow and the wrist in the non-motion state, the chest position and the back position of the elastic jacket were 0.31kPa and 0.36kPa, and the maximum clothes pressure at the middle position between the elbow and the wrist in the motion state, the chest position and the back position were 0.32kPa and 1.51kPa, respectively, as measured by a contact pressure measuring instrument of the Japan AMI company. The dyeing fastness of the fabric dyed with the cationic dye is measured to be above grade 4 according to Japanese JIS standard.

Example 3:

the core of the filament with the fineness of 140dtex and the number of 70f is used as the core sheath of the polyethylene terephthalate fiber and the polyamide fiberComposite textured yarn, with polyurethane yarn having a fineness of 33dtex in a ratio of 92: 8 is prepared into a gram weight of 180g/m³The weft plain knitted fabric is finally made into the L-size tight-fitting garment with the body circumference of 80 percent of the fabric through the processes of refining, dyeing and shaping. The maximum tightness index of the weft knitting material in the range of 30-80% elongation is measured to be 0.8, and the maximum recovery stress of the weft knitting material in the range is measured to be 1.3N. A female subject with the height of 168cm and the weight of 60kg and the motion amount of 460 Mets-hr per month wears the female subject to carry out the upright push-up motion with the frequency of 30 times/minute, and the motion mode is as follows: exercise for 1 minute, rest for 1 minute, exercise for 2 minutes, rest for 1 minute, exercise for 3 minutes, rest for 1 minute, exercise for 4 minutes, and rest for 1 minute, and total exercise for 10 minutes, and the maximum respiratory quotient during exercise was 1.02 as measured by a heart-lung function apparatus of jeger, germany. The maximum clothes pressure at the middle position between the elbow and the wrist in the non-motion state, the chest position and the back position of the elastic jacket were 0.33kPa and 0.39kPa, and the maximum clothes pressure at the middle position between the elbow and the wrist in the motion state, the chest position and the back position were 0.43kPa and 1.68kPa, respectively, as measured by a contact pressure measuring instrument of the Japan AMI company. The dyeing fastness of the fabric dyed with the cationic dye is measured to be above grade 4 according to Japanese JIS standard.

Claims

1. A soft and elastic coat is characterized in that: more than 70% of the body circumference of the elastic jacket is composed of elastic weft knitting materials when the elastic jacket is not worn in a natural tension-free state; the elastic weft knitted fabric has a tension index of 0.8 or less in an elongation range of 30 to 80% and a recovery stress of 0.3 to 1.3N in the elongation range.

2. A soft and elastic coat according to claim 1, wherein: when the user wears the elastic jacket and exercises with the exercise intensity of less than 7Mets, the exercise time of less than 6 hours and the body exercise amount of less than 25Mets. hr, the respiratory quotient is less than 1.05.

3. A soft and elastic coat according to claim 1, wherein: the elastic coat has a garment pressure of 0.6kPa or less in a non-operating state and a garment pressure of 2.5kPa or less in a running state.

4. A soft and elastic coat according to claim 3, wherein: the clothing pressure in the non-operating state at the intermediate position between the elbow and the wrist is 0.60kPa or less, the clothing pressure in the non-operating state at the chest position is 0.33kPa or less, and the clothing pressure in the non-operating state at the back position is 0.40kPa or less.

5. A soft and elastic coat according to claim 3, wherein: the clothing pressure is 1.25kPa or less in the exercise state at the middle position between the elbow and the wrist, 0.45kPa or less in the exercise state at the chest position, and 1.85kPa or less in the exercise state at the back position.

6. A soft and elastic coat according to claim 1, wherein: the elastic weft knitting material is formed by interweaving 5-15% of elastic yarns and the balance of non-elastic yarns, and the unit area weight of the weft knitting material is 140-200 g/m²。

7. A soft and elastic coat according to claim 6, wherein: the elastic yarn is polyurethane fiber.

8. A soft and elastic coat according to claim 6 or 7, wherein: the non-elastic yarn is modified polyethylene terephthalate fiber and/or polyamide fiber.

9. A soft and elastic coat according to claim 8, wherein: the non-elastic yarn is cation dyeable polyethylene terephthalate fiber.