CN110596181B - Down jacket thermal insulation performance detection acceptance method - Google Patents
Down jacket thermal insulation performance detection acceptance method Download PDFInfo
- Publication number
- CN110596181B CN110596181B CN201910915687.4A CN201910915687A CN110596181B CN 110596181 B CN110596181 B CN 110596181B CN 201910915687 A CN201910915687 A CN 201910915687A CN 110596181 B CN110596181 B CN 110596181B
- Authority
- CN
- China
- Prior art keywords
- model
- temperature
- value
- down jacket
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
Abstract
The invention discloses a method for detecting and accepting the heat retention performance of a down jacket, which comprises the following steps: preparing a test model, wherein the model is in a hollow human body shape, water is filled in the model, and the initial value of the water temperature is the normal human body temperature; wearing the down jacket to be detected outside the model, placing the model in a low-temperature environment, acquiring a temperature value of water in the model in real time, heating the water when the temperature value is lower than an initial value, and controlling the water temperature to be maintained at the initial value; and recording the total heat value generated by heating within a fixed time, and determining the heat preservation performance of the down jacket according to the total heat value. The method can specifically determine the warmth retention grade of the down jacket, and compared with the traditional detection mode, the detection result is more visual and clear in presentation; the method can simulate the real environment of a human body when wearing the down jacket, can also avoid the influence of the body surface temperature and the metabolism process of the human body on the detection, and greatly improves the accuracy and the reliability; in addition, the method also has the advantages of simple and convenient operation, low detection cost and the like.
Description
Technical Field
The invention relates to the technical field of clothing detection, in particular to a method for detecting and accepting the heat retention performance of a down jacket.
Background
With the development of the clothing industry, down coats produced by various large clothing factories gradually show the trend of lightness, thinness and diversified styles, and are popular with many young consumers. However, the most basic thermal properties of down jackets are not considered enough, so that many down jackets cannot really keep warm. Therefore, the detection and acceptance of the warm-keeping performance of the down jacket during production are very necessary. The traditional detection mode of the thermal insulation performance of the down jacket is that the thermal insulation effect is directly evaluated subjectively by wearing, which is obviously inaccurate and cannot obtain a specific thermal insulation coefficient.
It is known that in a low temperature environment, if a person does not take effective warm-keeping measures, the body surface temperature is reduced, and at the moment, the body needs to consume a certain amount of energy to generate heat, so as to maintain the constant temperature of the body surface. Therefore, in the same low-temperature environment, after the down jacket is worn, the heat retention performance is related to the heat production of the body, namely the better the heat retention performance is, the less the heat production is, the poorer the heat retention performance is, and the more the heat production is. Therefore, the warm-keeping performance of the down jacket can be detected by using the rule.
Disclosure of Invention
The invention aims to provide a method for detecting and accepting the thermal insulation performance of a down jacket, which can accurately detect the thermal insulation performance of the down jacket.
The invention realizes the purpose through the following technical scheme:
a method for detecting and accepting the warm-keeping performance of a down jacket comprises the following steps
Preparing a test model, wherein the model is in a hollow human body shape, water is filled in the model, and the initial value of the water temperature is the normal human body temperature;
step two, testing, namely wearing the down jacket to be detected outside the model, placing the model in a low-temperature environment, acquiring the temperature value of water in the model in real time, heating the water when the temperature value is lower than the initial value, and stopping heating when the temperature value reaches the initial value again so as to control the water temperature to be maintained at the initial value;
and step three, recording the total heat value generated by heating within a fixed time, and determining the heat preservation performance of the down jacket according to the total heat value.
The further improvement is that the initial value of the water temperature is 36-37 ℃, and the body surface temperature of a normal person is simulated.
The further improvement is that in the test process, water is stirred at a constant speed, the stirring speed is 60-80 r/min, the uniformity of the water temperature in the model is ensured to the maximum extent, and the accuracy is improved.
In a further improvement, the gap between the outer surface of the model and the inner surface of the down jacket is uniformly sprayed during the test processThe area spray rate is 10-12 g/hm2The device is used for simulating the sweat amount discharged by the metabolism of a human body under the normal activity level. Because the exhaust sweat can possibly influence the warmth retention property of some down coats, the influence of metabolism on detection can be avoided in the mode, and the reliability of the detection result is improved.
The further improvement is that the temperature value of the low-temperature environment is-10-5 ℃, and the low-temperature environment is used for simulating the temperature environment in the down jacket wearing season.
The further improvement is that in the third step, the total heat value generated by heating within 30 min-5 h is recorded, and the total heat value is the product of the total heating time and the heat value generated by heating within unit time.
The further improvement is that in the third step, the total heat value is divided into a plurality of heat levels, each heat level corresponds to a heat preservation level of the heat preservation performance, and the heat preservation level of the down jacket is determined according to the actually recorded heat level to which the total heat value belongs.
The invention has the beneficial effects that: the method can specifically determine the warmth retention grade of the down jacket, and compared with the traditional detection mode, the detection result is more visual and clear in presentation; the method can simulate the real environment of a human body when wearing the down jacket, can also avoid the influence of the body surface temperature and the metabolism process of the human body on the detection, and greatly improves the accuracy and the reliability; in addition, the method also has the advantages of simple and convenient operation, low detection cost and the like.
Drawings
Fig. 1 is a schematic diagram of a model used in the checking and acceptance of the thermal insulation performance of the down jacket.
Detailed Description
The present application is described in further detail below with reference to examples, and it should be noted that the following detailed description is provided for further explanation of the present application and should not be construed as limiting the scope of the present application, and that certain insubstantial modifications and adaptations of the present application may be made by those skilled in the art based on the above-mentioned disclosure.
Example 1
A method for detecting and accepting the warm-keeping performance of a down jacket comprises the following steps
Preparing a test model, wherein the model is in a hollow human body shape, water is filled in the model, the initial value of the water temperature is 36 ℃, and the model belongs to the normal human body temperature range;
step two, testing, namely wearing the down jacket to be detected outside the model, placing the model in a low-temperature environment of-10 ℃, obtaining the temperature value of water in the model in real time, heating the water when the temperature value is lower than the initial value, and stopping heating when the temperature value reaches the initial value again so as to control the water temperature to be maintained at the initial value; in the test process, water is continuously stirred at a constant speed, the stirring speed is 60r/min, and the uniform spraying is carried out in the gap between the outer surface of the model and the inner surface of the down jacket, wherein the spraying speed per unit area is 10g/hm2。
And thirdly, recording the total heat value generated by heating within 30min, wherein the total heat value is the product of the total heating time and the heat value generated by heating within unit time, dividing the total heat value into four heat grades, wherein each heat grade corresponds to a heat preservation grade of heat preservation performance, and determining the heat preservation grade of the down jacket according to the actually recorded heat grade of the total heat value.
Example 2
A method for detecting and accepting the warm-keeping performance of a down jacket comprises the following steps
Preparing a test model, wherein the model is in a hollow human body shape, water is filled in the model, the initial value of the water temperature is 36.5 ℃, and the model belongs to the normal human body temperature range;
step two, testing, namely wearing the down jacket to be detected outside the model, placing the model in a low-temperature environment at minus 5 ℃, obtaining the temperature value of water in the model in real time, heating the water when the temperature value is lower than the initial value, and stopping heating when the temperature value reaches the initial value again so as to control the water temperature to be maintained at the initial value; in the test process, water is continuously stirred at a constant speed, the stirring speed is 70r/min, and the uniform spraying is carried out in the gap between the outer surface of the model and the inner surface of the down jacket, wherein the spraying speed per unit area is 11g/hm2。
And thirdly, recording the total heat value generated by heating within 3h, wherein the total heat value is the product of the total heating time and the heat value generated by heating within unit time, dividing the total heat value into five heat grades, wherein each heat grade corresponds to a heat preservation grade of heat preservation performance, and determining the heat preservation grade of the down jacket according to the actually recorded heat grade of the total heat value.
Example 3
A method for detecting and accepting the warm-keeping performance of a down jacket comprises the following steps
Preparing a test model, wherein the model is in a hollow human body shape, water is filled in the model, the initial value of the water temperature is 37 ℃, and the water temperature belongs to the range of normal human body temperature;
step two, testing, namely wearing the down jacket to be detected outside the model, placing the model in a low-temperature environment at 5 ℃, obtaining the temperature value of water in the model in real time, heating the water when the temperature value is lower than the initial value, and stopping heating when the temperature value reaches the initial value again so as to control the water temperature to be maintained at the initial value; in the test process, water is continuously stirred at a constant speed, the stirring speed is 80r/min, the uniform spraying is carried out in the gap between the outer surface of the model and the inner surface of the down jacket, and the spraying speed per unit area is 12g/hm2。
And thirdly, recording the total heat value generated by heating within 5h, wherein the total heat value is the product of the total heating time and the heat value generated by heating within unit time, dividing the total heat value into six heat grades, wherein each heat grade corresponds to a heat preservation grade of heat preservation performance, and determining the heat preservation grade of the down jacket according to the actually recorded heat grade of the total heat value.
In order to smoothly carry out the three embodiments, the invention also provides a specially-made model, as shown in fig. 1, the model is made of plastic materials, is of a hollow humanoid structure, has the wall thickness of about 0.5cm, is provided with a water injection port 1 above, is internally provided with an electric heating device 2, a stirring device 3 and a temperature measuring couple 4, and is sealed after being filled with water; the outer surface of the model is further provided with a plurality of ultrasonic atomizers 5, and the ultrasonic atomizers 5 are connected with a water source and used for spraying small water drops with the diameter of 2-4 microns to simulate the sweating process. In addition, a controller 6 is also required to be arranged, the controller 6 acquires the real-time temperature value of the temperature measuring couple 4, controls the electric heating device 2 to be opened or closed according to the change condition of the temperature value, and can count the total opening time of the electric heating device 2 for calculating the total heat value.
In order to verify the feasibility of the invention, 5 down coats of different brands were selected, 4 down coats of the same style were selected for each brand, and the 20 down coats were tested for warmth retention property using the method of example 2. Wherein, five heat grades are I grade (below 850kJ), II grade (between 850 and 1100 kJ), III grade (between 1100 and 1350 kJ), IV grade (between 1350 and 1600kJ), V grade (above 1600kJ), respectively correspond to five warmth retention grades of excellent, good, general, poor and extremely poor, and the detection result statistics obtains the following table:
it can be seen from the above table that the warm-keeping grades of the down jackets of different brands are different, if the specified warm-keeping grade reaches the general standard, the down jackets can enter the market, the brand C does not reach the standard, and other brands pass the acceptance check. In addition, the detection results of most brands of down jackets are the same, only the brand B has two warm-keeping grades, but the total heat value generated by the brand B is near the critical point of grade division, but the total heat value is very close, and if the heat grade is subdivided, the same warm-keeping grade can be obtained. For some detection results, very accurate detection and acceptance work is required, the total heat value can be directly used as a result, the detection result is very accurate and reliable, and the detection error is very small.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (5)
1. A method for detecting and accepting the thermal insulation performance of down jackets is characterized by comprising the following steps: comprises the steps of
Preparing a test model, wherein the model is in a hollow human body shape, water is filled in the model, and the initial value of the water temperature is the normal human body temperature;
step two, testing, namely wearing the down jacket to be tested outside the model, placing the model in a low-temperature environment, stirring water at a constant speed in the testing process, wherein the stirring speed is 60-80 r/min, uniformly spraying water in a gap between the outer surface of the model and the inner surface of the down jacket, and the spraying speed per unit area is 10-12 g/hm2Acquiring the temperature value of water in the model in real time, heating the water when the temperature value is lower than an initial value, and stopping heating when the temperature value reaches the initial value again so as to control the water temperature to be maintained at the initial value;
and step three, recording the total heat value generated by heating within a fixed time, and determining the heat preservation performance of the down jacket according to the total heat value.
2. The method for detecting and accepting the thermal insulation performance of the down jacket according to claim 1, wherein the method comprises the following steps: the initial value of the water temperature is 36-37 ℃.
3. The method for detecting and accepting the thermal insulation performance of the down jacket according to claim 1, wherein the method comprises the following steps: the temperature value of the low-temperature environment is-10-5 ℃.
4. The method for detecting and accepting the thermal insulation performance of the down jacket according to claim 1, wherein the method comprises the following steps: and in the third step, recording the total heat value generated by heating within 30 min-5 h, wherein the total heat value is the product of the total heating time and the heat value generated by heating within unit time.
5. The method for detecting and accepting the thermal insulation performance of the down jacket according to claim 1, wherein the method comprises the following steps: in the third step, the total heat value is divided into a plurality of heat levels, each heat level corresponds to a heat preservation level of the heat preservation performance, and the heat preservation level of the down jacket is determined according to the actually recorded heat level to which the total heat value belongs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910915687.4A CN110596181B (en) | 2019-09-26 | 2019-09-26 | Down jacket thermal insulation performance detection acceptance method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910915687.4A CN110596181B (en) | 2019-09-26 | 2019-09-26 | Down jacket thermal insulation performance detection acceptance method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110596181A CN110596181A (en) | 2019-12-20 |
| CN110596181B true CN110596181B (en) | 2022-04-05 |
Family
ID=68863574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910915687.4A Active CN110596181B (en) | 2019-09-26 | 2019-09-26 | Down jacket thermal insulation performance detection acceptance method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110596181B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112069458B (en) * | 2020-08-28 | 2024-04-09 | 宁波大千纺织品有限公司 | Matrix algorithm for estimating warmth retention property of mesh flannelette |
| CN114295672A (en) * | 2021-12-28 | 2022-04-08 | 高梵(浙江)信息技术有限公司 | Thermal insulation performance detection device of down jacket |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2534050A1 (en) * | 1982-10-05 | 1984-04-06 | Meca Appliquees Lab | Elements of a heating dummy for thermal evaluation, especially for studying the thermal properties of a garment and the thermal consequences due to wearing a breathing system |
| US5058388A (en) * | 1989-08-30 | 1991-10-22 | Allan Shaw | Method and means of air conditioning |
| CN1959393A (en) * | 2006-11-20 | 2007-05-09 | 宁波纺织仪器厂 | Method for testing insulating property of textile |
| CN102507641A (en) * | 2011-10-24 | 2012-06-20 | 东华大学 | Self-adapting testing instrument for heat-moisture comfort performance of fabric and coupled testing method using same |
| CN202496420U (en) * | 2011-11-29 | 2012-10-24 | 浙江报喜鸟服饰股份有限公司 | Coat with adjustable thermal insulation performance |
| CN102980909A (en) * | 2011-12-13 | 2013-03-20 | 南通大学 | Device for testing heat insulating property of fabrics |
| CN105203587A (en) * | 2015-08-26 | 2015-12-30 | 上海艾莱依实业发展有限公司 | Method and equipment for testing heat retention property of down garment |
| CN206137278U (en) * | 2016-10-28 | 2017-05-03 | 安徽瓦尔特机械贸易有限公司 | Refrigeration heat preservation sportswear that is used for outdoor exercises specially |
| CN206836269U (en) * | 2017-06-08 | 2018-01-05 | 安徽高梵电子商务有限公司 | A kind of freeze down jackets |
| CN206848198U (en) * | 2016-08-11 | 2018-01-05 | 中国标准化研究院 | A kind of indoor thermal environment Comfort Evaluation thermal manikin with temperature measuring equipment |
| CN109507231A (en) * | 2018-12-28 | 2019-03-22 | 武汉纺织大学 | A kind of fabric heat-insulation ability meter under motion state |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2309477C (en) * | 2000-05-26 | 2008-11-04 | Kazimierz Szymocha | Heated clothing for use in cold weather and cold climate regions |
| JP2013530316A (en) * | 2010-05-12 | 2013-07-25 | パブロス，クリストファー，エム． | Improved feather manufacturing method and improved feather |
| CN202794080U (en) * | 2012-06-18 | 2013-03-13 | 上海洋帆实业有限公司 | Measurement system for clothes insulation value |
| CN104677932B (en) * | 2015-02-05 | 2017-05-10 | 浙江出入境检验检疫局检验检疫技术中心 | Thermoregulated textile comparison tester and thermoregulation effect detection method |
| WO2017143222A1 (en) * | 2016-02-17 | 2017-08-24 | The Board Of Trustees Of The Leland Stanford Junior University | Infrared-transparent porous polymer textile for human body cooling and heating |
| WO2018094389A2 (en) * | 2016-11-21 | 2018-05-24 | Massachusetts Institute Of Technology | Ultra-low thermal conductivity diving suit material for enhanced persistence in cold water dives |
| CN206836260U (en) * | 2017-06-08 | 2018-01-05 | 安徽高梵电子商务有限公司 | A kind of night flash type down jackets |
| CN108982580A (en) * | 2018-05-23 | 2018-12-11 | 苏州韵之秋智能科技有限公司 | A kind of insulating power detection method |
| CN110200346A (en) * | 2019-06-06 | 2019-09-06 | 安徽高梵电子商务有限公司 | A kind of down jackets supply service platform Internet-based |
-
2019
- 2019-09-26 CN CN201910915687.4A patent/CN110596181B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2534050A1 (en) * | 1982-10-05 | 1984-04-06 | Meca Appliquees Lab | Elements of a heating dummy for thermal evaluation, especially for studying the thermal properties of a garment and the thermal consequences due to wearing a breathing system |
| US5058388A (en) * | 1989-08-30 | 1991-10-22 | Allan Shaw | Method and means of air conditioning |
| CN1959393A (en) * | 2006-11-20 | 2007-05-09 | 宁波纺织仪器厂 | Method for testing insulating property of textile |
| CN102507641A (en) * | 2011-10-24 | 2012-06-20 | 东华大学 | Self-adapting testing instrument for heat-moisture comfort performance of fabric and coupled testing method using same |
| CN202496420U (en) * | 2011-11-29 | 2012-10-24 | 浙江报喜鸟服饰股份有限公司 | Coat with adjustable thermal insulation performance |
| CN102980909A (en) * | 2011-12-13 | 2013-03-20 | 南通大学 | Device for testing heat insulating property of fabrics |
| CN105203587A (en) * | 2015-08-26 | 2015-12-30 | 上海艾莱依实业发展有限公司 | Method and equipment for testing heat retention property of down garment |
| CN206848198U (en) * | 2016-08-11 | 2018-01-05 | 中国标准化研究院 | A kind of indoor thermal environment Comfort Evaluation thermal manikin with temperature measuring equipment |
| CN206137278U (en) * | 2016-10-28 | 2017-05-03 | 安徽瓦尔特机械贸易有限公司 | Refrigeration heat preservation sportswear that is used for outdoor exercises specially |
| CN206836269U (en) * | 2017-06-08 | 2018-01-05 | 安徽高梵电子商务有限公司 | A kind of freeze down jackets |
| CN109507231A (en) * | 2018-12-28 | 2019-03-22 | 武汉纺织大学 | A kind of fabric heat-insulation ability meter under motion state |
Non-Patent Citations (1)
| Title |
|---|
| 高原寒冷睡袋研究及小型现场保温试验;聂旭颖;《中国个体防护装备》;20090815;第4卷;第24-27、39页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110596181A (en) | 2019-12-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110596181B (en) | Down jacket thermal insulation performance detection acceptance method | |
| CN104102789B (en) | A kind of assessment system and method for heat and moisture in the building environmental rating | |
| CN101569771B (en) | Method and system for controlling atomization fumigation by multipoint temperature feedback | |
| CN110160669A (en) | A kind of poultry cultivation sendible temperature detection device and method | |
| CN204228689U (en) | A kind of easy humidity sensor calibration equipment | |
| CN108050773A (en) | A kind of drying device that can measure material color and luster and metamorphosis in real time | |
| CN107255534A (en) | A kind of error measurement method of Thermistor Temperature Measurement instrument | |
| CN102590273B (en) | System and method for detecting warm-keeping rate of a textile | |
| CN105864985A (en) | Wearable intelligent device used for controlling air conditioner and air conditioner control method | |
| CN105841846B (en) | The test method of NTC heat sensitive chips | |
| CN204649322U (en) | A kind of electronic cigarette temperature measuring equipment | |
| CN206772874U (en) | A kind of knitted dress thermal resistance measurement device | |
| CN108106689B (en) | A kind of modeling method and device using pressure sensor on-line monitoring agricultural machinery medicine-chest residue drug storage amount | |
| CN208621456U (en) | The measuring device of fiber moisture absorption heating performance | |
| CN109008987A (en) | A kind of photo-electric biosensor and its method for heating and controlling | |
| CN108918581A (en) | Non-invasive vegetable and fruit detection device and grading method thereof | |
| CN108572087A (en) | The parameter test method and its system of temperature test chamber | |
| CN112273701A (en) | Method, system and platform for monitoring ash hanging degree of tobacco leaves in curing barn | |
| CN104833694A (en) | Fabric cold feeling testing apparatus | |
| CN105866344A (en) | Method for ambient humidity detection | |
| CN107655404A (en) | A kind of measuring method of sinking degree | |
| CN206192940U (en) | Compared with prior art, | |
| CN102421355A (en) | Method for measuring blood oxygen of fingers and finger gripping oximeter | |
| CN209623875U (en) | A kind of probe for the measurement of ice face temperature | |
| CN203414428U (en) | Heat insulating film temperature testing instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |