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Method and sample frame for testing heat retention of down loose fibers

A test method and down powder technology are applied in the preparation of test samples, measuring devices, instruments, etc., to achieve the effect of simple process, reliable data, and promoting the improvement of test level.

Inactive Publication Date: 2012-11-21
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no research on the test method of thermal insulation of down loose fiber

Method used

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  • Method and sample frame for testing heat retention of down loose fibers
  • Method and sample frame for testing heat retention of down loose fibers
  • Method and sample frame for testing heat retention of down loose fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] (1) Pretreatment of down samples: Take 250g of washed white duck down samples with a bulkiness of 17.0cm and a down content of 90%, spread them one by one and mix them evenly, and use the four-corner halving method to shrink the down samples. For the sample, take two parts of a pair of corners from the sample of the three-time four-corner halving method as the preparatory sample for the test, put the preparatory sample into the pretreatment box, and keep the constant temperature and humidity under the first-level standard atmospheric condition for 24 hours. use;

[0047] (2) Preparation of the test sample: take the height of the sample frame cloth curtain as 2.3cm to prepare the sample frame, place the sample frame on a flat-plate thermal instrument, weigh 1g of the pretreated down sample, Put it into the sample frame, spread it evenly with a glass rod, and then cover a piece of cotton standard lining fabric (30cm×30cm) on the top of the down sample to prepare a sample ...

Embodiment 2

[0051] (1) Pretreatment of down samples: Take 250g of washed gray duck down samples with a bulkiness of 16.7cm and a down content of 80%, spread them evenly and mix the samples one by one, and use the four-corner halving method to shrink the down samples. For the sample, take two parts of a pair of corners from the sample of the three-time four-corner halving method as the preparatory sample for the test, put the preparatory sample into the pretreatment box, and keep the constant temperature and humidity under the first-level standard atmospheric condition for 24 hours. use;

[0052](2) Preparation of the test sample: Take the height of the sample frame cloth curtain as 5.0cm to prepare the sample frame, place the sample frame on a flat-plate heat preservation instrument, weigh 10g of the down sample after pretreatment, Put it into the sample frame, spread it evenly with a glass rod, and then cover a piece of cotton standard interlining fabric (30cm×30cm) on the top of the dow...

Embodiment 3

[0056] (1) Pretreatment of down samples: Take 250g of washed white goose down samples with a bulkiness of 15.6cm and a down content of 70%, spread them one by one and mix the samples evenly, and use the four-corner halving method to shrink the down samples. sample, take two parts of a pair of corners from the sample of the three-time four-corner halving method as the preparatory sample for the test, put the preparatory sample into the pretreatment box, and keep the temperature and humidity under the first-level standard atmospheric condition for 24 hours. use;

[0057] (2) Preparation of the test sample: take the height of the sample frame cloth curtain as 7.7cm, make the sample frame, put the sample frame on the flat-plate heat preservation instrument, weigh 20g of the down sample after pretreatment, Put it into the sample frame, spread it evenly with a glass rod, and then cover a piece of cotton standard interlining fabric (30cm×30cm) on the top of the down sample to prepare...

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Abstract

The invention discloses a method and a sample frame for testing the heat retention of down loose fibers. According to the method, first, down loose fibers are pretreated, and a testing sample is prepared; heat retention rate of the down loose fiber sample is tested by using a planar heat retaining device, and a tested value of the down loose fibers is obtained through calculating. The sample frame comprises a bottom frame, four right-angle side rods and a cloth curtain. The bottom frame is in a shape of concentric squares. One end of each right-angle side rod is respectively fixed on one inner corner of the bottom frame. The dismountable cloth curtain is sleeved on the outer side of the four right-angle side rods from top to bottom. One end of the cloth curtain contacts the upper surface of the bottom frame. With the method, the testing of down loose fiber heat retention can be realized with simple technology and reliable data. The method assists in promoting the researches on heat retention of down and down products, and in promoting the testing level of the industry. The method has potential to be applied in the developments of down loose fiber retention testing method, testing standard, testing apparatus, and the like.

Description

technical field [0001] The invention relates to the test of the heat retention of loose fibers, in particular to a test method and a sample frame for the heat retention of loose fibers of down. Background technique [0002] my country is very rich in down resources and is the world's largest producer and exporter of down and its products. The export volume accounts for two-thirds of the world's export market. "Reputation. my country is a big country in the down industry, but it is not a strong country. It is relatively backward in the research and development of the industry, especially in the industry's related product standards and testing methods, and there are serious deficiencies. The standardization level of my country's down industry is backward, the national standards and industry standards overlap, and some content of method standards and product standards do not match. These problems have added obstacles to the development of down industry. Warmth retention is the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/00G01N1/28
Inventor 张克和李永强周岚蒙冉菊傅建华
Owner ZHEJIANG SCI-TECH UNIV
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