Showing posts with label Report. Show all posts
Showing posts with label Report. Show all posts
Wednesday, August 19, 2009
Friday, August 14, 2009
Textiles Quality Control Standards and Testing Procedures
At Herman Miller all materials undergo two forms of testing. Initial testing is done when a
new product, process, or supplier is accepted. These tests lead to the development of quality
standards, which our suppliers take responsibility for meeting. From that point on, materials
are checked on a random basis to see that suppliers adhere to the quality standards. Quality
is checked at suppliers, as materials are received in our facilities, and throughout production.
All Herman Miller textiles are tested for their ability to stand up to the kind of wear they are
likely to get in actual use, including fire retardancy, elongation, strength, and color transfer.
Qualities such as surface texture, pattern, ability to absorb or reflect light, ability to conform
to product, and ability to respond within an environment when placed next to woods, laminates,
glass, carpeting, painted surfaces, or other textiles are also taken into consideration.
When possible, our test procedures conform to the methods established by the American
Society for Testing and Materials (ASTM). Herman Miller strives to meet and exceed all industry standards pertaining to our products.
The Association for Contract Textiles (ACT) has developed five symbols that assure contract
fabrics perform up to industry standards and pass all applicable testing. These symbols are
included on all Herman Miller textile swatch cards where applicable:
Flame resistance (fabric's ability to resist burning)
Crocking resistance (fabric's colorfastness)
Ultra-violet light resistance (fabric's resistance to fading)
Physical properties (fabric's resistance t
o pilling, seam slippage, and tearing)
Abrasion (fabric's ability to withstand surface wear from rubbing)
new product, process, or supplier is accepted. These tests lead to the development of quality
standards, which our suppliers take responsibility for meeting. From that point on, materials
are checked on a random basis to see that suppliers adhere to the quality standards. Quality
is checked at suppliers, as materials are received in our facilities, and throughout production.
All Herman Miller textiles are tested for their ability to stand up to the kind of wear they are
likely to get in actual use, including fire retardancy, elongation, strength, and color transfer.
Qualities such as surface texture, pattern, ability to absorb or reflect light, ability to conform
to product, and ability to respond within an environment when placed next to woods, laminates,
glass, carpeting, painted surfaces, or other textiles are also taken into consideration.
When possible, our test procedures conform to the methods established by the American
Society for Testing and Materials (ASTM). Herman Miller strives to meet and exceed all industry standards pertaining to our products.
The Association for Contract Textiles (ACT) has developed five symbols that assure contract
fabrics perform up to industry standards and pass all applicable testing. These symbols are
included on all Herman Miller textile swatch cards where applicable:
Flame resistance (fabric's ability to resist burning)
Crocking resistance (fabric's colorfastness)
Ultra-violet light resistance (fabric's resistance to fading)
Physical properties (fabric's resistance t
o pilling, seam slippage, and tearing)Abrasion (fabric's ability to withstand surface wear from rubbing)
Wednesday, August 12, 2009
Development In Spinning
Developments in Spinning - the Tribological Approach
Eckhard SONNTAG
Emil BRÖLL GmbH & Co, Austria; www.broell.com
SUMMARY
The maximum production speed in spinning is limited either by engineering considerations or by the yarn itsself. Today technological limits, concerning yarn quality and end breakage rate are the most important factors. One should be aware of the fact, that the tribological most important elements in spinning are identical with the most crucial ones when optimizing this processes.
There will be a quiet revolution in the productivity of synthetic fibres like PES, PAN, PP and even wool. The same spinning speeds will be reached as in cotton spinning today. This will be possible through surface and material engineering, where the tribological interactions between the fibre and surfaces of contacting textile machine components are considered.
Eckhard SONNTAG
Emil BRÖLL GmbH & Co, Austria; www.broell.com
SUMMARY
The maximum production speed in spinning is limited either by engineering considerations or by the yarn itsself. Today technological limits, concerning yarn quality and end breakage rate are the most important factors. One should be aware of the fact, that the tribological most important elements in spinning are identical with the most crucial ones when optimizing this processes.
There will be a quiet revolution in the productivity of synthetic fibres like PES, PAN, PP and even wool. The same spinning speeds will be reached as in cotton spinning today. This will be possible through surface and material engineering, where the tribological interactions between the fibre and surfaces of contacting textile machine components are considered.