Konzernnorm
快速学会日语Descriptors:cover, nonwoven, needle-punched nonwoven, needle web, light resistant,
Confidential. All rights rerved. No part of this document may be transmitted or reproduced without the prior written permission of a Standards Department of the Volkswagen Group.
Parties to a contract can only obtain this standard via the responsible procurement department.
VOLKSWAGEN AG
N o r m v o r A n w e n d u n g a u f A k t u a l i t ät p r üf e n / C h e c k s t a n d a r d f o r c u r r e n t i s s u e p r i o r t o u s a g e .
T h e E n g l i s h t r a n s l a t i o n i s b e l i e v e d t o b e a c c u r a t e .I n c a s e o f d i s c r e p a n c i e s t h e G e r m a n v e r s i o n s h a l l g o v e r n .
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3.3 Appearance
The nonwoven material shall not fray at the cut edges during processing and in later u. The material must be flexible enough to conform to the curves (radii) inside the car without forming cracks or folds.
The material must not become sticky either at room temperature or at +90 °C, and the impregnation must not become brittle at temperatures down to -40 °C.
The material must also be resistant to mold fungus in a moist heat climate.
compatibility
3.4 Physiological
The nonwoven material must be physiologically safe and must not induce skin irritation (e.g., due to fine fiber dust) or produce objectionable odors.
Substances that are emitted at elevated temperatures must be toxicologically safe.
3.5 Identification according to VDA 260
Decorative nonwoven material: >PP+SBR<
Application of adhesive (where ud): >PA<
3.6 Identification
According to drawing.
catalog是什么意思3.7 Conditioning
Prior to testing, the specimens must be conditioned for at least 48 h in the DIN 50014 − 23/50-2 standard climate.
3.8 Evaluation of the measuring results
The required numerical values apply to each individual measurement.
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See Table 1
Table 1
No.Property Unit Requirementsteam什么意思
Type without
index
Type A Type B
1Material and structure Nonwoven
made of 100%
polypropylene
fibers, spin dyed,山木培训官网
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quality 1 a;
bonding using
needle-punching
and back
impregnation.
The top side must
exhibit a nappy
structure or a
fleecy character
according to the
original sample.Nonwoven made of
100% polypropylene fibers in
6.7 dtex, spin dyed; bonding using needle-punching and
back impregnation.
The surface must exhibit
a velour-type finish (dilour quality) according to the original sample. In order to avoid inhomogeneities on the surface of the nonwoven fabric-covered components,
the needle-punched nonwoven surface must always be shorn.
The fiber material must be light-resistant,
so that sufficient resistance to color change
and abrasion is ensured.
Bleed-through of the bonding agent is not permitted.
1.1Adhesive coating--The back
can be adhesive-
coated acc. to
the relea.
2Color and surface structure Acc. to relead sample布偶秀大电影
3Weight per unit area,
e Section 5.1
3.1Overall structure
(without adhesive)g/m2100
50
550+−100
50
470+−100
50
390+−
3.2Nonwoven fabric g/m2≥ 420≥ 320≥ 270 3.3Back impregnation g/m2≥ 80≥ 100≥ 70 3.4Adhesive coating of the back g/m2--≥ 100 4Thickness mm
4.0 ± 0.5 2.5 ± 0.5 5Tear strength
per 5 cm specimen width
不来梅英文
5.1Lengthwi N≥ 450≥ 400
5.2Crosswi N≥ 550≥ 250
6Elongation at tear,
e Section 5.2
6.1Lengthwi%≥ 40
6.2Crosswi%≥ 40
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No.Property Unit Requirement
Type without
index
Type A Type B
7Tear propagation strength
per 5 cm specimen width,
e Section 5.3
7.1Lengthwi N≥ 40
7.2Crosswi N≥ 40
8Abrasion characteristics,
e Section 5.4
8.1Behavior after 1,000 revolutions
8.1.1Weight loss g≤ 0.18≤ 0.20
8.1.2Wear profile The napped structure or fleece layer must not be
abraded down to the back coating at any point.
Uniform fading according to gray-scale level 2.5
as per DIN EN 20105-A02 is permissible.
9Behavior after xenon arc light aging
acc. to Test Specification PV 1303
Exposure periods: 10
9.1Colorfastness to light Gray-scale level ≥ 4 acc. to DIN EN 20105-A02.
Color shift is not permitted.
9.2Lightfastness
Abrasion behavior after
300 Crockmeter strokes
against dry rubbing cloth,
e Section 5.5Practically no napping or fleece abrasion; slight
trace of abrasion corresponding to the original sample is permissible.
Substrate material shall not be visible.
10Colorfastness to water
10.1Filter paper test,
e Section 5.6
Gray-scale level 5 acc. to DIN EN 20105-A03
10.2Aging of a nonwoven strip half
submerged in deionized water After one hour of water immersion and subquent drying, there must be no noticeable color change.
11Colorfastness to abrasion
11.1Rotary abrasion test,
e Section 5.7Gray-scale level 5 acc. to DIN EN 20105-A03; gray-scale level 4.5 is permissible.
11.2Crockmeter test
acc. to PV 3906
20 strokes against
moist nettle cloth Gray-scale level 5 acc. to DIN EN 20105-A03; gray-scale level 4.5 is permissible.
12Dimensional change after 1 h water
immersion followed by 24 h at +90 °C
aging in mechanically circulated air and
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acclimatization,
e Section 5.8
12.1Measured wet
12.1.1Lengthwi%-0.5 to +0.5 12.1.2Crosswi%-0.5 to +0.5 12.2After aging at elevated
temperature and
acclimatization
12.2.1Lengthwi%-1.0 to +1.0 12.2.2Crosswi%-0.5 to +0.5
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5 Notes on testing
5.1 Weight per unit area
Test according to DIN EN 29073-1 with 100-cm2 round specimens.
5.2 Elongation at tear
Test according to DIN EN 29073-3; traver speed v =100 mm/min; free clamping length (measurement length) 100 mm.
5.3 Tear propagation strength
Test according to DIN 53859-4; traver speed v =100 mm/min; the mean value (ξ) of the 10 points of interction in the load/displacement curve shall be designated as the tear propagation strength.challenged
characteristics
5.4 Abrasion
Test according to PV 3908, contact pressure 9.81 N.
behavior
5.5 Abrasion
Crockmeter test according to PV 3906.
At least 1 specimen shall be tested per direction after the xenon arc light aging; possible bleeding of the rubbing cloth is not evaluated.
5.6 Filter paper test
A piece of filter paper (Schleicher & Schüll Blauband 5893), previously immerd in deionized water, shall be placed on a ction of nonwoven fabric of approx. (50 x 50) mm; the together shall then be loaded for 1 h with 5 kg between two glass plates.
