IS/ISO 105-A06: Textiles - Tests for Colour fastness : Part A06 Instrumental determination 1/1 standard depth of colour

12 Pages·1995·1.1 MB·English

by  Bureau of Indian Standards

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in order to promote transparency and accountability in the working of every public authority,
and whereas the attached publication of the Bureau of Indian Standards is of particular interest
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education and knowledge, the attached public safety standard is made available to promote the
timely dissemination of this information in an accurate manner to the public.
“जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ”
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“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS/ISO 105-A06 (1995): Textiles - Tests for Colour fastness
: Part A06 Instrumental determination 1/1 standard depth of
colour [TXD 5: Chemical Methods of Test]
“!ान $ एक न’ भारत का +नम-ण”
Satyanarayan Gangaram Pitroda
““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee””
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै”
Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”

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1S/1S0 105-A06 :1995

Indian Standard
TEXTILES — TESTS FOR COLOUR FASTNESS
PART A06 INSTRUMENTAL DETERMINATION OF
1/1 STANDARD DEPTH OF COLOUR
ICS 677.016.47:620.191.73.05

@BIS 2007
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002

January 2007 Price Group 3
Chemical Methods of Test Sectional Committee, TX 05
‘#J
.&. NATIONAL FOREWORD
This Indian Standard (Part A06) which is identical with ISO 105-A06 :1995 ‘Textiles — Tests for colour
fastness — Part A06 : Instrumental determination of 1/1 standard depth of colour’ issued by the
International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on’
the recommendation of the Chemical Methods of Test Sectional Committee and approval of the Textile
Division Council.
The text of ISO Standard has been approved as suitable for publication as an Indian Standard without
deviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention
is particularly drawn to the following:
a) Wherever the words ‘International Standard’ appear referring to this standard, they should
be read as ‘Indian Standard’.
b) Comma (,) has been used as adecimal marker while inIndian Standards, the current practice
is to use a point (.) as the decimal marker.
In this adopted standard, reference appears to the following International Standard for which Indian
Standard also exists. The corresponding Indian Standard which is to be substituted in its place is
listed below along with its degree of equivalence for the edition indicated:
International Standard Corresponding hdian Standard Degree of
Equivalence
KSO 105-J03 : 1995 Textiles — 1S 15098:2002 Textiles — Method for Technically
Tests for colour fastness — determination of colour fastness : Method Equivalent
Part J03 : Calculation of colour for calculation of colour difference
difference
The composition of Technical Committee responsible for the preparation of this standard is given in

National Annex A.

in reporting the results of a test or analysis made in accordance with this standard, if the final value
observed or calculated, is to be rounded off, it shall be done in accordance with IS 2:1960 ‘Rules for
rounding off numerical values (revised)’.
E
1S/1S0105-A06 :1995
hcfian Standard
TEXTILES — TESTS FOR COLOUR FASTNESS
1’
PART A06 INSTRUMENTAL DETERMINATION OF
1/1 STANDARD DEPTH OF COLOUR
,,
*
1 Scope 3 Principle
This method is intended for determining 1/1 standard The CIELAB colour coordinates L“ (lightness), C“ab
depth of a dyeing on any textile material by a calor- (chroma) and h,b (hue) of the dyeing to be checked for
imetric method as a permitted alternative to the visual 1/1 standard depth are measured instrumentally. The
method described in clause 12 of ISO 105-AOI:1 994. lightness Lso for 1/1 standard depth is calculated by
means of a given equation. The lightness difference
This method is applicable to 1/1 standard depth of AL between the measured lightness L* of the dyeing
colour only. Its use for other standard depths is under and the calculated lightness LSD required for 1/1
consideration. standard depth is determined to decide if the dyeing
represents 1/1 standard depth.
NOTE 1 Specimens which this calorimetric method indi-
cate to be of 1/1 standard depth may differ from specimens
which are visually assessed to be of 1/1 standard depth by 4 Apparatus
comparison with physical standards known to be of 1/1
standard depth. These differences may lead to differences
4.1 Spectrophotometer or calorimeter, meeting
in the results of tests applied sub sequently. It is rec-
ommended that the method of assessmen t of 1/1 standard any one of the definitions described in CIE publication
15.2, subclause 1.4.
depth, i.e. ISO 105-A06 or visual, be included in the report
of tests subsequently applied.
5 Testspecimen
2 Normative reference Cut a representative specimen of the dyeing to be
checked for 1/1 standard depth and mount it on an
The following standard contains provisions which, opaque white backing which has not been pretreated
through reference in this text, constitute provisions with a fluorescent whitening agent. The size of the
of this part of ISO 105. At the time of publication, the specimen shall fit at least the aperture of the instru-
edition indicated was valid. All standards are subject ment to be used for measurement. A minimal speci-
to revision, and parties to agreements based on this men size of 50 mm x 50 mm is recommended.
part of ISO 105 are encouraged to investigate the
possibility of applying the most recent edition of the When presented to the instrument, the specimen
standard indicated below. Members of IEC and ISO shall be of sufficient thickness to be opaque, other-
maintain registers of currently valid International wise light will pass through the specimen and reflect
Standards. off the backing material. Check the opacity of the
specimen by measuring it over a black background
CIE Publication No. 15.2:1986, Calorimetry, (second and separately over a white background. If complete
edition).’) opacity cannot be achieved, then it is sufficient if the
1) Available from the Central Bureau of the CIE, Kegelgasse 27, A-103O Vienna, Austria.

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1s/1s0105-AO6 :1995
difference between the L“ resulting from measure- K are the coefficients of the polynomial P,
ments over black and white backgrounds is less than “m form = O to 3.
0,2.
~ and Kn,mare listed in table 1.
6 Procedure
7.2 Calcualte the lightness difference between the
measured and calculated values: AL = L“ – ~~. If ~
Place the test specimen against the sample port of
is not more than + 0,5, the specimen represents 1/1
the instrument in such a way that it provides a
standard depth of colour.
smooth surface and read the ClELAB coordinates L“
(lightness), C“ab (chroma) and”h,~(hue), using the CIE
7.3 Typical data which may be used to verify a
10° observer and illuminant D65. Take at least two
computer program for direct calculation of M are
readings, preferably from different areas of the test
given in annex A. Annex Bsuggests corrective action
specimen, and average them.
if the test specimen does not adequately represent
1/1 standard depth.
7 Calculation
8 Test report
7.1 Calculate the lightness ILD required for 1/1
standard depth using the equation: The test report shall include the following information:
~~ = 20,4 + C.P + 6[exp( - C.P/6)] a) the number andyear of publication of this part of
ISO 105; i.e. ISO 1O$AO61995;
where
b) alldetails necessary for complete identification of
c =C“ab
the sample tested;
3
c) identification of the spectrophotometer or calor-
P = ~Kn,m(hab – hn)m for hn< h,b< h.+,
m=o imeter used, including the CIE geometry type
selected;
in which
d) the value of M calculated for the sample (see
hn are the limiting angles of the different col- 7.2);
our sectors in the CIELAB colour diagram, .
forn=lto9; e) the test date.

Table 1 — Limiti n g--angles h,..and coefficients K.r,.,,_,’ of the .n.olv,..no–mial P
n hn Kn,o Kn1, K-,2 K,B,3
1 0 3,27 X10-’ 1,73 X10-3 –2,13 X10-5 8,68 x 10-7
2 52 4,81 X10-’ 6,57 X10-3 1,14 X10-4 –3,50 X10-6
3 79 6,73 X10-’ 5,08 X10-3 – 1,69x10-4 1,07 X10-6
4 135 6,14 x10-’ –3,83 x10-3 1,02 X10-5 6,40 X10-e
5 203 4,21 X10-‘ – 1,56x10-3 2,32 X10-’5 -4,82 x10-7
6 267 2,90 X10-‘ –4,51 XI O-3 –6,93 x10-5 2,43 X10-6
7 302 1,51 xlo~’ –4,40 X10-4 1,85 x10-4 –2,30 x10-6
8 340 2,76 X10-‘ 3,69 X10-3 –7,66 X10-5 “9,22 x10-7
9 360 3,27 X10-‘ 1,73 X10-3 –2,13 x10-5 8,68 x 10-7

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1S/1S0105-AO6 :1995
$.
I Annex A
1’
(informative)
Representative test data
To help check computer programs giving AL values directly from measured colour coordinates of the test speci-
men, some representative test data are given in table A.1.
Table A.1 — Test data for computer program check of M, calculation
L“ C“ab kib AL
30,0 20,0 0,0 + 1,043
30,0 20,0 1,0 + 1,020
30,0 .20,0 180,0 – 1,023
30,0 20,0 359,0 + 1,072

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1S/1S0 105-A06 :1995
,1
I
Annex B
(informative)
Corrective action
If the lightness difference AL.is greater than ~ 0,5, the test specimen does not adequately represent 1/1 standard
depth. A fresh dyeing should be made using a lower concentration of dye if AL is negative, or a higher concen-
tration of dye if u is positive.
II
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1S/1S0 105-A06 :1995
NATIONAL ANNEX A
(Nationa/ Foreword)
COMMITTEE COMPOSITION
Chemical Methods of Test Sectional Committee, TX 05
Organization Representative(s)
TextilesCommittee, Mumbai DRG.S.NADIGER(Chairman)
SHIWE.VISWAMBHARA(AM/ternate)
BapujiInstituteofEngineering &Technology, Davangere, DRH.L.VIJAYKUMAR
DRK.MURUGESHBASU(Alternate)
CentralInstituteforResearch onCottonTechnology,MumlM DR(Ms) C.R.RAJE
D~R.H.BAIASUBRAMAN(YAA/ternate)
Central PollutionControlBoard, Delhi DRM.Q.ANSARI
SHRIAJAYA~GARWA(LAlternate)
Clariant India Ltd, Mumbai DRV.G.NAYAK
Directorate of Standardization (Production & Supplies), LT-COL(DR)R.SRIVASTAVA
New Delhi LT-CDRB.MA~JUNAT(HA/temate)
In personal capacity (2 !Yddhi Vinayalr Cooperative Group SH~IM.D.DIXIT
Housing Society, Swatantrya Veer Savarkar Marg,
Prabhadevi, Dadac Mumbaj
IndianInstituteofCarpetTechnology, Bhadohi PROF(DR)K.K.GoswAMI
SHRIMATBIETTYDASGUPTA(Alternate)
IndianJute Industries’Research Association, Kolkata SHRIA.K.BANERJEE
Jaya Shree Textiles, Rishra SHRIABHEYNAIR
SHIWPAWANSHARMA(A/ternate)
L.N.Chemical Industries, Mumbai SHRIKETANL.GANDHI
Maniklal Verma TextileInstitute, Bhilwara DRN.K.MATHUR
Man-Made TextileResearch Association, Surat DRSANDEEPR.NAIK
SHRIM.G.PATEL(Alternate)
MinistryofDefence (DGQA), Kanpur LT-COLP. P.NAIDU

SHRIRAMAYADAV(A/ternate)

Ministry ofDefence (Fl&D), Kanpur MsARCHANAVYAS
MsPRIYANKKAATIYAR(Alternate)
OfficeoftheTextileCommissioner, Mumbai SHRIR.A.LAL
Premier Colorscan Instruments PvtLtd,Thane SHRIRAYMONDRAMRAJKAR
SHmD.1.DESAI(A/ternate)
Rajasthan Spinning andWeaving MillsLtd, Noida SHRIK.D.JOSHI
SHRIVIJAYYADAV(Alternate)
Reliance Industries Ltd, New Delhi SHRIP.K.BADAMI
SHRISANJEEVISRAN(IAlternate)
SNDT Women’s University, Mumbai DFI(Ms)BHARATAI.PATWARDHAN
SuditiIndustries Ltd, Mumbai SHRIR.CHINRAJ
SHRIRAJENDRGAAIKWAD(Alternate)
SunilIndustries Ltd, Mumbai SHRIVINODG.LATH
SHRIRAMESHKtiANNA(Alternate)
Texan Lab, Mumbai SHRIULLHASNIMKAR
SHFNRAHULBHAJEKA(RAlternate)
Textiles&Engineering Institute,Ichalkaranji PROFS.K.LAGA
PROFS.S.CHINCHWAD(EAlternate)
The Bombay Millowner’sAssociation, Mumbai SHRIMAt+ESHSHARMA