is 4778 (1982): cotton laces for footwear · the cotton yarn used in the manufacture of laces...
TRANSCRIPT
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है”ह”ह
IS 4778 (1982): Cotton laces for footwear [TXD 12: NarrowFabrics, Webbings and Braids]
4S 477S :1982
W?dw mm( fkwik)
( Reaffirmed 1995)
IndianStandard
SPECIFICATIONFORCOTTONLACJ3SFOR FOOTWEAR
@t%?/UDC 677?53 :677”21
@ BIS 1991
BUREAU OF INDIAN STANDARDSh4ANAICBHAVAN, 9 BAHADUR SHAH ZAFAR MARQ
NEW DELHI 110002
.
i. .
qti? % fqq q+i &iv * f+fvfk ( ~~nT~etwl)
Indian Standard
SPECIFICATION FOR COTTON LACES FOR FOOTWEAR
( First Revision )
3+TwfSif~a $:
rlwT9
y;a 115/45
Fa 100/45
Ya 135123
qa 100123
w 90123
pa 60123
TPW 145136
pi;f 115136
~q’a 100135
-TV 60/36
-w 60125
0 FOREWORD
0.1 This Indian Standard ( First Revision ) was adopted by the Indian Standards Institution on 11 January 1982, after the draft finslized by the Narrow Fabrics, Webbings and Braids Sectional Committee had been approved by the Textile Division Council.
0.2 This standard was first published in 1968 and for preparing this standard considerable assis- tance was derived from the following standards:
IND/TC/0303 Laces, fabric. Ministry of Defence.
V-L.51 Federal Specification for laces, shoe; cotton Section IV ( Part 5 ) of Federal Standard Stock Catalog. United States of America.
0.3 Recommended use of the laces covered in the standard is as follows:
Designation
L 115/45
L 100145
L 135123
L 100/23
L go/23
L 60123 L 145136
L 115/36
L 100/36
L 60/36
L 60/25
Laces _for
Safety boots for miners
Canvas boots
Football boots
Ankle derby boots
Cricket boots
Shoes Ski-boots ( Defence require-
ment ) Motor-cyclist shoes ( Defence
requirement )
Sports shoes; boots j Defence requirement )
Shoes ( Defence requirement )
do
NOTE - In the designation, the first numbar indi- cates the length of lace in ccntimetres and the second number indicates the minimum breaking load in
kilogram force.
1
IS 4778 : 1982
0.4 This standard contains clause 3.2 which calls for agreement between the buyer and the seller for permitting the buyer to use his option for selection to suit his requirement.
0.5 The Standards of Weights and Measures. Act, 1976 stipulates the use of the International: System of Units in the country; in order to fami-- liarize the industry with this system, the recom- mended SI Units for use in the textile industry are given in Appendix B.
0.6 For the purpose of deciding whether a parti- cular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test, shall be rounded off in accordance with IS 2 : 1960*. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard.
1 SCOPE
1.1 This standard covers braided tubular cotton: lances to be used for footwear.
2 MATERIALS
2.1 Yarn
The cotton yarn used in the manufacture of laces should be conforming to Grade A or B of IS 171 : 1973t.
2.2 Laces
The colour of laces and tags shall be as specifies in the contract or order.
2.2.1 Dyeing
The shoe laces shall be dyed to the required’ shade using suitable dyes.
2.2.2 For black laces manufactured against Defcnce orders, sulphur dyes shall not be used.
2.3 Tags
Both ends of the lace shall be provided with tags. of metal or plastic materials. The metal tags shall be coated with varnish or shall be of the same colour to match with the laces. In the case of- laces required by Defence ( L 145136, L 115/36,
*Rules for rounding off numerical values ( revrsed ).
?SPecification for grey cotton yarn (second revision )._
IS 1778 : 1982
L 100/36, L 60/36,L 63/25) metallic tags shall be used unless otherwise specified. The length of the tags shall be not less than 15 mm. The metallic tags shall not have rough joints, shall grip the lace firmly and the laces shall protrude about 2 mm out of the tip of the tag at either end.
2.3.1 Plastic tags shall be so fitted that the wisp- over is heat-sealed and the plastic materials fused and sealed so as to be an integral part of the lace. The plastic material used for tags shall be at least 0’15 mm thick.
3 REQUIREMENTS
3.1 The requirements for shoe laces for general use are given in Table 1 while those for D:fence use in Table 2.
t7TVii 1 ?fT9TV Wit? i fi3~ T?it i f3;i bR +I?? dWT~
Table 1 Requirements for Shoe Laces, General Use
e. d. *HI rn?rn mlm ti 9&s .SI No. Requirement Designation Method of Teat
r------------ h--___----,--,
155145 100145 535123
(3) (4) (5) 115 100 135
115 100 135
440(O) 440(45) 225(23)
’ 90123 60123 i6) (7) (8) 90 60 p-2
90 60 A-2
225(23) 225(23) IS 1969 : 1968*
41) i)
ii)
iii)
‘iii)
iv)
v)
Breaking strength, N ( kgf ), Min
a) slw¶ Bafa(i3 gi 3ti.t Rq )
13chur fastness to: a) Washing ( for dyed
laces ) b) Light ( for dyed laces )
fTmc srfa-itfmr $lip resistance
41% &T * W? VT& Gripping strength of
metallic tags
440(45) 440(45 ) 225(23) 225(23) 225(23) IS 1969 : 1968*
4 ww taaT 4 or better
4 3Trm-r &$a7 4 or better
4 aPEiT acaT
4 or better
IS 3361 : 1965t
I-S 2454 : 1967$
IS 3361 : 1965t
IS 2454 : 1967x
12r(;l ( 1’2 fWTFr ), ;qs 12N( 1.2 kgf ), Min
128V ( 13 f5aw ), 'y- 128N ( 13 kgf ), Min
Y-3 A-3
P-4 A-4
%cpoit - 5v-3 twd ;t; FiGI t fRp sisrwrrd FifTzr aTwr mbr 4trf.%F~a ?r TIT ~$3 $I I I$II;&~ For laces of other lengths, the breaking strength shall be not less than that specified in the contract
I
*$I ~t+t++~;1 npim w-i: a% Gbhm~ ma TT? B FT~S&I (v~arp%-m) I *Yethod for determination of breaking load and elongation at break of woven textile fabrics (first revision ).
?_$rrf 3 BFd BfX sin* t +I 9q:r;rVr RKi rii+ t farl ekt~ wfti ( yfTT @km ) I tqethod for determination of colour fastness of textile materials to washing ( second revision ).
rm ( ci+~ Fiq ) 4 BF~ arsq? CT iq VfmW am 5x3 %I SZFT I
, for determination of colour fastness of textile materials to artificial light ( xenon lamp ).
3
IS 4778 : 1982
enoif 2 WT JWJ’tT i F?i? $ GitTf t.3 fqp hrlh as173 5% wtimp’ ( Fk 3.1 )
Table 2 Requirements of Manufacturing Details for Shoe Laces for Defence Use ( Clause 3.1 )
-1. ?i. ahTf Pwn9
Sl No. Requirement Designation ~--------_---h______
‘Vi 115/45 pv145/36 yvf1:5/36 pa 100;36 L 115145 L 145/36 L 115/36 L 100/36
(1) (2) (3) (4) (3) (6) i) ?Wf& Slif q_;r 115 145 115 100
Length, cm, Min 115 145 115 100 ii) Z-?X 81Sq<, ‘Tq ( f%UTV) 440(45) 355(36) 325(36) 355(36)
;4;r n
Breaking strength, N ( kgf ), Min
440(45) 355(36) 355(36) 355(36)
-------7 ~a 60136 q 60125 L 60136 L 60125
(7) (8)
60 60 60 60
355(36) 245(25)
eha v&f Method of Test
(9)
P-2 A-2
1s 1969 : 1968”
355(36) 245(25) IS 1969 : 1968*
iii) *T W%lW, f%FiCi? Xi%- +-----------~~ qq qiT---------__---_-+ Tifa?TT V+R V@ FIT&
Colour fastness, slip resistance and grip-
c---------Same as specified in Table l---------_----__-+
ping strength
iv) ssz? Fitarf aitT ~q f%* 8 4 2+----------7 & 2------3.5 f 1.0 F-5 Flat width and tolera- 8& 2+---------7 js 2-----.--3.5 f 1.0 A-5
rices, mm
v) G49qT9, nr/Graf~a pa; 11’5 12’5 10’0 90 6.0 3'0 4-6 a$+, ;ym
M:ss;s g;p;Ar including 11’5 12.5 10.0 9.0 6.0 3.0 A-6
vi) fTT?Jl tddf WW: Manufacturing details:
ih) ftiii;‘f p bwr *-----_--- -_9fj---_- --_-_--_-_---j _ a) Total number of ends t-----------96------------_-_-.-+ -
a) apaii +I 3” iWl 16 WGXT 32t ---16, 32 mw48 -------16 ww 32 - b) Number of spindles 16 or 32+-----16, 32 or 48---------+16 or 32 -
“) %i/qpe 6 WIW 3+- ----6,3 q$m 2--------_t6 qqq 3 - c) Ends/spindles 6 or 3t------6,3 or 2-----------46 or 3
vii) aa * ftFkTf7Vl ft Tf +------I5 2~ x 2 (2/4@u )--+30 iw x 2 ( 2/2ow ) -
YPTWT TiwJl Recommended approxi-
mate count of yarn t-----l5 tex x 2 ( 2/24Os )----30 tex x 2 ( 2/2Os )
fzti - SfC rifq1 W7?r arrtm 3 Jfti&a f%W WB -m vW+r t afa isr qqWr;l flra T+ t fqb z&q arti *q m- -YGfTls fqm qr BWrT 8 I
NOTE - If SO specified in the contract or order, carbon-arc lamp may be used for determining co]our fastness to light.
*$r g ma t uis;r vllT aitT emwJT ma 57% 53 P+4vr TaftI ( qm yvhm) I *Method for determination of breaking load and elongation at break of woven textile fabrics( first revision ).
~-
3.2 Sealed Sample
SfC wTi7I 3 &i? i FlWFrl iq, Fq, F’d $fT i@ If in order to illustrate or specify colour, general.
mTs BETT nqa T$r $J a? %a tiiv 3 sfsfa % appearance, feel and such other characteristics.
RgflTT ;r$’ q? +iia7 FtklW %;i fqsl qTy I @ 9T+i
of the lace, a sample has been agreed upon and sealed, the supply shall be in conformity with.
3 ;r@ t LlTq TfiT f%% riit riTB %? W$F43T FT =J;r the samp’e in s”ch respects’
7BT qTit I
3.2.1 6kwi= ;r$t %> 7~13 % 3~fhirz % qTt 3 %?rr 3.2.1 The custody of the sealed sample shall be-
aity f?&T +I @ia qt$i ii?‘ WV+kiT BT fFiqT qTq \ a matter of prior agreement between the buyer and the seller
4
IS 4778 : 1982
4 PACKING
4.1 The laces shall be tied in pairs, then bundled or packed ( in 50 pairs ) in a manner acceptable to the purchaser. Only laces of the same designa- tion, length and colour shall be packed together in the same bundle or package.
5 MARKING
5.1 Each pair of laces shall be bound by a paper band bearing the following information:
a) Manufacturer’s name, initials or trade- mark;
b) Material ( for example, Cotton Lace ); and
c) Designation/length of lace ( cm ).
5.1.1 The paper band of the laces may also be marked with the Standard Mark.
NOTE - The use of the Standard Mark is governed by the provisions of the Bureau of Indian Standards Act, 1986 and the Rules and Regulations mxde there- under. The Standard Mrrk on products covered by * an Indian Standard conveys the assurance that they have been produced to~comply with the requirements of that siandard under a well defioed system of inspection, testing and quality control which is devisedand supervised by BIS and operated by the producer. Standard markEd products are also continuously checked by BIS for conformity to that standard as a further safeguard. Details of conditions under which a licence for the use of the Standard Mark may be granted to manufacturers or producers may be obtained from the Bureau of Indian Stan- dards.
5.2 Each bundle or package shall have a 1abeI securely attached bearing the following infor- mation:
a) Manufacturer’s name or trade-mark,
b) Designation/length of lace ( cm ),
c) Colour, and
d) Number of pairs.
6 SAMPLING
6.1 The quantity of laces of one definite t.ype delivered to a buyer against a despatch note shall constitute a lot.
6.2 The sampling plan and criteria for confor- mity shall be as given in Table 3.
__- _“,*_. ._.., _. . ., - ^ ____,,,__, _l.l”“l^---c^
* ,_. ,...-,“‘.I_. e--.-.
,.
IS 4778 : 1982
uwii 3 15% sr aqn S-iiT wywtr ii fd 9199w ( W3 6.2 )
Table 3 Sample Size and Criteria for Conformity ( Clnuse 6.2 )
Tlh ;f 3hl-i d fial
Number of Bundles io the Lot
(‘1 25 azr;
Up to 25
26 B 50 ?r%
26 to 50
51 B loom
51 to 100
101 B 300 w 101 to 300
301 aitz STir &7a
301 and above
8,?i w;iardimI &iI 43 qRrdwr
* Timr ( hii @a *iyJt ) Number of Bundles Permissible Number of Defectives
to be Selected ( Pairs of Laces ) r----‘----- h -------7 qf=TQi? VhVJT % fqp fWT?T?'F%T% f+fq For Non-destructive For Destructive
Testing Testing
(2) (3) (4) 3 3 0 3 3 0
5 5 1 5 5 1
8 7 2
8 7 2
13 10 3 13 10 3
20 14 4 20 14 4
6.3 Ten pairs of laces shall be selected from each bundle for examining-tags, length, flat width and mass.
6.3.1 Two pairs of laces shall be selected from each bundle for testing breaking load, slip resis- tance and gripping strength of tags.
6.3.2 For testing colour fastness, three test specimens of each colour for lot size of 100, bundles or less and five test specimens otherwise: shall be prepared.
APPENDIX A ( Tables 1 and 2 )
METHODS OF TEST
A-l CONDITiONING OF SPECIMENS AND ATMOSPHERIC CONDITIONS FOR TESTING
w-l.1 zwv? w’ti fFsW;r CTf~Y~fCiT mr 9;6$ $T A-l.1 Prior to determination of mass and slip resistance, the test specimens shall be conditioneh to moisture equilibrium in a standard atmos- phere at 65 &- 2 percent RH and 27 f 2°C ( see’ IS 196 : 1966* ) for 48 hours in accordance with IS 6359 : 197It. For other determinations, the
*m?wJT a; fqp Wf?vT fwfasT Gt f+farFr (yi-wm) I *Specification for atmospheric conditions for testing,
qwr@ * fhf+TI % fq &ii I ( revised ).
fMethod for conditions of textiles.
6
IS 4778 : 1982
test specimens shall preferably be conditioned in the standard atmosphere for 48 hours.
A-l.2 The determination of mass and slip resis- tance shall be carried out in the standard at- mosphere and all other tests shall preferably be carried out in the standard atmosphere.
A-2 LENGTH
A-2.1 Measure the length of 2 tags on the test specimen to the nearest millimetre. Measure the length between the inner grips of the 2 tags by applying a tension of 28 =t 0’5 gf ( 274 rt 5 mN ) on the lace. The sum of these two measurements shall be taken as the length of the lace in the test specimen.
A-3 SLIP RESISTANCE
A-3.1 Apparatus
A suitable power-driven tensile strength testing machine with a rate of traverse of 115 f 12 mm/ min and a xlamp with 5 kg weight for appli- cation of tension on the specimen.
A-3.2 From a slip knot ( SPB Fig. 1 ) with its knot in the centre of ~the specimen, clamp *one end A of the specimen centrally in the upper Jaw, then clamp a 5 kg weight for a period of 10 se- conds at B. Remove the 5 kg weight and clamp
&T-Tag
+X-Lace
w&t 1 fkwm riia Fm. 1 SLIP KNOT
7
the free hanging length C of the specimen centrally in the pulling jaw. Operate the machine and record the highest load registered during the slipping of the first 50 mm of the lace through the slip knot. Continue to operate the machine until the knot is undone. Take the average of 6 results on each lace as the slip resistance.
A-4 GRIPPING STRENGTH OF TAGS
A-4.1
a>
b)
Apparatus
A suitable power-driven tensile strength testing machine with a rate of traverse of 1 I5 f 12 mm/min.
Slotted Plate (see Fig. 2 ) -A rigid metal plate of suitable dimensions with a vertical edge tapered slot along the length of the plate. Jn conjunction with the slotted plate, use the upper jaw of the testing machine to keep the slot at right-angle to the direction of application of load during the test.
wrgh 2 wm7 c&z FIG. 2 SLOTTED PLATE
Ba Lace
A-4.2 Procedure
Move the conditioned test specimen with one of its tags uppermost horizontally along the slot until both sides of the base of the tag rest on the top of the slotted plate. Centre the plate so that longitudinal axis of the test specimen is along the axis of the application of the load. Apply by hand an initial tension sufficient to strengthen the lace. Clamp the free end of the straightened specimen in the pulling jaw so that the free distance between the upper grip and the pulling jaw is 100 mm at the start of the test. Operate the machine and record the highest load registered before the tag is pulled from the lace. Discard the result and test another specimen if:
.--
a>
8
the tag slips through the slot without being removed from the fabric lace; and/ or
i IS 4778 : 1982
b) the tag buckles at the base or the tag is scrapped without being removed from the lace before the specified minimum gripping strength is reached.
iS ti’PK$ JJTTSrp” Pi 10 aT7fqq'i a;aitFTa CT Qk- Take the average of the results of 10 specimens
m f75T+ I at the gripping strength of the tag.
865 %&T$ A-5 WIDTH
5-5.1 VhvT qTV'i? * +FTf zF;t, JV 97 28 f 0.5 A-5.1 Measure the width of the test specimen to
?TT 3FT ( 274 f 5 fSFl? ;tfZq );TW? VTTT WTT8 the nearest millimetre after applying a tension of
t BT$ f;r%,;s?VT fqs"t 5% ;ITq + I 28 f 0’5 gf ( 274 & 5 mN ) on the test specimen.
a-6 2;59921 A-6 MASS
q-6.1 S??f~~ 3TV8 WT? % fq$ VJ%_ffi;ra $53 A-6.1 Take a conditioned pair of laces consti-
rFff PiF; &$cf + I 36 0.5 54TIT F> '7fT?$GaT ?F6 tuting the test specimen and weigh it to an
ti $ I $6-t TRg%Rft ‘?fhiVT qT;lf+8 t ZFWI'TFT accuracy of~0.5 g. Similarly, determine the mass
* m~a a? aif~ 8~ zh"~ry+i z~?$l t zqq~;r $ w if of other test specimens and take the average as the mass ofa pair oflaces.
+mr f;rmt 1 Pf?mw ( ts 0.3 )
awrf& + fT m_tifvayamgBsqst
APPENDIX B ( Clause 0.3 )
RECOMMENDED SI UNITS FOR TEXTILES
8. d. IeRrrl qa iglg BsTf SI No. Characteristic SI Unit
r------- A---,,-,
WTf Unit
(1) (2) (3) 1. fl=i-rf fW?dkT
frFa?4k7,?r?%lk
Length Millimetre Millimetre,
centimetre Metre
Width Millimetre Centimetre Millimetre, centimetre mm, cm
Centimetre, metre cm,m
9
wih Application
(5) til ;I$ q?tT Qi?wT 3FTf;mi
( 'JqTSTW)
qa, Tfwd, stfhi,
as+
Fibres Samples, test specimens
( as appropriate ) Yarns, ropes, cordage,
fabrics %FF =+“ff qT?f iF;@
CT VT+
@&C Q-cfWJT W;rhSi
(WTJP~W )
6TC+f, V+, &fWf
( sw3yfa)
Narrow fabrics Other fabrics Samples, test specimens
( as appropriate ) Carpets, druggets,
DURRIES ( as appro- priate )
IS 4778 : 1982
w. ti. BWQI
SI No. Characteristic
(1) (2) 3. ritzT”$
Thickness
4. tQ?“ts
T;T??
Linear density
5.
6.
7.
=rTB
Diameter
sfik Circumference
V@ ic al?:
if;) WW&TTi
a) =kq_far7
Threads in fabric:
a) Lengthwise
b) Widthwise
Micrometre ( micron ) Millimetre
Tex Millitex Decitex
Kilotex ~TFihk7 ( 9T&Ft;T )
f9chiiT Micrometre (micron ) Millimetre fsFi%m Millimetre
Number per centimetre
Number per decimetre
Number per centimetre
Number -per decimetre
JTffl %t9? TiWT
Number per centimetre
Jpatrl Application
(5) Mhermr@3f+ VT ms$, arFi+r, VT2 Delicate fabrics Otl~ltrsfabrics, carpets,
V ?+r
Tig, $J qT
VXl”Vri, Tf+& a+PitT
s-fist Yarns Fibres Filaments, filament
yarns Slivers, ropes, cordage 2%
St%, TfFUG, *fiti
Fibres Yarns, ropes, cordage
q”, ?rtfi@ Ropes, cordage
$r Vr$ ( sVGV$Ef )
Woven fabrics ( as appropriate )
7t-h Reeds
IS 4i78 : 1982
MibI Application
s. ti. Sl No.
mvf Characteristic
(1)
10.
11.
12.
13.
14.
15.
16.
(2) Stitches in
knitted fabric: a) Lengthwise
b) Widthwise
zii iF;“t FmTf Stitch length
srfa 4wf +PTzT 5-l
vww=r Mass per unit area
affl S?T$ WTT$ iF;T
il=mFT
Mass per unit length
Twist
Test or gauge length
Breaking load Millinewton
WW#M SI Unit
r------ A---_--,
B%T$ Unit
(3)
FikFa ’ Abbreviation
(4)
Courses per centimetre
Courses per decimetre
Wales per centimetre
Wales per decimetre
frci%T-zT Millimetre
Grams per square metre
TPT zrfa Q?zP
Grams per metre
rrfa ?Ni? it e
srfa G?zT if $Z Turns per
centimetre Turns per metre
flTFr-%T, Sh?ZT
Millimetre, centi- metre
Newton
Breaking length Kilometre
11
courses/cm
courses/dm
wales/cm
walesldm
f9G-l mm
mm, cm
mN
N
fwik km
(5) Knitted fabrics ( as
appropriate )
f;Tz f%i iF;sp, -f&c? m@ Knitted fabrics, made-
up items
4;9+
Fabrics
Fabrics
Yarns, ropes, cordage ( as appropriate )
%, TT BelT ?VT srr;rf%si
VT? ( VEJVJsa ) Fibre, yarn and fabric
specimens (as appro- priate )
%r?, V?-iT 67fma i$t't 51T?r qa ( a=$ w aaw_qFIT m )
9-5 T?r ( mm-efT srW=$41FTif ), Tfemi, ~lf79i, w$
Fibres, delicate yarn ( individual or ske- ins )
Strong yarns ( indivi- dual or skeins ) ropes, c o r d a g e , fabrics
Vt Yarns
BL”-““’ ..-I.- ~_^_~.~_*^_“~_
_..__“__ ,^_. ,... . . . _- .
IS 4778 : 1982
9i. d. Sl No.
UC79
Characteristic
(1) 17.
(2) WRrT
Tenacity
18.
Twist factor or twist Multiplier
19. F+&f TTTWri Bursting strength
20.
Tear strength
21.
22.
sl-Q5 &iTf
Pile height
srg?r WI??
Pile density
pa ais m$ SZ Unit
r------- h-------,
BWf Unit
(3) sfa ha fsFft
dfRf;?r . Abbreviation
j4) fsqzm
Elastic modulus
yGr Millinewton
per tex
qq nfa %-txamr TT F’is^i;r
8Fi srfa ~-cTX2W ‘%T Wi$FT
Turns per centi- metre X square root of tex
Turns per metre x square root of tex
y-3 srfa si cva?zi. Newton per square
centimetre
f9$r ;yvr =S," Millinewton, Newton
mN/tex
f9?;r?*zi Millimetre
sofa vbfk7 9f3 f%fi- gcfzi 9rqT ?%rf 4
TT$Ff tr,“r W ZWTTT
Tvr if
Mass of pile yarn in grams per square metre per milli- metre pile -height
fsFi? yGr srfa afB niTa K,?Tg fqgii
Millinewton per tex per unit deforma- tion
12
turns/cm 7 xz/tex I
k turns/m \
fsy sq m”N, N
gW/mm pile height
f~+W/$%Tf
f%FT mN/tex/unit deformation
vdv Application
(5) tt, TTr ( wvwRvr VI
a=4 t FcF 3 ) Fibres, yarns ( indivi-
dual or skeins )
Yarns ( as appropriate )
;i;s$ Fabrics
Fabrics ( as appro- priate )
%T$bT
Carpets
Pile carpets
Fibres, yarns, strands
p ?6
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
??y ( Wa )
10
lj
20
25
yj
35
40
45
w
60
65
70
80
90
100