Disclosure to Promote the Right To Information

Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, 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 to the public, particularly disadvantaged communities and those engaged in the pursuit of 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.

इंटरनेट मानक

“!ान $ एक न' भारत का +नम-ण”Satyanarayan Gangaram Pitroda

“Invent a New India Using Knowledge”

“प0रा1 को छोड न' 5 तरफ”Jawaharlal Nehru

“Step Out From the Old to the New”

“जान1 का अ+धकार, जी1 का अ+धकार”Mazdoor Kisan Shakti Sangathan

“The Right to Information, The Right to Live”

“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता है”Bhartṛhari—Nītiśatakam

“Knowledge is such a treasure which cannot be stolen”

“Invent a New India Using Knowledge”

है”ह”ह

IS 11306 (1985): Teleprinter ribbon, cotton [CHD 14:Printing, Inks, Stationary and Allied Products]

IS :11306 - 1985

Indian Standard SPECIFICATION FOR

TELEPRINTER RIBBON, COTTON

Inks and Allied Products Sectional Committee, CDC 13

Chairman Representing

SHRI N. G. MAITRA Sulekha Works Ltd, Calcutta

Members

S~RIJ. A. ASTAPUTRE Ministry of Defence ( DGI ) SHRI K. P. MAJUMDAB ( Alternate 1

SHRI C. N. BALAKRISHNAN Chemical Testing & Analytical Research Laboratory ( Department of Industries & Commerce, Government of Tamil Nadu ), Madras

SERI P. N. SU~DARA RAO (Alternate ) SHRI N. S. BIRDIE Shri Ram Institute for Industrial Research, Delhi

SRRI C. P. SHARDA ( Alternate ) SHRI S. CHANNIAH Associated Duplicator Company Pvt Ltd,

Bangalore SHRI S. D. DANDEKAR Camlin Private Ltd, Bombay

SHRI R. M. DANDEXA~:. ( Alternate ) SHRI P. N. GANDHI Kores ( India ) Ltd, Bombay

DR T. R. BEAMBHA~I ( Alternate ) JOINT DIRECTOR OF INDUSTRIES Department of Industries, Government of

Maharashtra, Bombay DEPUTY DIRECTOR OF INDUS-

TRIES ( Alternate ) SHRI R. D. KAWATRA Directorate General of Technical Development SHRI RANBIR KISHORE National Archives of India, New Delhi

SHRI RAJENDRA PRASAD ( Alternate ) SHRI M. R. KUMAR All India Federation of Master Printers, New

Delhi SBRI V. N CHRABRA ( Alternate )

SHRI G. P. MADAN Survey of India, Dehra Dun SHRI S. K. SEN GUPTA ( Alternate)

SRRI A.M. MIwXANDANI Chelpark Co Ltd, Bangalore SHRI VASANTH ( Alternate )

( Cantrnucd on page 2 )

Q Copyright 1986 INDIAN STANDARDS INSTITUTION

I This publication is protected under the Indian Copyright Act ( XIV of 1957 ) and reproduction in whole or in part by any means except with written permission of the publisher shall be deemed to be an infringement of copyright under the said Art.

I

IS : 11306 - 1985

( Confinuedfrum page 1 )

Members

SHRI H. MITRA

SHRI R. MUKHOPADEYAY

Representing

Controller of Stationery, Government of India, i Calcutta

Development Commissioner ( Small Scale Industries ), New Delhi

SHRI P. SATYANARAYANAN ( Alter$zte ) SHRI R. K. N~QPAL Bharat Carbon & Ribbon Manufacturing Co Ltd.

New Delhi SHRI SAKVESH NARAIN ( Alternate )

SHRI K. L. NARAYAXSA Khoday Ribbon, Carbon & Allied Products Industries, Bangalore

SHRI C. S. BHAT~ACHARJEE ( Altemzte ) SHRI P. K. PAIN National Test House, Calcutta DR J. RAJARAM Essen & Company, Bangalore

SIIRI R. VISWANATHAN ( Alternate ) SEIRI N. I’. SARNAlK India Security Press, Nasik Road

SHRI GANCJA PRAKASH ( Alfernatc ) SARI V. N. SEHQAL Central Forensic Science Laboratory, New Delhi

SRRI M. K. JA~N ( Alternate ) SERI S. K. SRIVASTAVA Coates of India Ltd, Calcutta

DR C. S. CHADHA ( Alternate ) SHRI S. VENKATARAMAN Indian Duplicator Co Ltd, Calcutta

SHRI A. K. SEN GUPTA ( Alternate i SHRI SATISH CHAXDE~, Director General, IS1 (Ex-ejicio Member)

Director (Chem ) Secretary

SHRI S. ARAVAMUDHAN Joint Director ( Chem ), IS1

Panel for Carbon Papers and Typewriter Ribbons, CDC 13 : P 2

Convener

SARI H. MIT&A Controller of Stationery, Calcutta

Members

SHIlI B. N. AGAltwAL Carona Industries, Calcutta SHRI S. K. AQARWAL ( Alternate )

SHRI DLEPATC A~ARW~L Sundar Enterprises, Calcutta SHRI A. SAINI ( Alternate )

SHRI S. CHANNIAH Associated Duplicator Company Pvt Ltd, Bangalore

SIIRI P. N. GANDHI Kores ( India ) Ltd, Bombay DR T. R. BHAMB~ANI ( Alternate )

SHIU S. C. JAIN Pamwi Speciality & Tissue Papers Ltd, Bombay SHRI P. S. ROY ( Alternate )

SHRI V. MANARTALA Remington Rand of India Ltd, Calcutta SHRI S. N. GHOSE ( Alternate )

SHRI P. B. MUNDAS Tribeni Tissues Ltd, Calcutta SHRI P. PURKAYASTHA ( Alternate )

( Continurii on 1 age 13 1

2

IS : 11306 - 1985

Indian Standard SPECIFICATION FOR

TELEPRINTER RIBBON, COTTON

0. FOREWORD

0.1 This Indian Standard was adopted by the Indian Standards Institution on 21 March 1985, after the draft finalized by the Inks and Allied Products Sectional Committee had been approved by the Chemical Division Council.

0.2 In preparation of this standard, assistance has been derived from S/T&l05 C Specification for teleprinter ink ribbons, prepared by the Posts & Telegraph Department, Government of India; and OIL/PROV/POC and AL/CS/7510/104 prepared by the Ministry of Defence, Government of India.

0.3 For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test or analysis, 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 prescribes the requirements and the methods of sampling and test for inked ribbon of cotton fabric for use on teleprinters.

2. TERMINOLOGY

2.1 For the purpose of this standard, the definitions given in IS : 4395-19671_ shall apply.

3. TYPES

3.1 There shall be two types of inked teleprinter ribbons, namely:

a) Type 1 - Single colour ( black, purple, blue and red); and

b) Tyype 2 - Bi-colour ( black and red or blue and red ).

*Rules for rounding off numerical values ( revised).

tGlossary of terms relating to inks and allied industries.

3

IS : 11306 - 1985

3.1.1 In case of bi-colour ribbons half of the width shall have one colour either black or blue and the other half shall be red colour.

4. REQUIREMENTS

4.1 Description -The inked teleprinter ribbon shall be manufactured by inking the cotton fabric evenly in a manner so as to yield clear and legible print on the paper. The ribbon shall have good print life and shall show gradual loss of density of impression.

4.1.1 Printing Work-The print work shall be well defined and clean when printed on teleprinter machine. The paper shall not get soiled with the ink of the ribbon. There shall be gradual and not abrupt loss of distinctness of the print work when repeated at the same place. There shall be no evidence of filling of types.

4.2 The teleprinter ribbon shall be of heavy inking type, the inking shall be uniform and shall adhere to the fabric.

4.3 Cotton Fabric-The fabric of the ribbon shall be capable of withstanding sufficient wear and high pounding pressure. The ribbon cut from the woven fabric, shall have uniform edges and suitably sealed to prevent fraying of the edges of the inked ribbon.

4.3.1 The basic fabric shall comply with the requirements given in Table 1.

4.3.2 The fabric shall have uniform surface and free from knots, joints, thick spots, thin spots, patches, breaks, broken ends and picks.

4.4 The teleprinter ribbon shall neither break nor the sides of the ribbon give way in normal useful life of the ribbon.

4.5 Dimension - The ribbon shall be of continuous length.

4.5.1 Length - The total length of the ribbon from hook to hook shall be not less than 10 metres.

4.5.2 Thickness - The thickness shall be not more than 0.14 mm.

4.5.3 Width-The width of ribbon for English teleprinter shall be 12.7 mm to 13.3 mm. For Hindi teleprinter it shall be 16.1 mm to 16-7 mm.

4.6 Clasps/Eyelets - The clasps or eyelets shall be provided at 150 mm from each ends of the ribbon. The size of the clasp/eyelets shall be suitable to operate the ribbon reversing mechanism on the machine.

4

IS:11306-1985

TABLE 1 REQUIREMENTS FOR BASIC FABRIC

( Clause 4.3.1 )

REQUIREMENT SL CHARACTERISTIO No.

METHOD OFTEST, REF TO

(1) (2)

i) Yarn count:

Warp

Weft

ii) Ends/cm

iii) Picks/cm

iv) Mass, g/m’

v) Breaking load (on 5il,x 20 cm strip ),

Warp Weft

vi) Scouring IOSS, percent, Max

vii) gH value

viii) Shrinkage, percent, Max ( warpway or weftway )

ix) Absorbency

x) Weave

(3)

81 to 00 83 to 95

51 to 54

55 to 61

90

(4)

- -

IS : 1963-1981*

IS : 1963-1981*

IS : 1964-1970t

370 N ( approx 38 kgf) IS : 1969-1968f:

430 N ( 44 approx kgf)

1 IS: 1383-1977s

5.5 to 7’5 IS : 1390.1983// ( Cold method )

2 IS : 2977-19647

Instantaneous IS : 2369-1967**

Plain Visual

NOTE - Tolerance on requirement against Sl No. (iv) is f 5 percent.

*Methods for determination of threads per unit length in woven fabrics ( second revision ) .

*Methods for determination of weight per square metre and weight per linear metre of fabrics ( .first reoision ) .

SMethods for determination of breaking load and elongation at break of woven fabric ( by constant rate of traverse machine ) (Jirst revision ).

$Method for determination of scouring loss in grey and finished cotton textile materials (first r&ton ).

[Methods for determinatian of pH value of aqueous extracts of textile materials (Jirst revision ) .

aMethod for determination of dimensional charges of woven fibres ( other than wool ) on soaking in water. l *Method[of determination of absorbency of absorbent textile materials (first revision ).

5

IS : 11306 - 1985

4.6.1 Figures 1 to 4 give detaiIs regarding clip,, hooks, inked ribbon with clip, hook and spool and inked ribbon spool hub for guidance.

FIG. 1 CLIP FOR RIBBON REVERSAL

4.6.2 One end of the ribbon shall be fastened to the hook of the metal spool and the remaining length shall be closely wound on it. The ribbon after finish shall not protrude on either side of the spool.

4.7 Performance - When tested as prescribed in Appendix A the impressions from single coloured black ribbon shall not be less than 80 000 per metre on each half of the ribbon width. The impressions from bi-colour ribbon shall not be less than 60 000 per metre for red colour and not less than 80 000 per metre for black colour.

5. PACKING AND MARKING

5.1 Packing - The ribbon shall be supplied in reeling closely wound on metal spool suitably coated against corrosion or as agreed to between the purchaser and the supplier.

5.1.1 Each roll shall be individually packed and sealed. The packing shall be air-sealed. Ten such packages shall be put in cardboard cartons of suitable dimensions and of adequate strength to withstand any transit hazard.

6

I. 1__ -- .

IS : 11306 - 1985

8:0.200 I 3&

_I

1

in

5_* 0.300

TO BE BEN0 6to.300

AFTER ASSEMBLING ON THE RIBBON-

All dimensions in millimetres.

FIG. 2 HOOK FOR RIBBON

7

IS :11306 -1985

I 6.51-0.010 RED WIDTH-

t COLOURS PARTING LINE-’

RED INKING -----

-9

iJLi% CK - -0

HOOK

6001

1

P EGRR”o”u”pE NT

2to.ozo- C

All dimensions in millimetrcs.

FIG. 3 INKED RIBBON WITH CLIPS, HOOK AND SPOOL

8

IS:11306 -1985

0.2R

f i ?-_

FLAT \ SURFACE

__ r I

All dimensions in millimetres.

FIG. 4 HUB FOR INKED RIBBON SPOOL

IS : 11306 - 1985

5.2 Marking-Each package and carton shall be marked with the following information:

a) Name, colour and type of the material;

b) Degree of inking ( heavy );

c) Name of the manufacturer and/or his recognized trade-mark, if any;

d) Date of manufacture; and

e) Lot number in code or otherwise to enable the batch of manufacture to be traced from records.

5.2.1 The material may also be marked with the IS1 Certification Mark.

NOTE - The use of the IS1 Certification Mark is governed by the provisions of the Indian Standards Institution (Certification Marks ) Act and the Rules and Regulations made thereunder. The IS1 Mark on products covered by an Indian Standard conveys the assurance that they have been produced to comply with the requirements of that standard under a well-defined system of inspection, testing and quality control which is devised and supervised by IS1 and operated by the producer. IS1 marked products are also continuously checked by ISI for conformity to that standard as a further safeguard. Details of conditions under which a licence for the use of the IS1 Certification Mark may be granted to manufacturers or processors, may be obtained from the Indian Standards Institution.

6. SAMPLING

6.1 The method of drawing representative sample of the material from a lot, number of tests to be performed and the method of finding out the criteria of conformity of the material to the requirements of this specification shall be as prescribed in Appendix B.

APPENDIX A

( Clause 4.7 )

TEST FOR PERFORMANCE

A-l. PROCEDURE

A-l.1 The ribbon shall be fitted on a teleprinter machine and extra hook attached at such a distance from one end that it brings approximately 30 cm of the ribbon into effective operation by automatic reversal. As a first operation, all letters of alphabet shall be printed without space

IO

I$ : 11306 - 1985

repeatedly till the ribbon completes 25 automatic reversals. The tele- printer shall be stopped for one hour so that the ribbon surface recoups the ink. The operation shall be repeated a second time.

A-1.1.1 The ribbon shall satisfy the requirement of the test if after twentyfifth reversal of the second operation the printed letters exhibit approximately the same depth of hue as in the third reversal of the first operation. In case of doubt about matching tint of ribbon and also good sealing of the edges of the ribbon, one metre effective length of tape as above shall be subjected to 60000 or 80 000 characters as given in 4.7. The last impressions shall be clearly readable. After every 500 characters printing shall be stopped for one hour.

NOTE - During the course of the testing of impressions the normal functioning of the teleprinter machine should not get disturbed due to obstruction caused by fraying of edges of the ribbon.

APPENDIX B

( Clause 6.1 )

SAMPLING OF TELEPRINTER RIBBON, COTTON

B-l. SCALE OF SAMPLING

B-l.1 Lot - In any consignment, all boxes containing teleprinter ribbons of the same type, degree of inking and drawn from a single batch of manufacture shall be grouped together to constitute a lot.

B-1.1.1 For ascertaining the conformity of the lot to the requirements ,of the specification, test shall be carried out separately for each lot.

B-l.2 The number of boxes to be selected from lots of different sizes shall be in accordance with co1 L and 2 of Table 2. From such selected box, two ribbons shall be picked up at random.

B-l.3 The boxes shall be selected at random from the lot. In order to ensure the randomness of selection, random number tables shall be used. For guidance in random selection procedures, IS : 4905-1968” may be used. In case such a table is not available, the following procedure shall be adopted:

‘Starting from any box, count all the boxes as 1, 2, 3... ._.... up to Y and so on, in one order, where r is equal to the integral part of

*Methods for random sampling.

11

IS:11306 - 1985

N,n, Jv being the number of boxes in the lot and II the number of boxes to be selected ( see Table 2 ). Every rth box thus counted, shall be withdrawn till the required number of boxes is obtained.’

From each of the boxes selected, two ribbons shall be picked up at random.

B-2. NUMBER OF TESTS AND CRITERIA FOR CONFORMITY

B-2.1 All the ribbons selected according to B-l.3 shall be tested for cotton fabric ( see 4.3 ), dimensions ( see 4.5 ) and performance ( see 4.7 ). Any ribbon failing to satisfy any of these requirements shall be considered as defective.

B-2.1.1 If the number of defective ribbons is less than or equal to the corresponding number given in co1 4 of Table 2, the lot shall be considered to have satisfied the requirements of the specification.

TABLE 2 SCALE OF SAMPLING AND PERMISSIBLE NUMBER OF DEFECTIVES

( Clausrs B-1.2, B-l.3 and B-2.1.1 )

NUMBER OF BOXES NUMBER OF Boxes ‘TOTAL NUXBER PERMISSIBLE IN THE LOT TO BE SELECTEI) OF RIBBONS TO NUMBER OF

Jv n BESELECTED DEFECTIVE RIBBONS

(1) (2) (3) (4)

2 to 5 2 4 0

6 ,, 50 3 G 0

51 ,, 100 5 10 1

101 ,) 500 10 20 1

501 and above 15 30 2

12

IS : 11306 - 1985

(Contrnuedfrom page 2 )

Members

SHRI R. K. NAQPAL

Repesenting

Bharat Carbon & Ribbon Manufacturing Co Ltd, New Delhi

SHRI SARVESH NARAIN ( Altemafe) SHRI K. L. NARAYANSA Khoday Industries Pvt Ltd, Bangalore

DR C. S. EHATTACHARJEE (Alternate ) SHRI K. PADMANABHAN Hindustan Teleprinters Ltd, Madras

SRRI G. BOOPALACHANDRAN ( Alternate ) SHRI B. B. PAUL National Test House, Calcutta SHRI K. D. PUDUMJEB SHRI M. L. SHAXMA

Pudumjee Pulp & Paper Mills Ltd, Pune Yogirnj Chemical Laboratories, Ludhiana

SHRI V. N. SEHQAL SERI M. K. JAIN ( AIternate )

Central Forensic Science Laboratory, New Delhi

SRRI DHARAM SHEEL Indian Airlines, New Delhi SHRI S. VENKATARAMAN ‘- Indian Duplicator Co Pvt Ltd, Calcutta

SHRI A. K. SEN GUPTA ( Alternate )

13

INTERNATIONAL SYSTEM OF UNITS ( SI UNITS )

Base Units

QPANTITY

Length Mass Time Electric current Thermodynamic

temperature Luminous intensity Amount of substance

Supplementary Units

QUANTITY

Plane angle Solid angle

Derived Units

QUANTITY

Force Energy Power Flux Flux density Frequency Electric conductance Electromotive force Pressure, stress,

UNIT

metre kilogram second ampere kelvin

candela mole

UNIT

radian steradian

UNIT

newton joule watt weber tesla hertz siemens volt pascal

SYBfROL

m

kg s A K

cd mol

SYMBOL

rad sr

SYMBOL

J" W Wb T HZ s V Pa

DEFINITION

1N = 1 kg.m/ss

1J = 1 N.m 1w = 1 J/s 1 Wb = 1 V.s

1T = 1 Wb/ms 1 Hz = 1 c/s (s-1)

1s = 1 A/V 1v = 1 W/A 1 Pa = 1 N/m*