Tanzania Bureau of Standards

TBS/CDC10 (6437) P3

DRAFT TANZANIA STANDARD

TBS/CDC-10 (6437) P3 THERMAL PAPER ROLLS — SPECIFICATION

TANZANIA BUREAU OF STANDARDS

TBS/CDC10(6437) P3

0 Foreword

This Draft Tanzania Standard is being developed by Stationery and Paper Products Technical Committee under supervision of the Chemical Division Standards Committee and it is in accordance with the procedures of the Bureau.

This Draft Tanzania Standard is the first edition of specification for thermal paper rolls. It specifies requirements for materials, types and sizes.

Thermal paper is mostly used in Electronic Fiscal Printers (EFP) at point of sales (POS) such as restaurants, hotels, gas stations, supermarkets, and for labels, gaming, ticket & tags and other applications of similar nature.

This Draft Tanzania Standard has been prepared with assistance drawn from the following documents:

CKS 612, Paper for offset lithographic printing specification, Published by South African Bureau of Standards.

BS EN 12858, Paper – Printing and business paper -requirements for continuous stationery.

For the purpose of deciding whether a particular requirement of this Tanzania 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 TZS 4 (see clause 2).

TBS/CDC10(6437) P3

DRAFT TANZANIA STANDARD TBS/CDC 10 (6437) P3

Thermal paper rolls – Specification

1 Scope

This Draft Tanzania Standard specifies the requirements, sampling and methods of test of thermal paper rolls.

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.”

TZS 4: Rounding off numerical values

TZS 80: Paper – Sampling methods for testing

TZS 81: Method for the determination of grammage (basic mass)

TZS 82- ISO 187: Paper, board and pulps – Standard atmosphere for conditioning and testing and procedure for monitoring the atmosphere and conditioning of samples.

TZS 83: -ISO 287: Paper and board — Determination of moisture content of a lot — Oven-drying method

TZS 84: Paper and board – Determination of opacity (paper backing) – Diffuse reflectance method

TZS 748-2: - ISO 1924-2, Paper and board — Determination of tensile properties —- Part 2: Constant rate of elongation method (20 mm/min)

TZS 886: -ISO 2470: Paper and board – Measurement of blue reflectance factor (ISO brightness)

TZS 891: -ISO 534: Paper and board — Determination of thickness, density and specific volume

ISO 4046: Paper, board, pulps and related terms- Vocabulary

ISO 5627: Paper and board- Determination of smoothness (bekk method)

ISO 8791-2: - Paper and board - Determination of roughness/smoothness (air leak methods) -- Part 2: Bendtsen method

ISO 2493-1: - Paper and board -- Determination of bending resistance -- Part 1: Constant rate of deflection

ASTM D 6789: standard test method for accelerated light aging of printing and writing paper by xenon-arc exposure apparatus

3 Terms and definitions

For the purpose of this draft Tanzania Standard the following definitions shall apply:

3.1 bursting strength the maximum uniformly distributed pressure, applied at right angles to its surface, that a test piece of paper or board will stand, under specified test conditions.

3.2 chemical when used to describe paper or paper fibres, denotes a derivation from chemical pulp.

3.3 chemical pulp defined as in ISO 4046, but with the provision that it may contain at most 5 % by mass of mechanical pulp.

3.4 defective thermal paper rolls that fails in one or more respects to comply with the relevant requirements of this specification.

3.5 grammage the mass of unit area of paper or board determined by the specified method of test and expressed in grams per square meter.

3.6 mechanical when used to describe paper or paper fibres, denotes a derivation from mechanical pulp.

3.7 lot at least five containers or packets containing nominally identical thermal paper rolls, or at least five.

3.8 wood-free paper or board paper or board having in principle only chemical pulp in its fibre composition; in practice, however, it may accidentally contain a small amount of other fibres or pulps.

3.9 Thermal paper heat sensitive paper used in thermal printers which is coated on one side or both sides with a heat sensitive coating material.

3.10 Ageing the process of growing old, about three years.

4 Requirements

4.1. General requirements

4.1.1 The base paper shall be manufactured from bleached chemically processed cellulose fibres or recycled fibres (or both) or any other material that will ensure compliance with the requirements given in Table 1.

4.1.2 The paper shall be of type 1, type 2, type 3, type 4, type 5, type 6 or type 7 as specified by the supplier.

4.1.3 The thermal paper shall be capable to withstand temperature between 100C to 600C. It shall be coated on one side or both sides with a heat sensitive coating material.

4.1.4 The colour of the base paper and of the coating shall be an acceptable white unless otherwise specified.

4.1.5 The papers shall be free from tears, holes, dust, wood splinters, blemishes, slime spots, creases and other visible defects and shall be uniform in texture.

4.1.6 The paper shall be machine finished on both sides and shall be reasonably free from all defects specified in clause 4.1.5 that may impair its serviceability.

4.1.7 The thermal paper shall be heat, moisture and light resistance and shall comply also with requirements set out in table 1.

4.2 Specific requirements

4.2.1 The physical and chemical properties of thermal paper rolls shall comply with the requirements set out in Table 1.

4.2.2 The type of thermal paper rolls shall be such that optical density, image density and image life under proper storage conditions are visible for 3 years minimum without disappearing.

Table 1 – requirements of thermal papers rolls

Property Requirement Method of test (see clause 2) Paper Type Type 1 Type 2 Type 3 Type 4 Type 5 Type 6 Type 7 ISO 9184- 3 Grammage g/m2, 40 -48 44 - 52 51- 59 54 - 62 61- 69 64 - 72 72- 82 TZS 81 Brightness, % min. 80 TZS 886

Moisture content, % 5.0 - 6.5 wood free TZS 83 5.5 - 7.5 wood containing Bendtsen Roughness, 150 to max. 500 ISO 8791- mL/min 2 Relative humidity (RH) 40 – 55% at 19 0C to 23 0C - inside the packaging Tensile strength (MD), 40 42 45 48 55 55 55 TZS 748- N/15 mm, Min 2

Stiffness report ISO 2493 >1.33 Light resistance, 5,000 Lux, 24h Optical Heat density resistance, before 60 0C/ aging 24h Moisture resistance, 60 0C/90% R.H/ 24h ASTM D Light >1.25 6789 resistance, 5,000 Lux, 24h Heat Optical resistance, density 60 0C/ after aging 24h Moisture resistance, 60 0C/90% R.H/ 24h Thickness, micron 44- 54 50 - 60 55 - 65 60 -70 68 - 78 69-79 80-90 TZS 891 Brightness, Before 75 TZS 886 % min. aging After aging 60 Smoothness, coated 375 300 250 250 220 220 200 ISO 5627 side, sec, min

4.3 End-of-roll-marker

4.3.1 End-of-roll marker requirements shall be specified by the client. If a warning mark is required, it shall be readily visible, but not so that it would render any recorded image unreadable.

4.3.2 It shall not leave a residue on, or cause damage to, the thermal head of a thermal printer. When measured it should conform to 5.6.

5.Dimensions

5.1 Dimensions shall be specified by the client. Thermal paper rolls shall in all cases be described as follows:

5.1.1 Length based dimensions shall be as

Width (W) × Length (L) × Core (C, C)

Where

W is the nominal width of the roll, measured in millimeters

L is the nominal length of paper roll, measured in meters

C, C is the nominal inside diameter of the core on which the paper is wound, and is in millimeters expressed to a single decimal

5.1.2 Diameter based dimensions shall be as

Width (W) × Diameter (D) × Core (C, C) where

W is the nominal width of the roll, measured in millimeters

D is the nominal diameter of the roll, measured in millimeters

C, C is the nominal inside diameter of the core on which the paper is wound, in millimeters expressed to a single decimal.

5.1.3 Thermal paper rolls for electronic tax register (ETR) and electronic fiscal printer (EFP) shall be not less than 30 meters in length.

5.1.5 Thermal paper rolls for electronic signature devices (ESD) shall be not less than 20 meters in length.

5.1.6 Thermal paper rolls for electronic fuel pump printer (EFPP) shall be not less than 50 meters in length.

5.1.7 The fiscal paper roll width shall not be less than 57 millimeters for ETR, EFP and ESD

5.1.8 The fiscal paper roll width shall be between 40- 80 millimeters for EFPP.

5.2 Dimensional tolerances

5.2.1 The specified dimensions when measured in accordance with clause 5.3 to 5.5. inclusive, shall conform to the appropriate tolerances given in tables 2 and 3 when inspected.

Table 2 -Dimensions relating to length-based rolls

1 2 3

Dimension Requirement Tolerance

Length of roll, Nominal, m L

Length of roll, Actual, m L − 0.2

Diameter of roll, mm, max D (user specified)

-1 to 0 Width of roll, Overall, mm W

-1 to 0 Width of paper web on roll, mm W

Inside diameter of core, mm C, C -0.5 to 0

Table 3 -Dimensions relating to diameter-based rolls

1 2 3 Dimension Requirement Tolerance

Diameter of roll, Nominal, mm D −

Diameter of roll, Actual, mm D ± 1.5

Length of roll, m, min L (user specified) –

−1 to 0 Width of roll, Overall, mm W

–1 to 0 Width of web paper on roll, mm W

– 0.5 to 1 Inside diameter of core, mm C, C

5.3 Styles and roll construction

5.3.1 The web paper shall be evenly, squarely and tightly wound on the core. The coated side (thermo sensitive surface) of the web shall be on the outside of the roll.

5.3.2 The web shall have smooth cut edges, and the roll shall be so wound as to give smooth end-faces that are free from dust and loose fibres and debris.

5.3.3 The length of the core shall not exceed the nominal width of the paper roll nor shall the core be recessed from either end-face of the roll by more than 1.5 mm.

5.3.4 The free (outer) end of the paper shall be attached to the roll with glue, a small self- adhesive tape or sticker or other acceptable sealing methods.

5.3.5 Measure, to the nearest 0.5 mm by a suitable caliper, the overall width of the roll and its core on each of five rolls of the sample and report any measurement that fails to comply with the requirements of clause 5.3.3.

5.4 Core of thermal paper roll

5.4.1 The core shall be of a material that is suitable for the purpose and such that the core will not deform or collapse under normal conditions of handling, transportation, storage and usage.

5.4.2 The core shall have a wall thickness of maximum 2 mm.

5.4.3 The core inside diameter shall be specified by the client. thermal paper rolls without the core shall comply with all the requirements specified in clause 4.

5.4.4 The internal diameter of the core when measured to the nearest 0.2 mm, of each of at least five rolls of the sample and report any measurement that fails to comply with the requirements of clause 5.

5.4.5 The length of the core when measured to the nearest 0.2 mm, the length of the core of each of at least five rolls of the sample and report any measurement that fails to comply with the requirements of clause 5.3.3.

5. 5 Web paper on roll

5.5.1 Measure length to the nearest 0.1 m, the length of the paper web on each of five rolls of the sample. Report the average of the readings and check for compliance with clause 5.

5.5.2 Measure width to the nearest 0.2 mm, the width of the paper web on each of five rolls of the sample. Report the average of the readings and check for compliance with clause 5.

5.5.3 The web paper on all rolls shall be free from breaks and splices.

5.5.4 The inner end of the web paper shall be free when the last of the paper is pulled from the roll and should not be fixed to the core.

5.6 End-of-roll marker

5.6.1 Measure,

a) to the nearest 2 mm, the width of the end-of-roll marker, and

b) to a minimum of 200 mm, the distance of the end-of-roll marker from the end of the web, and

c) to a minimum of 200 mm, the length of the end mark. on each of at least five rolls of the sample and report any measurement that fails to comply with the requirements of 4.3.

6 Sampling and Criteria for conformity

6.1 Sampling methods shall be carried out as prescribed in TZS 80

6.2 All the thermal paper rolls in the sample shall be examined for various requirements and any thermal paper roll failing to satisfy one or more of the requirements shall be termed as defective.

6.3 The lot shall be accepted as conforming to the requirement of this specification if the number of defective articles does not exceed the permissible number of defectives given in sampling methods as prescribed in TZS 80.

7 Packaging and marking

7.1 Packaging

7.1.1 Thermal paper rolls shall be packed in an upright position (chimney stacked) in corrugated board packages that are rigid enough to prevent damage to the contents during handling, transportation and storage of the products.

7.1.2 The thermal paper rolls shall be supplied in packages, containing of the same type and size. Each package shall be wrapped in paper to protect the thermal paper rolls from damage during handing, transportation and storage of the products.

7.1.3 The package shall be of such quality and strength as to prevent bursting, tearing, distortion or opening- up from the weight of thermal paper rolls.

7.2 Marking

7.2.1 Each package shall be legibly and indelibly marked with the following:

a) the manufacturer's name or trademark, or both; b) the name of the product i.e. Thermal paper rolls (for example. W × L × D × C, C (whichever is applicable)); c) the paper grammage (actual); d) the nominal length and nominal width of the paper web for length-based rolls; e) the nominal width, nominal diameter and minimum length of the paper web for diameter- based rolls; f) the internal diameter of the core; g) the date of manufacture of the rolls; and h) the number of rolls per package. i) batch number or code number j) country of origin k) unique security feature

7.2.2 Each Thermal paper roll shall be legibly and indelibly marked as agreed between the client and the supplier: