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1、INTERNATIONAL STANDARD IS0 8351-1 First edition 1994-07-l 5 Packaging - Method of specification for sacks - Part 1: Paper sacks Embaliages - Mdthode de spkification des sacs - Partie 1: Sacs en papier Reference number IS0 8351-l :1994(E) IS0 9351-1:1994(E) Foreword IS0 (the International Organizatio
2、n for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical committee has been established has
3、 the right to be represented on that committee. International organizations, governmental and nongovernmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft
4、International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IS0 8351-1 was prepared by Technical Committee lSO/TC 12
5、2, Packaging, Subcommittee SC 2, Sacks. IS0 8351 consists of the following parts, under the general title Packaging - Method of specification for sacks: - Part 7: Paper sacks - Part 2: Sacks made from thermoplastic flexible film 0 IS0 1994 All rights reserved. Unless otherwise specified, no pat-t of
6、 this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case Postale 56 l CH-1211 Geneve 20 l Switzerland Printed in S
7、witzerland ii -,-,- INTERNATIONAL STANDARD 0 IS0 IS0 9351-1:1994(E) Packaging - Method of specification for sacks - Part 1: Paper sacks 1 Scope This part of IS0 8351 provides a checklist for the characteristics of paper sacks to be specified when ordering. These ordering specifications cover the de-
8、 scription of the sack and do not deal with quantitative performance requirements. This part of IS0 8351 is primarily intended for application to the types of paper sacks specified in IS0 6590-l. 2 Normative references The following standards contain provisions which, through reference in this text,
9、 constitute provisions of this part of IS0 8351. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of IS0 8351 are encouraged to investigate the possibility of applying the most recent editions of the st
10、andards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 6590-I :I 983, Packaging - Sacks - Vocabulary and types - Part 1: Paper sacks. IS0 6591-1:1984, Packaging - Sacks - Description and method of measurement - Part 7: Empty paper sacks. 3
11、Method of specification 3.1 General When drawing up the specifications of a paper sack for ordering purposes, customer and manufacturer shall consider each item in the following lists and, where relevant, mutually agree to include them in the ordering specifications at an appropriate level. The form
12、at of the ordering specification shall be agreed upon between the customer and the manu- facturer. 3.2 Description 3.2.1 Sack type 3.2.1.1 Open-mouth - sewn flat; - sewn gusseted; - pasted flat hexagonal-bottom; - pasted flat turn-over-bottom; - pasted gusseted rectangular-bottom; - pasted gusseted
13、turn-over-bottom; - other not specified above. 3.2.1.2 Valved (closed-mouth) - sewn flat; - sewn gusseted; - pasted flat hexagonal-ends; - pasted gusseted rectangular-ends; - other not specified above. IS0 8351-1:1994(E) 3.2.2 lube type - flush-cut; - stepped-end; - notched-end. 3.2.3 Dimensions The
14、 following dimensions, in millimetres, shall be specified in accordance with IS0 6591-1. length of sack, a width of sack, b width of gusset, e width of bottom, c width of valve, g length of valve, f width of valve sleeve, v length of valve sleeve. i length of turn-over, p sewing line distance, verse
15、 edge; IZ, from adjacent sack trans- valve sleeve position, 1: distance between outer- most edge of sack and outermost edge of valve sleeve, measured parallel to the bottom. 0 IS0 - length, in millimetres, where different from other plies (usually when loose or integral tubular); - gusset, in millim
16、etres, where different from other plies (usually when loose or integral tubular); - width, in millimetres, where different from other plies (usually when loose or integral tubular); - heat seal distance, in millimetres, from adjacent sack or thermoplastic ply transverse edge; - skirt length, in mill
17、imetres, only for loose type; - Z-fold; - cuffed or uncuffed. 3.2.5 Perforations - beneath valve: number, size and pattern; - ply: number, spacing, size and location of holes. 3.2.6 Valve/sleeve - - - valve type: simple, reinforced, internal sleeve, ex- ternal sleeve; valve position: i.e. in which c
18、orner of sack; sleeve materials: e.g. kraft, polyethylene-coated kraft, tubular polyethylene. 3.2.7 Longitudinal seam - type: continuous, interrupted or unbonded; 3.2.4 Type of material - overlap width, in millimetres. Each ply shall be specified by type, grammage (in grams per square metre) or thic
19、kness (in mi- crometres), surface treatment e.g. coating type and grammage, antislip type and application method, di- rection of the treatment faces (face in or face out). Thermoplastic film plies, normally an inner ply, shall be specified as follows: - loose or integral; - film type, e.g. PE-LD, PE
20、-LLD, PE-HD, PVDC or WAC; - film state (flat or tubular); - film thickness, in micrometres; - film melt flow index, in grams per 10 min 3.2.8 Pasted closure type - flush-cut bottom: with/without bottom patch and/or bottom cap; - stepped-end bottom: with/without bottom patch and/or bottom cap; - turn
21、-over bottom. 3.2.9 Bottom patch - position: valved end, non-valved end; - material: type and grammage; - dimensions, in millimetres: length, width. -,-,- IS0 8351-1:1994(E) 0 IS0 3.2.10 Bottom cap - position: valved end, non-valved end; - material: type and grammage; - dimensions, in millimetres: l
22、ength, width; - wrap around: yes/no. 3.2.11 Bottom orientation - folded towards sack face side; - folded towards sack back side. 3.2.12 Sewn closures/sewing 3.2.12.1 Type of sewn closure - simple; - taped and sewn (tape under sewing); - sewn and taped (tape over sewing); - taped and sewn and taped (
23、reinforced); - heat-sealed and sewn and taped. 3.2.12.2 Type of stitch - single chain stitch: with/without filter cord; - double locked stitch: with/without filter cord. 3.2.12.3 Type of thread - natural; - synthetic; - blend. 3.2.12.4 Type of filter cord - jute; - paper; - other. 3.2.12.5 Stitch co
24、unt per 250 mm. 3.2.12.6 Tape protrusion from sack edges, in milli- metres. 3.2.12.7 Number of stitches in protruding tape. 3.2.12.8 Tape - material; - colour. 3.2.12.9 Sewing position: top or bottom of sack in relation to print. 3.2.13 Filling aperture (open-mouth sacks only) - knife-cut pattern: n
25、umber of serrations per 100 mm and depth of serrations, in millimetres; - transverse pasting, (yes/no): a) all plies; b) discrete plies; c) longitudinal and horizontal position of paste spots. - thumb cut, yes/no. 3.2.14 Adhesives - longitudinal seam pasting: type, e.g. starch, PVAC; - transverse pa
26、sting: type, e.g. hot melt, CMC; - bottom pasting: type, e.g. resin; - bottom patch and cap pasting: type; - special requirements, e.g. water-resistant, heat- stable, etc. 3.2.15 Printing - ink type, e.g. water-based acrylic, organic pig- ments; - ink colours, e.g. Pantone ref. Nos. - complete descr
27、iption of requirements and position of major elements of print, e.g. face side, back side, gussets, valve end, non-valve end. 3.2.16 Packaging - sacks in bundles: tied/untied/folded; - bundles in bales: total number of sacks per bale; - bundles in palletized units: total number of sacks per unit; 3
28、-,-,- IS0 8351-1:1994(E) 0 IS0 - bundle stacking pattern; - shingled reels: diameter and overlap in millimetres, number of sacks; - pallet size and type, four-way entry/two-way entry; - maximum unit height, in millimetres; - special requirements for automatic packers; - pallet wrapping: plastic, pap
29、er, shrink wrap, stretch wrap, wooden frame or fibre board on top of pallet; - protection from strapping; - labelling of pallet load. 3.2.17 Accompanying documentation - customers specification number; - manufacturers specification number; - delivery address; - invoice address; - other acknowledgement. - pallet strapping: steel, plastic; IS0 8351-1:1994(E) 0 IS0 ICS 55.080.00 Descriptors: packaging, paper packaging, bags, technical data sheets, orders (sales documents). Price based on 4 paaes -,-,-