Some standard content:
GB/T 17858.1—1999
This standard is equivalent to ISO6590-1:1983 "Terms and types of packaging bags - Part 1: Paper bags". The Chinese name of this standard is not directly translated from ISO6590-1:1983, but is determined as "Packaging terminology - Industrial packaging bags - Paper bags".
Appendix A and Appendix B of this standard are both indicative appendices. This standard was proposed by China National Packaging Corporation. This standard is under the jurisdiction of the National Technical Committee for Packaging Standardization, Bags Technical Committee (CSBTS/TC49/SC2). The drafting units of this standard are: Standardization Research Institute of the State Bureau of Building Materials Industry, Fuzhou Hongyu Packaging Industry Co., Ltd. The main drafters of this standard are: Li Jinping, Wang Qiaoyun, Fang Derui, Gan Xiangchen, Lin Owen, and Wei Zhihua. This standard is entrusted to the National Technical Committee for Packaging Standardization, Bags Technical Committee for Packaging Standardization to be responsible for interpretation. 134
GB/T17858.1—1999
ISO Foreword
ISO (International Organization for Standardization) is a worldwide federation of national standardization organizations (ISO member states). The work of formulating international standards is usually carried out by ISO technical committees. For the professions for which technical committees have been established, each member country has the right to participate in its technical committee if it is interested in it. Official and unofficial international organizations that cooperate with ISO may also participate in its work. The draft international standards voted by the technical committees should be circulated among the member states for approval before being formally accepted as international standards by the ISO Council.
International standard ISO6590-1 was formulated by ISO/TC122 Packaging Technical Committee and circulated to member states in June 1982. This standard has been recognized by the following member states:
Australia
Jamaica
Austria
Belgium
Former Federal Republic of Germany
Romania
No member state has objected to this standard. Canada
Hungary
Malaysia
Turkey
Spain
Ireland
New Zealand
Former Yugoslavia
1 Scope
National Standard of the People's Republic of China
Packaging Terms
Industrial Packaging Bags
PackagingSacks-Vocabulary and types--Paper sacks This standard specifies the terms and types of paper bags for industrial packaging. GB/T 17858. 1-1999
idt ISO 6590-1:1983
This standard applies to single-layer or multi-layer industrial packaging bags made of paper, and does not apply to retail commodity packaging bags. Note: GB/T17858.2 specifies the terms related to thermoplastic soft film bags. 2 General terms
2.1 Paper sack
A packaging container made of one or more layers of flat paper sheets with at least one end closed, which can also be composited with other tough materials to achieve the performance required for filling and goods circulation. Note
1 Hereinafter referred to as "".
2 In order to meet certain specific requirements, it is necessary to limit the size of paper bags. The circumference of the bag sheet should not be less than 550 mm. 2.2 Ply
A layer of paper or other tough material that constitutes the bag wall, or a layer of these materials composited. 2.3 Gusset
A folded portion inserted into the longitudinal edge of a bag or sack. 2.4 Tube
A flat tube or sack cut into a predetermined length and consisting of one or more layers. 2.4.1 Flat tube
A flat tube consisting of flat tubes only without any folded portion inserted. Gusseted tube
A flat tube or sack having a folded portion inserted into the longitudinal edge. 3 flush cut tube (flat or gusseted) 2.4.3
A tube with all layers cut into a predetermined length, see Figure 1. 2.4.4 stepped end tube (flat or gusseted) A tube with all layers cut into a predetermined length and with all layers arranged in steps at the cut, see Figure 2. 2.4.5 notched end tube (flat or gusseted) A tube with all layers cut into a predetermined length and with one end in a semi-grooved shape, see Figure 3. 2.5 sewing; stitching A method of combining several layers of packaging materials with needle and thread. Note: In bag processing, it usually refers to bottom sewing, that is, one or both ends of the tube are closed by sewing and then using a bottom sealing tape (optional) (see 4.2.2).
2.6 Adhesive bonding; Pasting Approved by the State Administration of Quality and Technical Supervision on September 7, 1999 136
Implemented on February 1, 2000
GB/T 17858.1—1999
Method of bonding two adjacent layers of packaging materials together by adhesive. Figure 1 Flat-cut bag tube
2.6.1 Jongitudinal seam Step-cut bag tube
Use adhesive to bond the longitudinal overlapping parts of each layer together. Note: This bonding can be continuous or discontinuous. 2.6.2 Transverse pasting Use adhesive to bond the layers together at one or both ends of the bag tube Figure 3 Half-groove-cut bag tube
Note: Transverse bonding helps the front and back panels of the bag to be easy to open during processing and final use, and can increase the strength of certain types of bags. Bottom pasting
Use adhesive to close one or both ends of a bag. Note: Before closing, the ends should be folded and/or formed into appropriate shapes. 2.7 Heat sealing Welding Joining together by heating.
2.8 Overlap
The part where the bag or layers overlap.
Longitudinal overlap The part where the longitudinal edges of each layer overlap.
2.8.2 Bottom overlap
The part where the transverse edges of the bag overlap when forming the bottom. 2.9F
Valve
An opening used to fill the bag and prevent the contents from flowing back after filling, usually located in a corner of the bag. 3 Bag type
See Table 1 for the classification of bag types.
Table 1 Bag type classification
Sewn bag 1
Bonded bag 1
Open bag
Flat edge bag
Gleated bag
Hexagonal bottom flat edge bag
Flip bottom flat edge bag
Rectangular bottom edge bag
Flip bottom pleated bag
Valve mouth closed bag
Gleated edge
Hexagonal flat edge
Hexagonal end pleated edge
1) The various types of bags may include various combinations of both bonded and heat-sealed ends. This type is not listed in the above table. Please refer to the "Note" in 3.6.3.
3.1 Flat sack
Bags made from flat sacks.
3.2 Gusseted sack
A sack made from gusseted sacks.
sewn sack
sewn sack
GB/T 17858.1—1999
A sack closed at one or both ends by continuous transverse sewing. 3.4 Pasted sack
A sack closed at one or both ends by gluing. 3.5 Open mouth sack
A sack closed at only one end.
3.5.1 Flat-edge sewing of open mouth-sewn-flat sack The flat-edge sack is sewn with thread continuously transversely to make one end of the flat-edge sack closed, see Figure 4. 3.5.2 Gather sewing of open mouth-sewn-gusseted sack The gusset sack is sewn with thread continuously transversely to make one end of the flat-edge sack closed, see Figure 5. 3.5.3 Open mouth-pasted-flat hexagonal bottom sack is a flat-edged bag that is folded and glued to close one end and form a hexagonal shape, see Figure 6. Figure 4 Open sack with flat edges sewn
Figure 5 Open sack with pleats sewn
Figure 6 Open sack with hexagonal flat edges bonded
open mouth-pasted-flat turn over bottom sack3.5.4
Open sack with turned-over bottom flat edges bonded
A flat-edged sack with one end closed after being turned over and bonded (usually called extruded type), see Figure 7. 3.5.5 Open sack with rectangular bottom edges bonded open mouth-pasted-gusseted rectangular bottom sackA pleated sack with one end closed and rectangular after being folded and bonded (usually called self-opening type), see Figure 8. 3.5.6 Open sack with turned-over bottom edges bonded
open mouth-pasted-gusseted turn over bottom sackA pleated sack with one end closed after being turned over and bonded (usually called extruded type), see Figure 9. Figure 7 Open sack with flat edges glued to the bottom Figure 8 Open sack with rectangular bottom edges glued to the bottom 3.6 Valved sack
A sack with both ends closed except for the valve port. 3.6.1 Valved-sewn flat sack A sack with flat edges closed by continuous transverse stitching, see Figure 10. 3.6.2 Valved-sewn-gusseted sack A sack with gussets closed by continuous transverse stitching, see Figure 11. Figure 9 Open sack with gussets glued to the bottom
3.6.3 Valved-pasted-flat hexagonal ends sack A sack with flat edges closed by folding and gluing, see Figure 12. Wide mouth
Figure 10 Flat-edge sewn valve sack
Figure 11 Gleam-sewn valve sack
Figure 12 Flat-edge sewn valve sack with hexagonal ends Note: Various types of valved-pasted-sewn flat sacks with one hexagonal end can be used, for example, a valved-pasted-sewn flat sack with one hexagonal end: that is, one end is closed by continuous transverse sewing with thread, and the other end containing the valve is folded and bonded to form a hexagonal flat sack, see Figure 13: 138
GB/T 17858.7-1999
Flat-edge glued-sewn valve sack with one hexagonal end
Figure 14 Rectangular end gleam-sewn valve sack
3.6.4 Rectangular end gleam-sewn valve sack Sack is a pleated bag with closed ends and rectangular shape (usually called self-opening type) after folding, forming and gluing, see Figure 14. 4 Structural description
Different bag-making processes can be used to produce and process bags. 4.1 Basic sewing types
4.1.1 Chain stitch-single thread A method of sewing with one thread. This method is to pass the needle through the bag tube to form loops, and each loop is locked by the previous loop, see Figure 15.
4.1.2 Double locked stitch-dauble thread sewing A method of sewing with two threads. This method is to pass the needle through the bag tube to form loops, and each loop is locked by a transverse circle formed by another thread, see Figure 16.
Suture
Line Diagram
Figure 15 Chain suture - single line suture
4.2 Suture closure and associated auxiliary materials
4.2.1 Filter (filler) cord Closure
Ring closure
Figure 16 Double lock suture - double line suture
A length of suitable material such as jute rope, inserted into the suture to seal and cushion the needle holes. 4.2.2 Capping tape (insewn sacks) Tape of paper or other tough material applied to the transverse edges of a sack, through which or under which the suture can be applied. 4.2.3 Simple sewn closure The bag is closed with sewing only, see Figure 17. 4.2.4 Taped and sewn closure (tape under sewing) The backing tape with or without lining is attached to the end of the bag with adhesive (or without adhesive), and the sewing is then passed through the tape, see Figure 18.
4.2.5 Sewn and taped closure (tape over sewing) The sewing with or without lining is covered with backing tape and fixed with adhesive or heat, see Figure 19. @
1—bonding: 2—bag wall; 3—glue
1—sewing: 2—bag wall
Figure 17 Simple sewing closure
Tape; 4—string: 5—adhesive
Figure 18 Taping-sewing closure
1—sewing; 2—bag wall;
3—tape #5-adhesive
Figure 19 Sewing-taping closure
4.2.6 Taped and sewn and taped closure (reinforced) Attach the backing tape to the end of the bag, then pass through the tape with (or without) lining rope for sewing, and then use another sheet of backing tape 139
GB/T 17858.1-1999
The tape is pasted on the seam and fixed with adhesive or heat sealing, see Figure 20. 4.2.7 Heat sealed and sewn and taped closure Heat the plastic film of the inner layer of the bag to seal it together, then sew the two heat-sealed parts or only the outer part, cover it with bottom sealing tape, and fix it with adhesive or heat sealing, see Figure 21. 4.3 Adhesive closure and corresponding auxiliary materials
4.3.1 Bottom cap
The paper strip glued to the bottom of the bag.
1 Bonding: 2-bag wall: 3-tape; 5 adhesive Figure 20 Tape-sewn-tape closure (enhanced) 4.3.2 Bottom patch
The paper strip glued to the bottom of the bag.
4.3.3 Pasted clasure
The bag is closed only with adhesive.
1—sewing; 2—bag wall, 3—tape; 6—heat sealing Figure 21 Heat sealing-sewing-tape closure
Flush cut bottom with ar without bottom cap4.3.4
One or both ends of the flush cut bag, fold all its layers down and glue them all down, then cover with (or without) bottom cap, see Figure 22.
4. 3. 5 Stepped bottom with ar withaut bottom capOne or both ends of the stepped bag, fold all its layers down and glue them together at the step, then cover with (or without) bottom cap, see Figure 23.
2--Bag wall; 5--Heat seal; 7--Bottom cover
Figure 22 Flat bottom with (or without) bottom cover 4.4 Valve type
4.4.1 Valve sleeve
2--Bag wall; 5--Heat seal, 7--Bottom cover Figure 23 Stepped bottom with (or without) bottom cover A sleeve made of paper, other tough materials or a composite material of these materials can be inserted into the valve to improve its performance. 4.4.2 Valve in sewn bag
Simple valve simplevalve
Fold a corner of the bag into the bag, so that the sewn bag forms a valve, see Figure 24. Internal sleeve valve4.4.2.2
Valve port with sleeve extending into the bag, see Figure 25. 4.4.2.3 External sleeve valve Valve port with sleeve protruding out of the bag, see Figure 26. 140
Figure 24 Simple valve port
4.4.3 Valve port in paste bag
GB/T 17858.1--1999
Figure 25 Internal sleeve valve port
Note: In some cases, the width of the sleeve should be less than the bottom width. 4.4.3.1 Simple valve port Simple valve
Valve port without sleeve or reinforcement structure, see Figure 27. , reinforced valve4. 4. 3. 2
Figure 26 Jacket type valve pocket
A valve port formed by gluing a plate of suitable material on the inner upper part of the valve port to enhance its strength, see Figure 28.4. 4. 3. 3
Internal sleeve valveinternal sleeve valveThe valve port with the valve sleeve extending into the bag, see Figure 29.4.4.3.4 External sleeve valveThe valve port with the valve sleeve protruding outside the bag is usually equipped with a small bag, see Figure 30. Figure 27 Simple valve
4.5 Other structural descriptions
Figure 28 Enhanced valvewwW.bzxz.Net
4.5.1 Thumb cut
Figure 29 Inner sleeve valve
Figure 30 Outer sleeve valve
A small opening that penetrates all layers on the top side of the open bag (or in the outer valve sleeve) to help open the bag before filling. Closing device
A special device set on the bag to help close it after filling. 4.5.3 Opening device
A special device set on the bag to help open it again after filling and closing. Carrying device
A special device set on the bag to help transport. Yielding device (window) 4.5.5
A transparent area set on the front of the bag to help observe the contents. Perforation
Hole penetrating the bag wall or individual layers, through which air can escape when the bag is filled. Anti-slip treatment
A treatment measure in which a film is added to the bag or a material is coated on the outer surface of the bag to increase the friction coefficient between the bags. Porosity reduction treatment4.5.8
A treatment measure in which a material is coated on a specified part of the outer surface of the bag to restrict the passage of air, thereby facilitating the operation of the vacuum bag opening device.
5 Materials
Paper bags can be produced from a variety of different raw materials, depending on the performance requirements of the bag. 5.1 Sack paper
Paper with high mechanical strength as the basic raw material in bag processing. 141
GB/T 17858.1—1999
The current production process uses kraft paper. Sack paper can be produced from several papers (different raw materials, expansion rate, tremolo and wet strength, etc.) at the same time.
5.2 Types of sack paper
Sack paper can be given different properties, for example: 5.2.1 Normal (flat) sack paper is sack paper produced without any additional treatment to improve the stretch properties. 5.2.2 Extensible sack paper is sack paper with improved stretch properties. 5.2.2.1 Microcreped sack paper is sack paper that has been longitudinally compressed and no longer has visible wrinkles. 5.2.2.2 Lowstretchcreped sack paper (lightcreped) is sack paper produced by slightly soaking and creasing the paper, which is usually done on a paper machine. 5.2.2.3 Creped sack paper is sack paper produced by soaking and creasing the paper, which is usually not done on a paper machine. 5.3 Paper Bag Color
The color of paper bags varies with the color of the pulp used in the production of paper and the colorant added. 5.3.1 Unbleached
5.3.2 Semi-bleached
5.3.3 Fully bleached
5.3.4 Coloured
5.4 Wet Strength Sack Paper
Wet Strength Sack Paper
Sack paper produced after the paper is treated to reduce the loss of strength when soaked. 5.5 Other Tough Materials
In addition to paper, the following materials can also form part of the paper bag. 5.5.1 Plastics films
Plastics in the form of sheets or rolls.
5.5.2 Other Materials Textiles, non-woven fabrics, foils and other mesh materials suitable for use as a layer in a paper bag. 5.6 converted materials Paper or other ductile materials whose properties have been modified, for example by coating or laminating, to obtain the desired special properties. Barrier coated papers 5.6.1
Paper coated with a barrier material (e.g. polypropylene) on one or both sides. Release coated papers 5.6.2
Paper coated with a release material (e.g. siliconized) on one or both sides. 5.6.3 impregnated papers Paper treated with a material (e.g. paraffin) that can be absorbed by the paper. 5.6.4 laminated materials Two or more layers of paper and/or other materials (e.g. plastic) are combined to form a substantially continuous layer. 5.6.5 reinforced materials Paper reinforced with threads or cloths, etc., to improve its mechanical strength. 5.7 auxiliary materials
In the processing of paper, some materials can be used as auxiliary materials. 5.7.1 Sewing thread
GB/T 17858.1—1999
Threads used to sew bags to close them. These threads can be made of natural or synthetic fiber materials, or a composite material of the two.
5.7.2 Adhesive
Adhesive
Adhesive materials used in bag processing. They can be made of natural or synthetic materials, or a mixture of the two. For example: starch adhesive, cold-use polyurethane and hot-melt materials based on polyethylene for hot use. 6 Names of bag parts
The following expressions help to identify the various parts of the bag: Filling end
The end with an opening or a valve.
6.2 Closed end
The end that is joined together or without a valve.
6.3 Face side
The side without a longitudinal seam.
6.4 back side
The side with the longitudinal seam.
The left and right sides of the bag are defined as follows: the back side is placed downwards with the top farthest from the observer. 143
Semi-bleached
GB/T 17858.1—1999
Appendix A
(Suggested Appendix)
Chinese Pinyin Index
Sewn Bag·
Half-grooved Cut Bag Cylinder (Flat Edge Bag Cylinder or Pleated Bag Cylinder) 2.4.5 Back
Border Tao·
Pleated Bag·
Pleated Bag Cylinder
Pleated Sewn Valve Bag
Pleated Sewn Open Bag
Colored·
Laminated Material·
Lining (Filling) Rope
Stepped Bottom with (or Without) Bottom Cover·
Flat Cut Bottom with (or Without) Bottom Cover·
Low-stretch Wrinkled (Slightly Wrinkled) Paper Bag Paper.
Bottom overlap
Bottom bonding·
Bottom lining·
Bottom cover·
Stapling·
Valve mouth·
Valve bag
Anti-slip treatment
Flip bottom hem pleat glued open bag
Flip bottom flat edge glued opening
Closed end
Bottom sealing tape (in sewn bag)·
**.-. 3. 6.2
.·.5.2.2.2
Suture-tape closure (tape on top of suture)·4.2.5 Suture
Modified material·
Isolation coated paper
Closing device
Observation window·
Observation device
Transverse bonding
Flapping·
Simple valve port·
Simple suture closure
Void reduction treatment
4. 4. 2. 1,4. 4. 3. 1
.. 4.5.8
Taping-stitching closure (tape under stitching) 4.2.4 Taping-stitching-taping closure (enhanced) 4.2.6 Step-cut bag tube (flat-edge bag or side bag tube) ·2.4.4 Impregnated paper
Rectangular bottom pleat glued open bag
Rectangular end pleat glued valve bag
Open bag·
Opening device·
Chain stitching-single-line stitching
Hexagonal bottom flat edge glued open bag·
Hexagonal end flat edge glued valve bag
Inner sleeve valve port
.. 5.6.3
+.*. 3.5. 5
4. 4. 2.2;4. 4.3. 3
Bonded bag
Bonded closure．
Adhesive
Flat-edge bag·
Flat-edge bag sleeve·
Flat-edge sewn valve bag·
Flat-edge sewn open bag
Flat-cut bottom (with or without bottom cover)
GB/T 17858.1—1999
.*.3.5.1
Flat-cut bag tube (flat-edge bag sleeve or pleated bag sleeve) 2.4.3 Ordinary (smooth) paper bag paper...
Other materials
Air hole·
Fully bleached·
Heat seal·
Heat seal-sewing-tape adhesive closure
Stretchable paper bag paper
Wet strength paper bag paper·
Double lock stitching-double stitching
adhesive
adhesive bonding
anti-slip treatment
back side
barrier coated papers
bottom cap
plastic film
filling end·
jacketed valve port,
micro-crepe sack paper
unbleached·
4.4.2.3,4.4.3.4
flat-edged glued-sewn valve bag with hexagonal end.3.6.3
carrier
front·
reinforced valve port
reinforcement material·
sack paper…
longitudinal seam…
longitudinal overlap
crepe sack paper…
barrier coated paper·
Appendix B
(suggestive appendix)
English index
..2.6.1
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