GB/T 10457-2021_English: PDF (GB/T10457-2021)
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General requirement of plastic self-cling wrap film for keeping food fresh
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[GB/T 10457-2009] Plastic cling wrap film for keeping fresh of food
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Cling wrap polyethylene film for keeping fresh of food
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| Standard ID | GB/T 10457-2021 (GB/T10457-2021) | | Description (Translated English) | General requirement of plastic self-cling wrap film for keeping food fresh | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Y28 | | Classification of International Standard | 83.140.01 | | Word Count Estimation | 11,153 | | Date of Issue | 2021-10-11 | | Date of Implementation | 2022-05-01 | | Older Standard (superseded by this standard) | GB/T 10457-2009 | | Drafting Organization | Light Industry Plastics Processing and Application Research Institute of Beijing Technology and Business University, Top Daily Chemicals (China) Co., Ltd., Shenzhen Wandajie Environmental New Materials Co., Ltd., Enxiai (Hangzhou) Film Co., Ltd., Riken Food Packaging (Jiangsu) Co., Ltd., Jilin Zhongyi Biodegradable Material Technology Co., Ltd., Guangzhou Chuntai Paper Plastic Products Co., Ltd., Guangdong Guangxing Wanhe Paper Plastic Co., Ltd., Cangzhou Jinsanyang Plastic Industry Co., Ltd., Guangdong Chongxi Environmental Protection Technology Co., Ltd., Nanya Plastic Industry (Nantong) Co., Ltd., Dalian Sanrong Chemical Co., Ltd., Beijing Product Quality Supervision and Inspection Institute, National Plastic Products Quality Supervision and Inspection Center (Beijing), Chongqing Lianfa Plastic Technology Co., Ltd., Jilin Province Zhongyi Pharmaceutical Packaging Co., Ltd. , Beijing Benquanyuan Trading Co., Ltd., Lin Parker bag | | Administrative Organization | National Standardization Technical Committee for Food Direct Contact Materials and Products (SAC/TC 397) | | Regulation (derived from) | National Standard Announcement No. 12 of 2021 | | Proposing organization | China National Light Industry Council | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | | Standard ID | GB 10457-2009 (GB10457-2009) | | Description (Translated English) | [GB/T 10457-2009] Plastic cling wrap film for keeping fresh of food | | Sector / Industry | National Standard | | Classification of Chinese Standard | Y28 | | Classification of International Standard | 83.140.01 | | Word Count Estimation | 12,178 | | Date of Issue | 2009-04-27 | | Date of Implementation | 2010-09-01 | | Older Standard (superseded by this standard) | GB 10457-1989 | | Quoted Standard | GB/T 1037; GB/T 1038; GB/T 1040.3; GB/T 2410; GB/T 2828.1; GB/T 2918; GB/T 5009.60; GB/T 5009.67; GB/T 6672; GB/T 6673; GB 9681; GB 9685; GB 9687; GB/T 16288; GB/T 17030; QB/T 1130 | | Drafting Organization | Applied Research Institute of Light Industry Plastics Processing | | Administrative Organization | National Plastics Standardization Technical Committee | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 5, 2009 (No. 145 overall) | | Proposing organization | China Light Industry Federation | | Issuing agency(ies) | Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China | | Summary | This Chinese standard specifies the self-adhesive plastic food wrap terms and definitions, product classification, labeling, requirements, test methods, inspection rules and signs, packaging, transportation and storage. This standard applies to polyethylene, polyvinyl chloride, polyvinylidene chloride resin as the main raw material, etc., through the single-layer or multi-layer extrusion process of the production of self-adhesive plastic food wrap (hereinafter referred to as plastic wrap). | | Standard ID | GB 10457-1989 (GB10457-1989) | | Description (Translated English) | Cling wrap polyethylene film for keeping fresh of food | | Sector / Industry | National Standard | | Classification of Chinese Standard | A82 | | Classification of International Standard | 55.08 | | Word Count Estimation | 5,581 | | Date of Issue | 1989/3/22 | | Date of Implementation | 1989/10/1 | | Quoted Standard | GB 1037; GB 1038 | | Regulation (derived from) | Announcement of Newly Approved National Standards 2009 No. 5 (No. 145 overall) | | Proposing organization | China Packaging Corporation | | Issuing agency(ies) | State Bureau of Technical Supervision |
GB/T 10457-2021
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 83.140.01
CCS Y 28
Replacing GB/T 10457-2009
General requirement of plastic self-cling wrap film for
keeping food fresh
ISSUED ON: OCTOBER 11, 2021
IMPLEMENTED ON: MAY 01, 2022
Issued by: State Administration for Market Regulation;
Standardization Administration of the People's Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions... 6
4 Classification ... 6
5 Requirements ... 6
6 Test methods ... 9
7 Inspection rules ... 13
8 Packaging signs, packaging, transportation, storage ... 16
General requirement of plastic self-cling wrap film for
keeping food fresh
1 Scope
This Standard specifies the terms and definitions, product classification, requirements,
test methods, inspection rules, packaging signs, packaging, transportation and storage
of plastic self-cling wrap film for food.
This Standard applies to plastic self-cling wrap film for food (hereinafter referred to as
the wrap film) that takes polyethylene (PE), polyvinyl chloride (PVC), polyvinylidene
chloride (PVDC), ethylene-vinyl acetate copolymer (EVA), polybutylene terephthalate-
adipate (PBAT) and other resins as the main raw material, is produced by single-layer
extrusion or multi-layer co-extrusion process.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
GB/T 1037-1988, Test method for water vapor transmission of plastic film and sheet.
Cup method
GB/T 1038-2000, Plastics - Film and Sheeting - Determination of Gas Transmission
- Differential-pressure Method
GB/T 1040.3-2006, Plastics - Determination of Tensile Properties - Part 3: Test
Conditions for Films and Sheets
GB/T 2410-2008, Determination of the luminous transmittance and haze of
transparent plastics
GB/T 2828.1-2012, Sampling procedures for inspection by attributea - Part 1:
Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot
inspection
GB/T 2918-2018, Plastics - Standard atmospheres for conditioning and testing
GB/T 6672-2001, Plastics film and sheeting - Determination of thickness by
mechanical scanning
GB/T 6673-2001, Determination of Length and Width of Plastics Film and Sheeting
QB/T 1130-1991, Plastics Angle Tear Performance Test Method
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1 self-cling wrap film for keeping food fresh
The film that has self-adhesive and food preservation or cleaning function when it is
used for packaging food.
3.2 self-cling
The ability to stick that the self-cling wrap film has.
NOTE: It is quantitatively expressed as shear peel strength.
3.3 open-wrapping
The ease with which the wrap film is drawn out of the film roll during use.
3.4 anti-fogging
The ability of the wrap film to prevent water droplets or mist from forming on the
surface.
4 Classification
According to the processing technology of wrap film, wrap film can be divided into
single-layer self-cling wrap film and multi-layer co-extruded self-cling wrap film.
According to the material of the wrap film, the single-layer wrap film can be divided
into polyethylene self-cling wrap film, polyvinyl chloride self-cling wrap film,
polyvinylidene chloride self-cling wrap film, polybutylene terephthalate-adipate glycol
ester self-cling wrap.
5 Requirements
5.1 Size deviation
5.1.1 Thickness deviation
The thickness deviation of the wrap film shall meet the requirements in Table 1.
H0 - Nominal moisture permeability, in grams per square meter 24 hours [g/(m2 • 24h)];
ΔH - Moisture permeability deviation.
6.4.5 Right angle tear strength
Test according to QB/T 1130-1991. The sample is a single-layer film.
6.4.6 Self-cling (shear peel strength)
6.4.6.1 Specimen preparation
Cut ten specimens of 50mm long and 25mm wide. Two pieces is a set. Make each set
of specimens overlap end to end. The length of the overlapping joint is 15mm. The
width is 25mm. Lay the specimen on a smooth surface. Use a rubber roller (diameter is
40mm, length is 100mm, mass is 300g) to reciprocate 3 times on the overlapping part
of the specimen. Make sure that no air remains between the two layers of wrap film at
the overlap. Place the prepared specimen in the test environment for 20min. Then test.
6.4.6.2 Test method
Stretch each set of specimens on a tensile machine. Measure the force required to
separate two specimens. The result is the arithmetic mean of five sets of specimens. The
test equipment shall comply with the provisions of GB/T 1040.3-2006. The stretching
speed is 250mm/min±50mm/min.
Calculate self-cling (shear peel strength) according to formula (7):
Where,
T - Self-cling (shear peel strength), in Newtons per square centimeter (N/cm2);
P - The force required to separate the specimen, in Newtons (N);
b - The overlapping width, in centimeters (cm);
a - The overlapping length, in centimeters (cm).
6.4.7 Determination of open-wrapping
6.4.7.1 Preparation of specimen
Cut out six specimens with a width of 50mm and a length of 150mm. Two pieces is one
set. Adhesive surfaces are laminated to each other oppositely. The laminated length is
100mm. The processing and treatment methods are the same as 6.4.6.1.
7.2.1 Exit-factory inspection
The factory inspection items are appearance, size, tensile strength, nominal strain at
break, and self-cling.
7.2.2 Type inspection
Type inspection items are all the items specified in Chapter 5. Type inspection shall be
carried out when one of the following conditions exists:
a) When it is the first production;
b) When the variety of raw materials, product structure, production process or
equipment is changed;
c) When there is a big difference between the exit-factory inspection results and the
last type inspection results;
d) When the production is stopped for three months or more, when the production is
resumed;
e) When the production continues for one year;
f) When required by the relevant quality supervision departments of the country.
7.3 Sampling plan
7.3.1 Thickness deviation, width deviation, appearance
Adopt the special inspection level S-4 specified in GB/T 2828.1-2012 and the
secondary sampling plan of normal inspection, as shown in Table 5. The sample unit is
volume.
8 Packaging signs, packaging, transportation, storage
8.1 Packaging signs
The boxes and bags shall be marked with at least:
a) Product name;
b) Product quantity, specification (nominal thickness, nominal width, nominal
length);
c) Manufacturer's name;
d) Production date and effective use period;
e) Product material and type;
f) Reference to this document;
g) Words like "for food contact" and "for food";
h) Use warnings or other instructions.
Non-PVDC wrap film shall be marked with the nominal values of oxygen permeation
[unit is cm3/(m2·24h·0.1MPa)], carbon dioxide permeation [unit is
cm3/(m2·24h·0.1MPa)] and moisture permeability [unit is g/(m2·24h)].
For all kinds of additives with a mass content of more than 1%, their specific names or
chemical structural formulas shall be marked.
If the wrap film is declared to be microwaveable, it shall be marked with
"microwaveable", the heating method and the maximum temperature resistance.
8.2 Packaging
8.2.1 Inner packaging
Pack in airtight film bags or carton with rack.
8.2.2 Outer packaging
The product is packaged in a carton or other suitable packaging.
8.3 Transportation
Pay attention to moisture and sun protection during product transportation. In the
process of loading and unloading, it shall be lifted and placed lightly, without heavy
pressure.
......
GB 10457-2009
GB
NATIONAL STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 83.140.01
Y 28
Replacing GB 10457-1989
Plastic cling wrap film for keeping fresh of food
ISSUED ON. APRIL 17, 2009
IMPLEMENTED ON. DECEMBER 01, 2009
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
3. No action is required - Full-copy of this standard will be automatically &
immediately delivered to your EMAIL address in 0~60 minutes.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 5
4 Classification ... 6
5 Identification ... 6
6 Requirements ... 7
7 Test method ... 9
8 Inspection rules ... 14
9 Marking, packaging, transportation, and storage ... 16
Foreword
Chapter 5 and clause 6.6 of this standard are mandatory, AND the rest is
recommended.
This standard replaces GB 10457-1989 “Cling wrap polyethylene film for
keeping fresh of food”.
Compared with GB 10457-1989, the main changes of this standard are as
follows.
- CHANGE the standard name from the “Cling wrap polyethylene film for
keeping fresh of food” to the “Plastic cling wrap film for keeping fresh of
food”;
- EXTEND the scope of standard from the cling wrap polyethylene film for
keeping fresh of food to the other plastic cling wrap film for keeping fresh of
food;
- ADD the technical requirements for raw materials;
- CHANGE the length deviation to the roll weight deviation;
- CHANGE the gas transmission to gas transmission deviation;
- CHANGE the moisture transmission to moisture transmission deviation;
- ADD the nominal value of the marking volume, gas transmission, and
moisture transmission;
- ADD the requirements for the marking material.
This standard was proposed by the China Light Industry Federation.
This standard shall be under the jurisdiction of the National Plastic Product
Standardization Technical Committee.
The drafting organizations of this standard. Institute of Light Industry Plastics
Processing and Application, Shenzhen Wandajie Plastic Products Co., Ltd.,
Shenzhen Junhao Plastic Products Co., Ltd., National Quality Supervision and
Inspection Center for Plastics (Beijing).
The main drafters of this standard. Chen Jiaqi, Weng Yunxuan, Chen Qian, Xu
Lidan, Wei Wenchang, Su Junming.
This Standard replaces the standard previously issued as follows.
- GB 10457-1989.
Plastic cling wrap film for keeping fresh of food
1 Scope
This standard specifies the terms and definitions, product classification,
identification, requirements, test methods, inspection rules and marking,
packaging, transportation and storage of plastic cling wrap film for keeping
fresh of food.
This standard applies to the plastic cling wrap film for keeping fresh of food
which is produced using the polyethylene, polyvinyl chloride, polyvinylidene
chloride and other resins as the main raw material through a single layer
extrusion or multi-layer co-extrusion process (hereinafter referred to as wrap
film).
2 Normative references
The provisions in following documents become the provisions of this Standard
through reference in this Standard. For the dated references, the subsequent
amendments (excluding corrections) or revisions do not apply to this Standard;
however, parties who reach an agreement based on this Standard are
encouraged to study if the latest versions of these documents are applicable.
For undated references, the latest edition of the referenced document applies.
GB/T 1037 Plastics - Films and sheeting – Water vapor transmission test
method - Cup method
GB/T 1038 Plastics – Film and sheeting – Determination of gas
transmission – Differential pressure method (GB/T 1038-2000, neq ISO
2556.1974)
GB/T 1040.3 Plastics - Determination of tensile properties - Part 3. Test
conditions for films and sheets (GB/T 1040.3, ISO 527-3.1995, IDT)
GB/T 2410 Determination of the luminous transmittance and haze of
transparent plastics
GB/T 2828.1 Sampling procedures for inspection by attributes – Part 1.
Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot
inspection (GB/T 2828.1-2003, ISO 2859-1.1999, IDT)
GB/T 2918 Plastics - Standard atmospheres for conditioning and testing
(GB/T 2918-1998, idt ISO 291.1997)
GB/T 5009.60 Method for analysis of hygienic standard of products of
polyethylene, polystyrene and polypropylene for food packaging
GB/T 5009.67 Method for analysis of hygienic standard of products of
polyvinyl chloride for food packaging
GB/T 6672 Plastic film and sheeting – Determination of thickness by
mechanical scanning (GB/T 6672-2001, idt ISO4593.1993)
GB/T 6673 Determination of length and width of plastic films and sheeting
(GB/T 6673-2001, idt ISO 4592.1992)
GB 9681 Hygienic standard for polyvinyl chloride molding of food packaging
GB 9685 food containers, packaging materials used in the use of health
standards
GB 9687 Hygienic standard of products of polyvinyl chloride for food
packaging
GB/T 16288 Marking of plastic products
GB/T 17030 Polyvinylidene chloride (PVDC) flat-film for food-packaging
QB/T 1130 Plastic angle tear performance test method
3 Terms and definitions
The following terms and definitions apply to this standard.
3.1
Cling wrap film for keeping fresh of food
It refers to, for the purpose of packaging food, a type of film which has the
self-adhesive function and food preservation or cleaning function.
3.2
Polyethylene cling wrap film for keeping fresh of food
It refers to the cling wrap film for keeping fresh of food which is produced
using the polyethylene (PE) as raw material.
3.3
Polyvinylchloride cling wrap film for keeping fresh of food
It refers to the cling wrap film for keeping fresh of food which is produced
using the polyvinyl chloride (PVC) as raw material.
3.4
Polyvinyl dichloride cling wrap film for keeping fresh of food
Moisture transmission deviation / % ± 20
Self-cling (shear peeling strength) / (N/cm2) ≥ 0.5
Open-wrapping The sample shall be totally opened in 5 s.
Anti-fogging
Under the test conditions, the surface of the
wrap film shall be free from water droplet
attachment OR otherwise there is only local
small droplet attachment. It is not allowed to
have large area of water droplet to attach to the
surface of the wrap film.
6.6 Hygienic performance
The hygienic performance of the polyethylene cling wrap film for keeping fresh
of food shall be consistent with the provisions of GB 9687.
The hygienic performance of the polyvinylchloride cling wrap film for keeping
fresh of food shall be consistent with the provisions of GB 9681.
The hygienic performance of the polyvinyl dichloride cling wrap film for keeping
fresh of food shall be consistent with the provisions on hygienic performance of
GB/T 17030.
The hygienic performance of multilayer extrusion cling wrap film for keeping
fresh of food shall be in accordance with the hygienic standard of the
corresponding item in contact with food, AND during the test, the plastic film in
contact with food is used for the hygienic performance test.
The wrap films of other materials shall comply with the provisions of the
corresponding material standard on hygienic performance.
7 Test method
7.1 Sample state conditioning and test environment
PERFORM test in accordance with the standard environment 23 °C ± 2 °C in
GB/T 2918. AND the state conditioning time shall be more than 4 h.
7.2 Size and mass deviation
7.2.1 Thickness
MAKE measurement in accordance with the provisions of GB/T 6672; MAKE
10 measurements uniformly along the width direction of the plastic wrap film;
USE the formula (1) to calculate the thickness limit deviation.
Δt = t min or max - t 0 ... (1)
Where.
T min or max - Measured maximum or minimum thickness, in millimeters (mm);
Where.
H - Measured moisture transmission, in grams per square meter • 24 hours
[g / (m2 • 24h)];
H0 - Nominal moisture transmission, in grams per square meter • 24 hours
[g / (m2 • 24h)];
ΔH - Moisture transmission deviation, %.
7.7 Light transmittance and haze
PERFORM test in accordance with the provisions of GB/T 2410.
7.8 Self-cling (shear peeling strength)
7.8.1 Preparation of sample
CUT 10 pieces of samples which are 50 mm in length and 25 mm in width;
USE 2 pieces as a group; MAKE the cling side of the sample opposite to each
other along the length direction; MAKE the head overlap the tail, AND the
overlapping length is 15 mm and width is 25 mm; PAVE the sample on a
smooth plane; USE a rubber roller (diameter 40 mm, length 100 mm, the mass
300 g) to make repeated rolling for 3 times at the sample overlapping part, to
remove the air from between the two layer...
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