Standard Woven Bag Specifications:30cm-----75cmWide, with unlimited length, available for standard printing and full-color printing.

Application Scope

Vegetables and other agricultural products packaging

Subsequently replacing paper-based cement packaging bags.

Due to product resources and pricing issues, our country has6010 million woven bags for cement packaging, accounting for a significant portion of bulk cement packaging85%Above, with the development and application of flexible container bags, woven plastic container bags are widely used in marine transportation and packaging of agricultural and industrial products. In agricultural product packaging, woven plastic bags have been extensively used for packaging aquatic products, poultry feed, covering materials for farms, shading, windbreak, and hail-proof structures for crop planting. Common products include feed woven bags, chemical woven bags, putty powder woven bags, urea woven bags, vegetable mesh bags, and fruit mesh bags, etc.

Food Packaging

Rice, flour, and other food packaging is gradually transitioning to woven bag packaging. Common woven bags include rice woven bags, flour woven bags, corn woven bags, and other woven bags.

Geotechnical Engineering

From80Since the development of geotextiles, the application fields of plastic woven materials have been broadened, widely used in small-scale water conservancy, electricity, highways, railways, seaports, mining construction, and military engineering projects. In these projects, geosynthetic materials provide functions such as filtration, drainage, reinforcement, isolation, and waterproofing. Plastic geotextiles are a type of synthetic geosynthetic material.

Travel Transportation

Temporary tents and sunshades in the tourism industry, as well as various travel bags and suitcases, utilize plastic woven materials. Various canvases are widely used as covering materials for transportation and storage, replacing the easily moldy and cumbersome cotton canvas. Construction fences and netting also commonly employ plastic woven materials. Common types include logistics bags, logistics packaging bags, freight bags, and freight packaging bags.

Everyday necessities

Most workers, farmers, cargo handlers, and market-goers use plastic woven products, which are everywhere in stores, warehouses, and homes. The padding material for synthetic carpet is also replaced by plastic woven materials, such as shopping bags, supermarket bags, eco-friendly supermarket bags; cargo woven bags for logistics transportation, logistics woven bags.

6Flood control supplies

Burlap bags are indispensable for flood relief efforts, as well as for the construction of embankments, riverbanks, railways, and highways. This includes flood prevention bags, drought-proof bags, and anti-flood bags.

National Standards

TAGS:National Standard for Plastic Woven SacksGB/T8946-2013

Date:2008-08-22

This standard specifies plastic packaging, Transportation, Storage requirements. This standard applies to polypropylene-based Polyethylene resin is the main raw material. After extrusion, Drawn into flat filaments Further weaving, Plastic woven bags made for packaging powdery or granular solid materials and flexible items (hereinafter referred to as "bags") 。

Cited Standards

The provisions contained in the following standards: Provisions constituting this standard through reference to this standard. At the time of this standard's publication, All displayed versions are valid. All standards will be revised. Parties using this standard should discuss the use of the following standards.***Possibilities for the new version.

GB/T 1039-92 Plastic Mechanical Property Test Methods - General Principles

GB/T 1040-92 Plastic Tensile Property Test Method

GB/T 2828-87 Batch inspection counting sampling procedures and sampling sheets (suitable for continuous batch inspections)

GB 2918-82 Standard Environment for Plastic Sample Conditioning and Testing

GB/T 4857. 5-92 Packaging, Transport Packaging Unit, Drop Test Method

GB/T 5009. 60-1996 Analysis Method for Sanitary Standards of Molding Products Made of Polyethylene, Polystyrene, and Polypropylene for Food Packaging

GB 9687-88 Sanitary Standards for Polyethylene Molding Used in Food Packaging

GB 9688-88 Sanitary Standards for Food Packaging Polypropylene Molding Products

Product Categories

Variety

PP bags, categorized by their primary constituent material. Polyethylene bags.

By sewing method, it is divided into seam-bottom bags, Seam Bottom Pouch

Testing Method

Tensile Load

Test Conditions

Please provide the Chinese content to be translated.GB/T 1039 Regulations are in effect. Samples are tested at temperature.23℃±2°C, Moisture Content Adjustment4hUnder these conditions, testing will be conducted.

Test equipment should comply withGB/T1040-1992 Chapter6Chapter on Equipment Regulations: Jig spacing is200mmThe empty vehicle descends at a speed of200mm/min±20mm/min。

Sampling Method

Taking the stitched rolled edge as the sampling surface, samples are taken from the warp and weft directions on each bag. Seaming direction Two pieces of fabric samples, stitched at the bottom. Long300mmApproximately 1 inch wide60mm, further refined to50mmPlease provide the Chinese content to be translated.***Leave any thread that extends beyond half an inch. The seam allowances on both sides of the sample should be appropriately lengthened, and each side should have three knots tied.

Record the tensile load of the sample and take its arithmetic mean.

If the sample breaks or slips in the fixture during testing, affecting accuracy, a new sample should be used to repeat the test.

Thermal resistance

Remove two specimens each from the warp and weft directions from the bag, length300mm, wide20mm。

Overlap the surfaces and apply on top9.8 NThe load, place in80℃ oven1hAfter removal, immediately separate the two overlapped specimens and inspect for any abnormal conditions such as sticking or melting marks on the surface.

Drop resistance

Test environment is at room temperature and humidity.

The testing site features a level concrete surface.

Fill Factor0.80～0.85。

Test quality and material selection

TAType bags20kgPolypropylene, polyethylene resins, or materials of equivalent density.

ABagged25kgPolypropylene, polyethylene resins, or materials of equivalent density.

BBagged style40kgUrea or material with equivalent density.

CType Bagged50kgUrea or material of equivalent density.

Test Sequence

******Vertical—Horizontal—Lateral

Article 2: Parallel—Lateral—Longitudinal

Section 3: Lateral—Vertical—Horizontal

Place the sample1.2mThe high degree of free fall5.7.5Perform three drop tests in the specified order to check for any bag破裂 (rupture) and packaging leakage.

Sanitary Performance

Please provide the Chinese content to be translated.GB/T5009.60Regulations are in effect.

Inspection Regulations

Batch assembling

Products of the same model and specification are considered as a batch, with no batch exceeding1510,000.

Sample

Bag appearance and deviation qualification determinationGB/T2828A standard sampling plan as specified(See Table5)Each woven sack is a sample unit.

Tensile load: random sampling per batch5Thread,Amongst2Line for backup,3Item by Item5.5.3Sample measurement.

Other inspection items are as specified in Item No.5The article stipulates random sampling, with the sample size to meet the testing requirements for the necessary items.

Inspection Category

Factory inspection items include tensile load.

Type Testing

The type testing items include all items in the technical requirements. Generally, a type test is conducted once a year. A type test should be carried out in any of the following situations:

a) Trial and certification of new or existing product prototypes for factory conversion production.

b) After formal production, if there are significant changes in structure, materials, or process that may affect product performance;

c) Upon resuming production after a long-term halt.

d) When the factory inspection results show significant differences from the previous type inspection;

e) The national quality supervision authority requires type testing.

6.4Evaluation Rules

Quality Assessment of Sample Units

The bag's appearance and deviations are inspected according to specifications. If all items pass the inspection, the sample unit is deemed qualified.

Quality Determination of Approved Batch

Bag appearance and deviation qualification determinationGB/T2828Regulations are in place, expressing batch quality in terms of the number of non-conforming products per hundred units, with a general inspection level ofICompliant Quality LevelAQL) for6.5See the specific regulations in the table.5。

If there are any items that fail the tensile load test, double the sampling from the original batch should be taken for retesting the failed items. If the retest results are all合格.,Then, the batch is deemed qualified.

Thermal Resistance Test

If the heat resistance test fails, the type test is considered不合格.

Drop Test

If the drop test is not passed, the type test is considered不合格.

Sanitary Performance

If the hygiene performance indicators are not up to standard, the type examination is considered不合格.

Logos, Packaging, Transportation, Storage

Trademark

The product packaging should include the manufacturer's name, product name, specifications, quantity, standard number, trademark, and manufacturing date. Special requirements shall be decided through mutual consultation.

Packaging

Bags should be sturdy, flat, and suitable for transportation.

The number of items per package is subject to negotiation between both parties.

Each package should contain a product certification.

Transportation

Bags should be handled with care during transportation, avoiding sun exposure and rain, to maintain the integrity of the packaging.

Storage

Bags should be stored in a cool, clean indoor area, with a storage period not exceeding eighteen months from the date of manufacture.

Woven bags, woven bag pockets, snake skin bags, Sichuan woven bags, fertilizer packaging bags, color printed woven bags