Paper Valve Bags Is A New Environmentally Friendly And Efficient Packaging Option

In modern industrial production, the efficiency and environmental protection of the packaging link are crucial to the sustainable development of enterprises. A new packaging solution called Paper valve bags is gradually becoming the focus of the industry. This packaging bag produced by Guangdong Yingtong Packaging Co., Ltd. is changing the face of traditional packaging with its innovative structure, excellent material performance and environmental advantages.

Product Introduction

Paper valve bags is an environmentally friendly packaging container designed for automated filling processes. They are made of multi-layer kraft paper or composite materials and are equipped with a one-way valve at the bottom. This design enables mechanical or pneumatic equipment to quickly fill the material and automatically form a neat cubic shape, significantly improving packaging efficiency and stacking stability. As a global mainstream industrial packaging solution, they are widely used in the building materials, chemical and food industries for packaging powder or granular materials, especially in line with strict export requirements such as moisture-proof, leak-proof and beautiful printing.

Product Features

Innovative structure: efficient filling and sealing

Valve design: The one-way valve at the bottom ensures compatibility with automated filling equipment and fills 3-5 times faster than traditional packaging. After the valve is closed, a sealed structure is formed, providing excellent moisture-proof and leak-proof performance for moisture-sensitive materials such as cement and putty powder.

Cube forming: After filling, it automatically forms a neat cube shape, improves the stacking space utilization rate by 30%, and reduces transportation losses.

Material science: balance strength and environmental protection

Multi-layer composite structure: adopts 3-6 layers of kraft paper + PE film composite technology, enhances the tear strength by 50%, reaches IPX4 moisture-proof level, and is suitable for high humidity transportation environment.

Lightweight design: 20% lighter than traditional woven bags under the same load, reducing logistics costs.

Printing technology: brand and compliance

High-precision printing: supports 1-8 color flexo or gravure printing, with a resolution of 300dpi, meeting the transparency requirements of food-grade packaging.

Compliance: FDA and EU REACH certification, allowing direct contact with food ingredients such as wheat flour and starch syrup.

Environmental protection and cost-effectiveness

Recyclability: 100% paper material (optional biodegradable PE film), achieving 98% waste recycling rate, in line with carbon neutrality goals.

Low waste: Dust leakage rate during valve filling is <0.1%, reducing material waste by 90% compared with traditional open bags.

Customization options

Material upgrade: Optional imported kraft paper (tear strength>15N/15mm) or thickened PE film (thickness 80-200μm).

Functional enhancement:

Anti-static coating (surface resistance <10¹²Ω)

Anti-UV coating (UV blocking rate>95%)

Easy-tear design (hot/cold cutting)

Application scenarios

Building materials industry: Improve production efficiency

Application scenarios: Automated filling of powder materials such as gypsum powder, putty powder and tile adhesives. The cubic structure increases the stacking density by 25% and the container load capacity by 15%. The moisture-proof PE film layer effectively isolates moisture and extends the shelf life.

Chemical industry: Safety and compliance

Application scenarios: Packaging of chemical raw materials such as silica and resin. The multi-layer kraft paper + PE film composite structure passes the ASTM D4169 transportation test. The valve sealing design achieves a leakage rate of <0.01%, which is much lower than the industry standard.

Food Industry: Combining Safety and Beauty

Application Scenario: Packaging of food-grade materials such as wheat flour, starch syrup and maltodextrin.

Solution: Food-grade PE lining complies with FDA 21 CFR 177.1520 standard. High-precision flexographic printing supports multi-color brand and traceability code printing.

Cleaning and Maintenance Guide

Equipment Maintenance

Daily Cleaning: Wipe the surface of the packaging machine with non-woven cloth to prevent dust accumulation and mechanical failure.

Lubrication Management: Replace special lubricating oil every 500 hours to ensure smooth valve opening/closing mechanism.

Moisture and Corrosion Prevention: Apply anti-rust lubricating oil regularly to prevent metal parts from rusting due to moisture.

Packaging Storage

Environmental Control: Store in a dry environment (humidity <60%) to prevent kraft paper from absorbing moisture and deforming.

Inventory Management: Store unused bags flat in a cool place to avoid material aging due to direct sunlight.