PROFESSIONAL BUILDING MATERIALS

HIGH-QUALITY
CEMENT VALVE BAGS

STRONGER PERFORMANCE | BETTER PACKAGING

HIGH STRENGTH

Reliable and durable performance

EXCELLENT ADHESION

Strong bonding, not easy to crack

EASY APPLICATION

Smooth construction, more efficient

ENVIRONMENTALY FRIENDLY

Safe and non-toxic, for a healthier future

Production Workshop
15+
Years Experience
Automated Production
ABOUT US

Yunnan Qinde Packaging

Yunnan Qinde Packaging Co., Ltd. was established on October 22, 2009. It is registered in Shanglubiao Village, Lubiao Town, Anning City, Kunming, Yunnan Province, with Cai Shunbao serving as its legal representative. The company’s business scope includes the following general items:

Ethically Sourced, Honestly Made

We believe that great packaging starts at the source. That's why we partner with certified suppliers who share our commitment to quality.

Nutrition That Fits Your Lifestyle

We believe that great packaging starts at the source. That's why we partner with certified suppliers who share our commitment to quality.

PRODUCTS SHOW

Product recommendations

OUR SERVICES

Step-by-Step to Your Growth

Far far away behind the word mountains far from the countries Vokalia and Consonantia there live the blind texts.

Size Customization

Tailored bag dimensions and capacity planning optimized for your 20kg, 25kg, or 50kg automated rotary packers and filling lines.

STEP 01 CUSTOM SIZE

Bag Type Customization

Advanced Starlinger hot-air welded square bottom valve bags, open-mouth woven sacks, and multi-layer kraft paper composite designs.

STEP 02 BAG TYPE

Brand Logo Printing

High-definition 8-color flexographic and rotogravure printing ensuring striking brand identity and professional presentation worldwide.

STEP 03 BRAND PRINTING

Breathability Adjustment

Precision laser micro-perforation matrix engineered for rapid air exhaustion during high-speed automated filling without powder leakage.

STEP 04 AIRLOCK TUNING

Moisture-Proof Lamination

BOPP/PE lamination protection against tropical humidity. Free sample testing available, supporting stable bulk delivery.

STEP 05 MOISTURE PROOF
NEWS & BLOG

Company Dynamics & Packaging Insights

View More News
News
Featured News Oct 12, 2026

Yunnan Qinde Commissions New High-Speed Hot-Air Welded Valve Bag Line

Our expanded Kunming facility boosts daily output of 50kg cement valve bags by 35%, delivering higher seam strength, brick-shape pallet stability, and zero adhesive contamination.

3 min read
Blog Technical Blog
Sep 26, 2026 • R&D Guide

How to Optimize Micro-Perforation & Lamination for Humid Cement Storage

Balancing air release rate during 1,200 bags/hour rotary packing while preventing tropical port moisture absorption in 50kg cement valve bags.

Blog Global Export
Sep 08, 2026 • Bulk Delivery Case

Batch Delivery of 6 Million Custom Block Bottom Mortar Bags to ASEAN Clients

Passing strict UV-aging and drop tests, our BOPP laminated block bottom woven bags continue to empower major building material brands across Southeast Asia.

Blog Quality Standard
Aug 24, 2026 • Lab Testing

Key Tensile & Drop-Test Standards for 50kg Export Cement Valve Pockets

How virgin polypropylene tape drawing and ultrasonic valve sealing eliminate bag breakage during multi-modal crane and forklift transit.