1. Product Overview

Our square bottom paper valve bags (AD*Star style) represent the premium tier of paper packaging. After filling, the bag forms a perfect brick shape with a flat, stable base — no extra strapping needed for 2-3 layer pallet stacking. Designed for brands that demand both high-speed filling efficiency and superior shelf appearance.

2. Technical Specifications

3. Key Features

• Perfect brick shape after filling — excellent retail shelf display

• Self-closing valve — no stitching required, automatic sealing after filling

• Flat stable base — safe 2-3 layer pallet stacking without extra wrapping

• 100% recyclable and biodegradable kraft paper

• Nano-perforation prevents dust leakage while maximizing filling speed

• Optional transparent window for premium product visibility

4. Applications

• Premium tile adhesives and grouts

• Self-leveling compounds and repair mortars

• Decorative plasters and finishing products

• Pet food and specialty animal feed

• High-value chemical powders

5. FAQ

Q: What is the advantage of square bottom vs standard valve bags?

A: Square bottom bags form a perfectly flat base after filling, eliminating the need for extra strapping on pallets and providing superior retail shelf display.

Q: Can you print our brand logo?

A: Yes, 1-6 color flexo printing available. Send us your artwork (AI or PDF) for a digital mock-up.

Q: Is the valve self-closing?

A: Yes. Our internal valve design closes automatically after filling, preventing product spillage.

6. Call to Action

• Send us your specifications — quote within 24 hours.

• Request free samples for your filling machine test.

• Ask for a landed cost estimate and compare with your current supplier.