In the 2026 product introduction, we mentioned a brand-new name - " QiHua III ".

It is not an independent new product; instead, it has been fully applied to the core membrane material of the 【Qinon II】 single-layer bag and the 【Qinon III】aseptic collection bag since this year. We can say that it is the "framework" and "skin" of every Qinon collection bag in the future.

Why did we specifically upgrade the single layer of membrane? Because it directly determines the strength, lifespan, and safety of the bag, and also determines whether the tree juice you painstakingly collected can be safely brought out of the forest.

Today, let's take a look and explore what changes " QiHua III " has brought. 

1. Toughness increased by approximately 50%: Your stronger collection partner

Collecting sap from birch trees has never been an easy task. Branch abrasion, stone compression, transportation jolts... Every step tests the toughness of the bag.

"QiHua III" adopts a new food-grade resin formula and multi-layer co-extrusion technology, optimizing the structure at the molecular level. The actual measurement data shows:

• The toughness and puncture resistance have increased by approximately 50% compared to previous products

• The tensile strength and deformation resistance have also been enhanced simultaneously

This means that our new product is capable of coping with various challenging environments encountered in practice. whether in the complex forest with thorny bushes or on the bumpy transportation routes.

For collectors: Fewer accidental damages mean less loss and greater peace of mind in work. 

2. Thickness upgraded to 70 μm: Solid materials, no price increase

Resilience determines the bag's ability to withstand pressure; thickness is the most direct source of security.

In 2026, the single-sided thickness of the single-layer bag of【Qinon II】increased from 55 μm to 70 μm, with a total of 140 μm on both sides.

• What does 70 μm mean? In the field of food-grade collection bags, this is already a thicker configuration above the conventional standard.

• More practically: While the thickness was upgraded, our price remained unchanged.

We always believe that the efforts we have made to improve quality should not all be reflected in the increased cost for customers' purchases. With the same budget, getting a more solid product is what "upgrade" should have the sincerity for. 

3. Capacity Increased to 10L: Less Bag Changes, More Efficiency

The thickness has been increased, the strength has improved, and could we also increase the capacity at the same time?

The answer is, yes, but the bag must be sufficiently sealed.

Once the birch tree sap leaves the tree and comes into contact with the air, the longer the time it spends in contact with the air, higher the risk of oxidation and flavor loss. If we simply make the bag larger without ensuring long-term sealing and preservation, it might not be worth it.

This is precisely the core advantage of【Qinon II】.

In 2026, the standard capacity of the single-layer bag of【Qinon II】 was upgraded from 8L to 10L. Combined with its excellent sealing self-sealing characteristics, it can ensure:

•      Extended hanging bag time without affecting quality: The strong sealing performance effectively isolates air, slows down the oxidation process, and allows the sap to remain fresh in the bag for a longer time.

•      Two bags per day can be changed under normal collection conditions: Reducing the frequency of entering the mountains to change bags, significantly reducing labor costs.

•      Optimized overall cost: Using fewer bags and fewer workers to complete more collection.

For teams conducting large-scale collection, the efficiency improvement brought by this upgrade will be real figures on the financial ledger. 

4. Further improvement in transparency: Visible quality

In addition to the internal strength upgrade, "QiHua III" has also been optimized in the external aspect.

The transparency of the new material is higher than before, making it easier for collectors and buyers to observe directly:

• The liquid level inside the bag is clearly visible

• The color and clarity of the sap can be identified at any time

Good collection bag is not only convenient to use, but also enables the quality of the sap to be clearly visible. 

5. Consistent Safety Standard: Food Grade, No Additives

No matter how the materials are upgraded, there is one bottom line that we have never wavered from - food grade safety.

"QiHua III" uses 100% brand-new food-grade base materials and strictly adheres to the following:

•      No plasticizers (DEHP, etc.)

•      No fluorescent whitening agents

•      Complies with the GB 4806 series of national food contact material standards

We understand that the collection bag is the first "container" after the birch sap leaves the tree. The safety of the collection bag will have a direct impact on the quality of the birch sap.

Finally, let's come back to "QiHua III" itself.

It is not an independent product, but it is the common solid foundation for all our core products in 2026.

From 55μm to 70μm, from 8L to 10L, from regular strength to a 50% increase in toughness - behind every upgrade is the implementation of our belief that "good raw materials deserve better protection".

If you want to experience the changes brought by "QiHua III”, please contact your dedicated project manager to request samples. We are also opening a free traceability system, establishing a verifiable "digital ID" for each batch of raw materials for you.

As spring brings forth new growth, we meet in the forest.

QiChen Packaging Materials (Wuxi) Co., Ltd.

February 2026