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Labthink Instruments Co., Ltd.
Quality Concerns of Doypacks

Quality Concerns of Doypacks

Product catalog summary

Introduction to Doypacks:
Doypacks, also known as stand-up pouches, are increasingly popular in packaging due to their convenience and effective product presentation. They are designed with a stable bottom, making them easy for consumers to use and appealing on supermarket shelves.

Advantages of Doypacks:

Reclosable features such as zippers or spouts.
Easy opening with tear notches or perforations.
Efficient product display and shelf space maximization.
Customizable shapes without significant additional costs.
Reduced transportation and storage costs due to lightweight design.

Material Composition:
Doypacks are made from two to four layers of materials, with thicknesses ranging from 70 to 120 mm. The inner layer is polyethylene for resistance and thermo-welding, while the outer layer is polypropylene (BOPP) or lavsan (PET) for printing. An aluminum foil medium layer provides a high barrier against light and moisture, crucial for products like organic coffee and spices.

Quality Control Considerations:

Thickness of plastic and laminated films.
Heat seal properties of the inner layer.
Barrier properties against moisture, oxygen, and gases.
Ink abrasion resistance on the printing layer.
Peel strength between layers.
Lock and open force of spouts.
Overall package integrity.
Coefficient of friction for stacking and filling.

Quality control aims to reduce production costs by maintaining optimal packaging standards.

Conclusion:
Maintaining an optimum packaging system is essential for cost efficiency and product quality. Labthink Instruments Co., Ltd offers solutions for testing and ensuring the quality of doypacks. They can be contacted via email at [email protected] for further assistance.

Catalog excerpts

Quality Concerns of Doypacks Packaging is “a silent seller” of the goods. There are more and more producers who think about the design of their product for the customer to choose it among other products in supermarket. A bag with a stable bottom – doy-pack – is a beneficial positioning of product and it is very easy-to-use for the customer. Doypacks also go by the name of stand-up pouches. they obtain more and more customers and manufacturers favorite, because they are convenient: reclosable by adding a zipper or spout easy to be opened, by adding a tear notch or perforation display your products and maximize shelf space shape it in any way without high additional costs Because of small weight and capacity the costs for transportation and storing are less. A bag with a stable bottom consists of two-, three- or four- layered materials whose thickness may be different (from 70 to 120 mm). Inner layer is made of polyethylene and it provides the resistance to the content of the package and it is also thermo-welding layer. Outer layer is made of polypropylene ( BOPP) or lavsan( PET), it is very convenient for deep or flexographic printing. Aluminum foil is used for the medium layer .This layer is high-barrier, it does not pass light and moisture inside what is very important for organic coffee, spices, sauces, juices, etc.

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Based on the widely usages and constituent of Doypacks, quality control of doypacks should be included but not limited to: Thickness of each layer plastic film and laminated films Heat Seal property of inner layer material films Barrier property of medium layer for Moisture, oxygen and other gases Ink Abrasion Property on printing layer Peel strength among each layer Lock and open force of spout if any Package integrity Coefficient of Friction for piling up and filling In some way, quality control is not to increase the product cost but decrease the production cost. Here I want to show you a...

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