Does Sinh Vũ take on small projects?

Sinh Vũ serves individuals, SMBs, and enterprises. Each tier has a suitable scope and approach. Small project clients often start with a 30-minute Coffee chat (free) or a Workshop/Audit to get the right direction before investing.

Self-brief, or do you need Sinh Vũ to assist with the brief?

Both are fine. Door 01 Detailed form for you if the scope is clear. Door 02 Chat with Sinh Vũ (5 minutes, AI asks the right questions) for you if the scope is unclear and needs consultation first.

How long from brief to the first deliverable?

Sinh Vũ responds within 24 hours. Detailed proposals within 48–72 hours. The first deliverable depends on the scope, typically 2–6 weeks from contract signing and deposit receipt.

What industries does Sinh Vũ work in?

300+ projects across 16 major sectors: F&B, Cosmetics, Fashion, Real Estate, Technology and SaaS, Manufacturing, Education, Healthcare, Finance, Travel, Agriculture, B2B professional services, and other sectors.

Is there a contract and confidentiality?

Yes. Every project signs a standard service contract from Sinh Vũ Studio, including clear confidentiality (NDA) and intellectual property terms. Briefs are stored separately, accessible only to the responsible team.

Can a composite film bag be resealed multiple times?

Flat pouch types (pillow bags and three-side seal bags) usually do not have zip locks and are completely sealed, intended for single use. This is the tamper-evident advantage, meaning once opened, there is a visible mark, but it is also a limitation. If the product needs to be resealed after each use, you should consider stand-up pouches with zip locks as an alternative.

Which membrane structure is suitable for my product?

It depends on the product's sensitivity and desired shelf life. Products requiring the highest barrier, such as coffee, active pharmaceutical ingredients, and collagen powder, typically use PET/aluminum foil/PE structures. Less sensitive products like snacks can use PET/PE or VMPET. Sinh Vũ will help you determine the specific film structure once the product characteristics and shelf life requirements are clear.

How do pillow packs and three-side sealed packs differ in terms of design?

The pillow pack has a seam running vertically along the back, meaning the back is cut across by a seam line. The three-side sealed pack has seams on three edges, allowing both the front and back to be flat and clean, enabling full design presentation on both sides. In return, the three-side sealed pack usually costs a bit more in materials. If the back is important for information or aesthetics, the three-side sealed pack is the better choice.

Complex film bags: moisture-proof, oxygen-proof, bulk printing

Quick summary

A complex barrier pouch (laminated pouch) is made from multiple layers of laminated film, each serving a specific role: the outer layer for printing and durability, the middle layer for moisture and oxygen barrier, and the inner layer that seals tightly. This is packaging that is scalable and convenient, best suited for single-dose packs, trial packs, and promotional packs that require low cost per unit. It integrates with large-scale manufacturing businesses in the food, cosmetic sachet, and single-dose pharmaceutical industries.

Quick comparison

You should choose this direction when

Single-serving snack packaging.
cosmetic mask sachet
nutritional powder stick
Prescription drug packaging.

Not needed when.

products need to be resealed multiple times
self-standing display packaging

Quick glance

Costs

Cheap.

Time

qualitative, depending on production volume and printing method

Commonly used industries

food and snackscosmeticsfunctional foodmedicinal products

When you need compact packaging, low cost per unit, and protection against moisture and oxygen, laminated pouches are often the first answer. However, "laminated" is not a single structure: choosing the wrong middle layer can cause the product to degrade before its expiration date, while choosing correctly but with insufficient volume can lead to higher-than-expected unit costs. This page helps you read that map.

What is a complex film laminated bag?

A complex barrier pouch is made from multiple layers of laminated film, each serving a distinct role. The outermost layer, usually PET (polyethylene terephthalate), provides strength and serves as the printing base. The middle layer is the barrier layer, which can be aluminum foil, VMPET (vacuum metallized PET), EVOH (oxygen barrier plastic), or nylon, depending on the level of protection needed. The innermost layer, usually PE or PP, is the product contact layer and can be heat-sealed.

The two most common types:

Pillow pack: sealed at the back creating a vertical seam on the back, then sealed at both ends. Lies flat, with the lowest material cost, suitable for snacks and single candies.
Three-side seal package: sealed on three sides, with a flat front and back without a back seam. Suitable for cosmetic masks, powder sachets, and any product that requires full information printed on both sides.

A more specialized variant is the stick pack: a long, narrow tube, often used for collagen powder, vitamin C, or single-dose electrolyte packets ranging from about 3 to 5 grams. All lie flat, saving storage and shipping compared to stand-up pouches with a bottom fold.

The film structure determines the level of protection. PET/aluminum foil/PE is the choice for the highest barrier: it blocks oxygen, moisture, and light, which is essential for preserving flavor and extending shelf life for coffee, active pharmaceutical ingredients, and sensitive nutritional powders. PET/PE without an aluminum layer offers decent moisture resistance, suitable for snacks and less sensitive powders. VMPET is a middle ground, cheaper than foil but with lower barrier properties. Nylon/PE adds puncture resistance, suitable for products with sharp edges inside.

When to choose, when not to

A barrier pouch is most suitable when the product needs single-dose packaging or single servings at a large enough volume to economically print rolls (flexo or rotogravure). Below is a quick decision framework.

Applicable when: Individually packaged candies and snacks; three-sided packaged cosmetic masks; nutritional powders, collagen, electrolyte sticks; single-dose pharmaceutical sachets need tamper-evident features (visible seal upon opening); trial and promotional packages require low cost per unit; products need to lay flat to save storage and shipping.
Not suitable when: the product needs to be resealed multiple times after opening (use stand-up pouches with a zip lock); needs to stand on the shelf (use stand-up pouches with a gusseted bottom); requires a premium, heavy feel for gifts or luxury segments (use rigid boxes); production runs are very small but you want a low unit price because roll printing requires large quantities to break even on initial printing costs.

One point that is easy to overlook: retail packages torn from the roll must print all mandatory information on each individual small package, not just on the outer box. For health supplements, the front of the package must correctly state "Health supplement" and include warning lines as required. This is the most legally tricky point when designing individual packages. Sinh Vũ will flag these labeling requirements during the design process, but you need to have an industry legal expert review the final content before printing.

Costs, time and quantity

Unit cost The cheapest option for bags when printed in large quantities is through flexo or rotogravure printing. Small batches printed digitally are significantly more expensive per unit because there are no initial printing plate costs, but there are also no economies of scale.

Initial setup cost Printing rolls incurs relatively high costs for the printing cylinder or initial print. This cost is gradually distributed according to the output: the more you print, the lower the cost per unit. This is why this type of packaging is most economical at large scales.

Minimum quantity There is no specific verification number from a verified source. Qualitatively: economic printing at very large volumes, digital printing allows for smaller batches but is more expensive per unit. You should ask the printer directly for actual numbers for each film structure.

Time It depends on the printing method, film structure, and supplier. Sinh Vũ does not have verification numbers to commit to specific timelines for all cases.

Sinh Vũ takes on the role of creative director: designing the structure of bags, surface graphics, and preparing technical files that meet the printer's specifications. Sinh Vũ does not commit to printing prices and does not represent any specific printing house. Printing costs and timelines are negotiated directly between you and the production unit.

What does Sinh Vũ need from you to get started

To advise on the structure of the film and begin design, Sinh Vũ needs to know:

Product and characteristics: what the product is, liquid or dry, whether it contains oil, if it has sensitive scents, desired shelf life.
Package type and volume: pillow pack, three-side seal, or stick; net weight per package.
SKU number: How many flavors or versions need to be designed at the same time?
Consumption market: domestic or export, through which channels (supermarkets, online, pharmacy), and whether there are specific labeling compliance requirements.
Expected output: the quantity produced each time, to determine the appropriate printing method.
Budget and timeline: When do you need the completed file to hand over to the printing house?

Single-use packaging is often overlooked due to its small size and low cost. However, this is usually the first touchpoint when customers try the product, and it is also where labeling errors can cause the most significant damage due to the scale of millions of packages.
Practical experience of Sinh Vũ

You can send the information above through the contact page for Sinh Vũ to provide initial consultation feedback at no cost.

The tool brings back.

Decision checklist

Topic: Complex film laminated bags. Sinh Vũ guide, sinhvu.com

0 more than 7 items

Select each item you find appropriate, then print or save as PDF to take with you.

Sign indicating that you should take action

Single-serving snack packaging.
cosmetic mask sachet
nutritional powder stick
Prescription drug packaging.

Questions to answer before deciding

Can a reclosable barrier pouch be resealed multiple times?
Which film structure is suitable for my product?
How do pillow packs and three-side seal packages differ in design?

If you have marked most of the signs above, this is the time to discuss in more detail. Sinh Vũ can help you review and propose a direction.

References

BAO-BI.md Sinh Vũ internal library; YLTPACK; CarePac; Yundu; Zacros America; IMPAK.

Frequently asked questions

Can a reclosable barrier pouch be resealed multiple times?

Flat pouch type (pillow pouch and three-side seal) usually does not have a zip lock and is completely sealed, intended for single use. This is the advantage of tamper-evident, meaning once opened, it shows evidence, but it also has limitations. If the product needs to be resealed after each use, you should consider a stand-up pouch with a zip lock as an alternative.

Which film structure is suitable for my product?

This depends on the sensitivity of the product and the desired shelf life. Products requiring the highest barrier, such as coffee, active pharmaceutical ingredients, and collagen powder, typically use a structure of PET/aluminum foil/PE. Less sensitive products like snacks may use PET/PE or VMPET. Sinh Vũ will help you determine the specific film structure once the product characteristics and shelf life requirements are clear.

How do pillow packs and three-side seal packages differ in design?

Pillow pack has a seam running along the back, meaning the back is cut across by a sealing line. The three-side seal package is sealed on three edges, so both the front and back are flat and clean, allowing for full design presentation on both sides. In return, the three-side seal package usually costs a bit more in materials. If the back is important for information or aesthetics, the three-side seal package is the better choice.