Why Global Brands Choose Us
- 20 years of focus on large-scale customization of back seal bags
- Equipped with a dedicated quality inspection team
- Our service network covers more than 100 overseas markets
- We promise to respond to your emails within 24 hours
- Urgent orders can be delivered in as little as 5 days
Your Reliable Back Seal Bag Manufacturer
Deeply cultivating the production of back sealed bags for 20 years, we possess a stable supply capacity of 25 tons per month, and pass through mature quality control ensure consistency of each batch of orders. Materials, dimensions, and printing we can customize according to your product and brand requirements.
To meet various packaging requirements, we can provide prefabricated back sealing bag and applicable to the back sealing film of the automatic packaging machine. Roll film can be used on automatic packaging machines realize continuous bag making, filling, and sealing, material structure, thickness, bag width, and back sealing position customization can be made according to product and equipment requirements.
Flexible customization of materials, sizes, thicknesses, and printing allows back-seal bags to better suit your packaging and display needs.
Your Reliable Back Seal Bag Manufacturer
The back sealing bag will seal the edges placed on the back, There is no middle sealing line on the front occlusion, maximizing brand and pattern display space, suitable for retail shelf display.
The back sealing roll applicable to VFFS machines, can be completed continuously bag making, filling, sealing and cutting, suitable for large-scale production, reduce manual operations.
After determining the width of the coil adjustable horizontal sealing position to adapt to different packaging sizes and bag lengths; Multi specification products can reduce the stocking pressure of prefabricated bags.
Back sealing bag is optional overlapping or wing shaped back sealing; The former is smoother, the latter retains the vertical edge banding, adapt to different packaging requirements.
Sustainable Back Seal Bag Material Options
To meet the packaging positioning of different brands, we offer customized choices for back sealing bags from traditional composite materials to NTSQP certified biodegradable materials, including starch based films, CPLA films etc. Brands can be based on product positioning, sales market, packaging performance requirements, and environmental protection plan choose a suitable material structure, maintaining the bag body while maintaining basic strength, flexibility, and practicality, gradually reduce dependence on traditional plastic materials.
Precise Customization Facilitates Smoother Packaging Operations
The back sealing bag can be customized according to product filling method and packaging equipment requirements, customized materials structure, film thickness, bag width, back sealing position, and heat sealing strength. For the roll film used in automatic packaging machines, can also be matched film stability and heat sealing temperature range, make vertical back sealing and horizontal sealing areas more flat and firm, help reduce poor sealing, leakage, edge bursting, and film deviation the packaging damage caused, and enhance consistency of finished product appearance.
Customized Back Seal Bags Providing End-to-End Manufacturing Support
As a professional custom manufacturer of back-sealed bags in China, we serve wholesalers, brand owners, distributors, and packaging procurement teams. We provide bulk supply services for prefabricated back-sealed bags and automatic packaging machines suitable for roll films. Can be based on product characteristics, filling methods, equipment parameters, and brand positioning, customized materials structure, size, back cover form and printing scheme, and provide full process support from sampling, production, quality inspection to export delivery.
We have complete internal production configuration, equipped with 4 printing production lines, 2 composite production lines, and multiple auxiliary packaging bag production lines. Can undertake customized production of prefabricated back sealing bags and back sealing roll films. For different products and packaging processes, flexible adjustment bag width, film thickness, back sealing form, and printing scheme.
Application of Back Seal Bags
Suitable disposable knife, fork, straw, and cutlery set packaging. The back sealed bag can hold multiple tableware items neat combination, keep the packaging clean and orderly, and support pre made bags are manually filled or automatically packaged with rolled film, meet batch requirements catering supply and retail packaging demand.
Suitable retail packaging for building blocks, puzzles, accessories, and combination sets. The back sealing bag can be pressed product size customization, support transparent display, brand printing, or blind box masking design, while protecting the surface of the product, meet the needs of bulk packaging and shelf display.
More About Back Seal Bag
- Back Seal Bag Details
- Material Introduction
| Product Type | Back seal bag | Bag style | Back seal bag、roll film |
| Materials | Opp、pet、pe、cpe、cpp、Starch membrane、CPLA membrane | Size | Customizable sizes |
| Thickness | Customizable thickness | Color | Customizable colors |
| Transparency | Customizable transparency | Printing | Gravure printing, digital printing |
OPP
OPP has high transparency, stiffness, and surface gloss, can make the packaging present clearer and brighter visual effects. Its good printability, also beneficial present brand patterns, colors, and product information.
PET
PET film combines both high strength, stiffness, and heat resistance, the surface is flat and smooth, suitable for fine printing. In composite packaging structures, can provide a certain amount of water vapor and oxygen barrier support, help improve the protection performance during product storage and transportation.
PE
PE has good flexibility, moisture resistance, and heat sealing performance, often as the inner layer material of composite packaging is used. It can form a stable heat sealed area, help improve the sealing reliability and daily durability of packaging.
CPE
CPE film has a soft texture, has good ductility and impact resistance, suit an occasion a packaging solution that is flexible, resistant to rubbing, and has a certain degree of puncture resistance.
CPP
CPP combines both good transparency, heat sealing suitability, and puncture resistance, compared to ordinary PE film materials, usually has higher stiffness and surface gloss. Suitable for clear display of the product is required, simultaneously maintaining a packaging structure with stable sealing performance.
Starch membrane
Starch basement membrane is mainly made of plant starch, it is one of the choices for biodegradable materials. Its bag body has good flexibility and processing adaptability, can be used for bag making processing of non food products, suitable for following environmentally friendly materials, packaging projects with fast product turnover or relatively short storage cycles.
CPLA membrane
CPLA film is based on PLA substrate materials formed by crystallization modification, compared to regular PLA, has better heat resistance, stiffness, and structural stability. Suitable for brand projects that value the properties of environmentally friendly materials and the appearance and texture of packaging, especially suitable for small non food flat pockets.
Real Feedback from Customers
The shape of MC’s prefabricated back sealing bag is neat, making it easy for our team to fill. The seams look clean and the finished packaging is well placed on the shelves.
JessAfter replacing with MC’s back sealing film, our automatic packaging machine has smoother film flow, stable vertical and horizontal sealing, and good consistency between repurchase batches.
Lucy
If you adopt manual or bag filling, pre made back sealing bags can be selected; If a vertical bag making, filling and sealing machine is used, back sealing film is usually more suitable, can be installed on the device continuous completion bag making, filling, sealing, and cutting. suggestion for confirmation before selection your packaging method and equipment type.
Not necessarily. The film roll needs to be connected to the molding machine of the equipment match the size, film direction, cursor recognition method, heat sealing temperature, and tension control. Provide equipment model, current coil specifications, or finished bag dimensions, helpful to confirm if the coil scheme is compatible.
Yes, but it needs to be combined with the bag body confirmation of dimensions, material structure, and packaging equipment. Easy to tear mouth should be avoided main stress area; Hanging holes will affect top sealing area; Inflatable packaging requires consider the strength of the bag body, sealing fastness, and transportation compression risk.
