Customized Black Non Woven Shopping Bag Pp Laminated Non Woven Customized Logo

Non-woven bags are environmentally friendly shopping bags, and their durability is closely related to their printing process. The following is an analysis of the durability of non-woven bags with different printing processes.

1. Silk screen printing
Screen printing is the most common printing process for non-woven bags. It is characterized by protruding, very textured and bright colors. However, the durability of screen printing is relatively poor, because this printing method usually uses a manual scraper to produce pictures. The more types of colors, the more processes and the corresponding price. In addition, after long-term use of screen-printed non-woven bags, the printed pattern may wear or fall off.

2. Watermark
Watermarked non-woven bags use water-based elastic glue as the printing medium, which is characterized by good tinting strength, strong covering and fastness, washability, and basically no odor. The durability of watermarked non-woven bags is better because the printing process does not use chemical solvents, but directly rinses the printing plate with water, which makes the printed pattern stronger.

3. Gravure printing
Gravure printing, also known as coated non-woven bag printing, is usually used for printing large-area color patterns. The durability of this printing method is very good because the entire process is machine printed and the production cycle is short. The finished product has good waterproof performance and is more durable than non-woven bags produced by other processes. However, it should be noted that the film used in the lamination process may conflict with environmental protection concepts because the film is difficult to degrade.

4. Thermal transfer printing
Thermal transfer printing is a special printing method that requires an intermediate medium to complete. Its advantages are exquisite printing, rich layering, and comparable to photos. However, the durability of thermal transfer printing is poor, and the printed pattern is easy to fall off over time. In addition, the cost of thermal transfer printing is relatively high and is not suitable for mass production.

5. Offset printing
Offset printing is the abbreviation of machine offset printing. A soft offset plate is produced and pasted on the printing drum of the printing machine. This printing method is fast and the effect is good, but it is inferior to screen printing. The cost of offset printing is relatively low, and more and more manufacturers are adopting this printing method. However, the durability of offset printing is also poor. After long-term use, the printed pattern may appear to wear or fall off.

To sum up, if you are pursuing environmental protection and good waterproof performance, watermark and gravure printing are good choices. And if you are pursuing exquisite printing effects and fast production, screen printing and offset printing may be better choices. Although the printing effect of thermal transfer is exquisite, its durability and cost are high, and it is not suitable for non-woven bags that need to be used for a long time. When choosing a printing process, it should be decided based on specific application scenarios and needs.

7.Detailed steps of sewing process for non-woven shopping bags

The sewing process of non-woven shopping bags mainly includes the following steps:

1. Fabric selection and cutting
First, you need to choose the right non-woven fabric. The thickness of non-woven fabrics is generally calculated in units of weight per square gram, and the common ones are 30 grams, 40 grams, 50 grams, 60 grams, 70 grams and 80 grams. When choosing fabrics, you should choose non-woven fabrics with a shiny surface, small vertical and horizontal tension differences, and a harder feel. Such fabrics can stand up, highlight the overall feel of the environmentally friendly bag, and are more practical2. Then, using automated slicers and slitting machines, the fabric is cut into small pieces of the size we need. Among them, the large pieces of slit fabric are used for printing on the front and back plus the three-sided combination of the bottom, while the sides, handles, and edge strips are cut by a slitting machine.

2. Printing
The printing of non-woven bags generally uses the screen printing process. Because it is printed one by one by hand, the printing speed and progress will be slower than machine printing, but the cost will also be higher than machine printing. higher. What needs to be paid attention to when printing is that the printed text and patterns must have good fullness, and the size must be able to highlight the effect of the entire handbag.

3. Sewing
Sewing is an important step in the production of non-woven shopping bags, which determines the firmness and durability of the bag. In this step, large pieces of fabric, small pieces, handles, hemming and other fabrics are sewn together according to certain specifications and styles, just like clothing, to form the finished shopping bag we see. The sewing process includes many sewing methods, such as the handles and large joints. It is not necessary to cross them. The cross is to increase the firmness. On the side are the number of threads to run, the length of the strap, etc.

4. Packaging
The final step is packaging and boxing. In this step, cartons will be used according to certain specifications, such as 100 pieces per box or 200 pieces per box, and fonts will be printed on the boxes. In this way, boxes of finished shopping bags can be transported through logistics and reach various terminals for sale to consumers.

The above are the detailed steps of the sewing process of non-woven shopping bags. It should be noted that different manufacturers may have different production processes and process standards, so when choosing a supplier, it is best to understand their production processes and quality control processes in detail.

8.Frequently Asked Questions about Non-Woven Shopping Bag Sewing

During the sewing process of non-woven shopping bags, you may encounter some common problems. Here are some key issues and their possible solutions.

1. Quality issues
Non-woven shopping bags may have problems such as cracking and broken handles during use. These problems occur mainly due to improper production processes and material selection.

solution:
Choose high-quality fabrics to ensure that the surface is shiny and the difference in vertical and horizontal tension is small.
During the production process, the sewing process must be correctly operated to avoid problems such as excessive thread ends, uneven standing, lack of three-dimensionality, uneven bottom, and easy thread detachment.
For sewn non-woven bags, you can choose experienced manufacturers to customize them to ensure product quality.

2. Production efficiency
The production efficiency of sewn non-woven bags is lower than other processes, which may result in an inability to meet customer demand when the order volume increases.

solution:
Invest in advanced non-woven bag equipment, such as one-time molding non-woven three-dimensional bag machine, to improve production efficiency.
Optimize production processes and increase efficiency by automating slicers and strippers.

3. Cost control
The labor cost of sewing non-woven bags is higher, which may increase the cost of the product, and is not as cost-effective as voltage-processed non-woven bags.

solution:
Adopt advanced production technology, such as voltage technology, to reduce labor costs.
While ensuring product quality, choose affordable fabrics and materials.

4. Printing issues
The printing process of non-woven shopping bags may encounter color difference problems, and the colors on the computer screen may differ from the actual printed colors.

solution:
Before printing, accurate international PANTONE color numbers are provided to ensure color accuracy.
During the printing process, choose a professional printing manufacturer. They usually have a professional color management system to control color difference.
The above are some common problems and their solutions that may be encountered during the sewing process of non-woven shopping bags. By taking appropriate measures, these problems can be effectively avoided and solved to ensure product quality and market competitiveness.

9.How to deal with sewing thread ends of non-woven shopping bags

There are many ways to deal with the sewing thread ends of non-woven shopping bags. Here's how to deal with it:

Method 1: Use scissors
This is a common approach and the steps are as follows:

Prepare tools: Have a pair of scissors ready.
Locate thread ends: Find the thread ends that need to be processed.
Cut the threads: Use scissors to cut the threads right next to the bag.

Method 2: Use electric trimmer
This is a more efficient method, especially suitable for processing large amounts of thread. Specific steps are as follows:

Get your tools ready: Have an electric trimmer equipped with an air hose and suction device ready.
To operate the electric trimmer: start the electric trimmer and the suction device, and touch the scissor part to the back of the embroidery (in this case, a non-woven shopping bag). The threads will be blown by the air sucked in from the suction tube. The tail end of the thread is bent toward the suction port. When the cutting edge of the cutting tool of the electric trimmer contacts the root of the thread, the thread can be cut off and sucked into the suction pipe.

Method 3: Use a thread trimmer
This is a more professional processing method and is suitable for occasions where there are many production thread ends. Specific steps are as follows:

Prepare tools: Have a wire trimmer ready.
Operate the thread trimmer: Place the non-woven shopping bag on the thread trimmer, and the thread trimmer will quickly and cleanly cut off all the threads.
All of the above methods can effectively deal with the sewing thread ends of non-woven shopping bags. Which method to choose depends on the specific situation and needs. In actual operation, you should pay attention to safety, avoid cutting your fingers, and keep the work area tidy.

10.Environmental protection standards for non-woven shopping bags

As an environmentally friendly product, non-woven shopping bags' environmental standards mainly include the following aspects:

Material environmental protection
The material of non-woven shopping bags should be environmentally friendly and contain no substances harmful to the human body. Non-woven shopping bags are usually made of non-woven fabric, which is a new type of environmentally friendly material that is moisture-proof, breathable, flexible, lightweight, non-combustible, easy to decompose, non-toxic and non-irritating3. In addition, non-woven shopping bags should be able to decompose quickly after the end of their service life and not cause long-term pollution to the environment. According to the FZ/T64035-2014 standard, non-woven shopping bags should meet specific environmental protection requirements.

Environmental protection of production process
During the production process, the impact on the environment should be minimized. This includes reducing energy consumption, reducing waste generation, using environmentally friendly production processes, etc. For example, some non-woven shopping bags use environmentally friendly production processes such as spunlace or pulp air-laid.

Longevity and reusability
Non-woven shopping bags should have a long service life so that consumers can reuse them over a longer period of time, thereby reducing the impact on the environment.

According to some studies, the service life of non-woven shopping bags can be up to 5 years. In addition, non-woven shopping bags should be designed to be easy to clean and reuse to further improve their environmental performance.

Environmentally friendly waste disposal
When non-woven shopping bags reach the end of their useful life, they should be able to be recycled through appropriate recycling and processing procedures, rather than being thrown away randomly. This requires establishing a complete recycling system and encouraging consumers to participate in recycling activities.

Printing environmental protection
If patterns or advertisements are printed on non-woven shopping bags, the printing ink used should comply with environmental standards, contain no harmful substances, and should not produce excessive environmental pollution during the printing process. Some non-woven shopping bags use environmentally friendly printing methods, such as water-based elastic glue printing and gravure printing.

To sum up, the environmental protection standards of non-woven shopping bags involve many aspects such as their materials, production process, service life, waste treatment and printing, aiming to ensure the impact of non-woven shopping bags on the environment throughout their life cycle. minimize.