What is the production process of eco friendly shopping bags, and what is the production method of e

Eco-friendly shopping bags generally use the screen printing process, which is often referred to as "silk screen printing", which has always been a common printing process used by many manufacturers. Generally, it is printed manually, so the color control on the process is not easy to control, so many new non-woven printing methods have emerged

However, with the continuous improvement of customers' requirements for product printing and environmental protection, many new non-woven printing methods have emerged

1. Watermark. It is named because it uses water-based elastic glue paste as the printing medium, which is more common in textile printing, also called printing. When printing, the color paste and water-based elastic glue are mixed.

The plate is processed without chemical solvents and can be rinsed directly with water. It is characterized by good tinting strength, strong coverage and fastness, washability, and basically no odor.

2. Gravure printing.

The finished product processed by this method is usually called laminated non-woven bag. This process is divided into two steps, that is, the traditional gravure printing process is used to print ** on the film, and then the film with the pattern is laminated on the non-woven fabric by the laminating process. Generally, non-woven bags printed with large-area color patterns are printed with this process.

It is characterized by exquisite printing, the whole process is produced by machine, and the production cycle is short. In addition, the product has excellent waterproof performance, and the durability of the finished product is also better than that of non-woven bags produced by other processes. The film is available in glossy and matte finishes, and the matte has a matte finish!

The disadvantage is that it conflicts with the concept of environmental protection, because the film is difficult to degrade.

3. Thermal transfer.

Thermal transfer printing belongs to special printing in printing! This method requires an intermediate medium, that is, the ** is first printed onto the heat transfer film or heat transfer paper, and then the pattern is transferred to the non-woven fabric by heating the transfer equipment. The medium commonly used in textile printing is thermal transfer film.

Its advantages are: exquisite printing, rich hierarchical editions, comparable to **. It is suitable for small-area color image printing.

The disadvantage is that it is high and the printing cost is high.

Companion Mountain Meeting] eco-friendly shopping bag production super practical DIY handmade.

Step 1: Lay the old t-shirt flat on the tabletop. As shown in the figure below:

Step 2: Cut the left sleeve of the t-shirt along the seam at the shoulder. As shown in the figure below:

Step 3: Cut the collar of the t-shirt along the seam of the neckline, and cut the neckline wider if you want the opening of the shopping bag to be large. As shown in the figure below:

Step 4: Cut the hem of the t-shirt into a strip about 8 cm long and 1 cm wide. As shown in the figure below:

Step 5: Turn the t-shirt over and the shopping bag is complete. As shown in the figure below:

Companion Mountain Meeting] eco-friendly shopping bag production super practical DIY handmade.

In 1845, the chemist Sabertan who lived in the northwestern Swiss city of Basel was conducting experiments at home when he accidentally touched the concentrated sulfuric acid and concentrated nitric acid on the table, and he hurriedly picked up his wife's cloth apron to wipe the mixed acid on the table. After the chaos, he hung his apron by the stove to dry, but the apron burned with a "poof" and turned to ashes in an instant. Cybertron returned to the laboratory with this "major discovery" and kept regenerating "accidents".

After many experiments, Cybertron finally found the reason: it turned out that the main component of the cloth apron was cellulose, which came into contact with a mixture of concentrated nitric acid and concentrated sulfuric acid to form nitrocellulose lipin, which was later widely used as nitrocellulose.

One of the materials used in photography is "glue", which is a "nitrocotton" solution, that is, a nitrocellulose solution in alcohol and ether. At that time, it was used to glue light-sensitive chemicals to glass to make an equivalent similar to today's photographic film.

In the 50s of the 19th century, Parks looked at different ways to deal with rubber wool. One day, he tried mixing rubber wool with camphor. To his amazement, the mixture resulted in a bendable hard material. Parks called the substance "Paxin," which was the first plastic.

The invention of plastic bags has brought great convenience to human life, but more and more people do not know how to effectively use environmental protection, which has led to the globalization of plastic bag pollution.

Compared with traditional plastic bags, the advantages of eco-friendly bags:

1. The water solubility speed can be designed and selected, completely dissolved in water, non-toxic and non-polluting;

2. Strong tensile degree and good tension;

3. High transparency and good luster;

4. High softness and good touch;

5. Good oil and solvent resistance, heat sealable and printable;

6. Low air permeability coefficient and good air resistance;

7. Plastic buckles or self-adhesive plastic bags can be added;

8. Excellent antistatic performance, no vacuuming, etc.

9. It can be degraded by water, air, sunlight and biodegradation. Usually in about a month, it can be decomposed into harmless substances.

<> "Woven Bags Transform Eco-friendly Shopping Bags.

1. Buy a woven bag with green plants to wrap your pants.

2. The rectangular bottom is stitched.

3. Align the two sharp corners.

4. Fold it in half and fix the two corners.

5. Make a comparison of the bottom of the hole and the width of the hole. Na Chun trembles.

6. Fixing the strap can be completed.

More cutting-edge shopping bags are made of PBAT and PLA composites, which are more expensive but are fully biodegradable plastics.

Now environmental protection is only relative, that is, starch is added to PP or PE, and the starch is degraded after being thrown away, but PP and PE are still there, but they are not degraded like all plastics before. Fully degradable environmentally friendly plastics have not yet been industrialized on a large scale, such as polycarbon dioxide and polylactic acid.

Now they are plastic bags made of polyethylene and different amounts of calcium carbonate! Due to strength, forming and welding, the content of calcium carbonate should not be too large!

【Eco-friendly portable plastic bags】Generally speaking, there are no completely environmentally friendly plastic bags, only some plastic bags are easy to degrade after adding some ingredients. That is, degradable plastics. The main material is generally low-pressure polyethylene plastic, and a certain amount of additives are added in the production process of plastic packaging products, such as starch, modified starch or other cellulose, photosensitizers, biodegradants, etc.

Environmental protection plastic bags] include recycled plastic bags and new plastic bags. In the process of producing plastic bags, the plastic bags with degradable masterbatches are called degradable plastic bags, and the degraded plastic bags can be automatically decomposed after 90 days under certain conditions.

How to make an eco-friendly bag is as follows:

1. The choice of environmental protection bag material.

Nowadays, most of the customized gift bags will choose to use only white canvas or other stronger fabric styles. No matter how the eco-friendly bag has a sense of design, its specific role is to seal all kinds of objects in the bag.

Because of these regulations, the world bureau has certain standards for the material of environmental protection bags. It is not possible to use milder materials, and it is not resistant to dirt in addition to being not strong, so it is very difficult to use. Therefore, when you choose a custom environmental protection bag, the choice of material is very important, and you can choose a more durable material as much as possible to have a long service life, which should be paid attention to.

2. The design of the contents of the environmental protection bag.

Merchants give eco-friendly bags as a promotional gift, and the key purpose is to promote the product and the company. Therefore, we must pay great attention to the content design of the environmental protection bag. It can reflect the culture and art of the trademark and its company, so it is more meaningful to use it as a promotional product.

When designing the content of the eco-friendly bag, it is necessary to communicate effectively with the designer for a period of time, so that the company's ideas can be told to the designer, and then the intention of the business can be expressed according to the content. Therefore, when customizing environmental protection bags, the content design of environmental protection bags must be paid attention to.

3. The choice of environmental protection bag style.

There are many choices in the style of environmental protection bags, such as square and square, or other short horizontal rectangular types. When customizing eco-friendly bags, you must make the choice of style according to the key audience of the business. If the majority of consumers are housewives, the bag needs to be as big as possible, and you can bring a variety of items.

If you are a group of students, you can choose a relatively short eco-friendly bag, which can put books. Therefore, when customizing, you must pay attention to the choice of eco-friendly bag style.

If you customize an environmental protection bag, you can actually customize it online, ** is particularly cheap, and there are two yuan of hair, which is not only affordable but also has a lot of quantity.

The larger the size of the bag, the higher the **, and the width of the fabric should be considered as much as possible when designing the size of the eco-friendly bag. If the size of the product does not match the width of the fabric, it may cause a lot of waste and cause the **** of the bag to rise.

Many businesses will unify the customization of environmental protection bags, and the procedures for customizing environmental protection bags should be selected according to their own needs to choose the size and rules of environmental protection bags. Then provide your own logo.

General dry goods.

It is recommended to use national waste or European waste to control the production of base paper according to the technical indicators of grade A or B kraft containerboard. The surface layer can be hung noodles or not, depending on whether complex patterns and advertisements are printed. The dosing of paper sheets can be carried in 135 150 g paper bags weighing up to 8 to 15 kg.

Cargo that needs to withstand a certain amount of moisture.

It is also possible to use full waste paper. However, on the basis of the above standards, a certain amount of wet strength agent is added, and the wet strength reaches 10 15% dry strength.

Meat or other wet goods.

Shopping bags can also be made from waste paper. This requires the addition of an environmentally friendly oil repellent to the pulp or to the surface during the papermaking process. It can also be sprayed with water-soluble or degradable resin on kraft containerboard with good surface strength.

Waste paper clamped paper.

Many manufacturers in Chinese mainland have developed all-waste paper clamping paper. That is to say, when making paper, water-soluble yarn is added between the two layers of slurry combined with the textile principle, and one layer of this kind of paper can reach the strength of four layers of kraft paper, which can completely replace ordinary cement bag paper. Similarly, single-ply paper can be used on shopping bags.