Points needing attention in making kraft paper bags

Posted on Aug 31.2022

What is a kraft paper bag? Kraft paper bags are bags made from kraft paper - a type of paper made from the chemical pulp of cork tree trunks. Kraft paper bags are also called recycled paper bags. The look of this paper bag is becoming more and more

Kraft paper bag manufacturers are more concerned about the issues, what are the precautions for making kraft paper bags? When you need to produce kraft paper bags, this article can help you make the best solution.




What is a kraft paper bag?

Kraft paper bags are bags made from kraft paper - a type of paper made from the chemical pulp of cork tree trunks. Kraft paper bags are also called recycled paper bags.

The look of this paper bag is becoming more and more popular these days. When plastic bags were increasingly boycotted, the bags took the throne. Because, when used, it is extremely safe for people and the surrounding environment.

That's why it has gained so much buzz from the moment it appeared on the market. Kraft paper bags are trusted and used by many people. If you are dealing in food, food, fruit or fashion products, cosmetics. Then perhaps, the kraft paper bag is a choice not to be missed.


Features of Kraft Paper Bags

Kraft paper comes in a variety of sizes and colors for many types of products.

The basic colors are golden brown and light yellow. In particular, some kraft paper bags are white because they are bleached or dyed by chemical techniques to increase their aesthetics.

Quantities range from 50gsm – 80gsm (for food packaging); from 135gsm – 280gsm (for bags); from 300gsm – 440gsm (for containers)…

Kraft paper is rough, tough and highly elastic. However, they cannot withstand strong shocks.

Good ink absorption, suitable for printing logos, product information, etc.

Certain types of kraft paper bags are also water and moisture resistant.

The decomposition time is short, only 3-6 months. Kraft paper bags are a great alternative to plastic bags in the environmental cause.


The use of kraft paper bags

Used to protect the product from dust, sunlight, direct impact, moving from one place to another.

For wrapping fast food, it can ensure food hygiene and safety. On the other hand, kraft paper bags do not contain toxic substances and are safe for the health of users.

Used for packaging of candy, snacks, instant noodles and other foods.

For storing medical products, pharmacies such as medicines, cotton swabs,...

Used to store cement powder.

For clothing, design, printing...

Use as a label for business cards, clothes.

It can be recycled to make student notebooks, cartons, etc.


Precautions for printing kraft paper bags

There are many kinds of kraft paper, so the styles of paper bags are also very diverse, and you can choose freely according to the product. When printing kraft paper bags, you need to keep a few things in mind for best results.

1. Kraft paper bags are only suitable for certain types of goods

Despite its many uses, the truth is that kraft paper bags are only suitable for certain types of goods. Kraft paper bags are suitable for fashion, jewelry accessories, cosmetics, prepared foods, handmade products, etc.

Fresh produce, in liquid or gel form, should never be placed in paper bags at all. Because only some types of kraft paper bags are waterproof, but the effect is not very good.

2. You need to choose the appropriate paper weight

The weight of the goods at the time of printing will determine the grammage of the paper. What you need to do is determine what the weight of the product is.

For example, if you want to print kraft paper bags for clothes, you must choose a quantity from 135gsm - 280gsm. If it is lower, the bag will be difficult to fit, causing the bag to tear when you try to tuck it in.

3. Need to choose a suitable design model

According to the market trend, according to the company's product development direction, choose the appropriate design. Kraft paper bags come in many beautiful designs. Bags are available in round or square shapes, bags with flaps or with handles and other design models.

You should not be too picky about the design and obfuscate many details, but you should pay attention to logo symbols, brand characteristics. Currently, the most popular company prints kraft paper bags with paper strips, which are simple and equally sophisticated.

4. Need to choose the appropriate printing color of paper bag

The color of the printed paper bag is very important relative to the bag as a whole. At the same time, the disadvantage of kraft paper bags is that the printing color is more finicky, because their primary color is tan. You only need to choose the color of the paper bag printing to highlight the logo, product information, and just right with the nature of the product, it will add points to your product.

From paper straws to PLA straws, what are the alternatives to plastic straws after the "plastic ban"?

Posted on Aug 26.2022

From paper straws to PLA straws, what are the alternatives to plastic straws after the "plastic ban"?

"Have a cup of succulent grapes, a cup of hawthorn strawberries..." As soon as the order came, it was my turn to play. I am a straw, ordering milk tea and drinking beverages is indispensable to me. Since the "plastic ban" in Hainan, a lot of changes have taken place in a small straw.

From December 1, 2020, Hainan's first batch of "plastic ban" list was officially implemented. Disposable bags and tableware containing non-biodegradable polymer materials, including shopping bags, daily plastic bags, dishes, plates, beverages Cups (including lids), straws and other products are listed among them.

During that time, our paper straws seemed to usher in the spring. Due to the relatively mature processing and production technology, stable quality and relatively low cost, most of the restaurants in the market chose me as the initial substitute, and some milk tea shops will still be in Customers are reminded on the platform: Respond to the call for environmental protection and use paper straws.

But after a while, I heard different voices: "The paper straws are soaked soft before the milk tea is finished", "The mouth is sticky and smelly", "It will overflow foam when used to drink carbonated drinks"... I understand, these Tucao is caused by my obvious shortcomings and poor experience.

As an alternative to plastic straws, PLA straws were also "on the job" at about the same time as me. This foreign name actually refers to the bio-based polylactic acid straw.

In terms of user experience, PLA straws perform well. They have high toughness, strong impact resistance, and will not become soft when soaked in beverages. Everyone's comments on it are good. But it has a disadvantage, it is afraid of hot, and the degree of high temperature resistance is limited. Therefore, it has also encountered a career development "bottleneck" like me - how to better improve its own performance and meet consumer needs.

Unlike me, PLA straws are a new type of degradable plastic. It is made of starch raw materials extracted from renewable plant resources such as corn. It has good biodegradability and can be completely degraded by microorganisms in nature after use. .

A researcher tested my "new colleague", and under laboratory conditions, it can be completely degraded in about 180 days, eventually becoming carbon dioxide and water. The decomposition of a plastic straw will take hundreds of years.

Not only plastic straws, in human life, 79% of the plastics that are discarded after use go into landfills or the natural environment, and this part of plastics forms plastic pollution. After a long period of time, these plastic wastes entering the environment will be broken into fragments smaller than 5 mm under the action of the natural environment, that is, microplastics. Microplastics may be ingested by animals, or enter the marine environment, or pollute soil water quality, etc., and ultimately affect the ecology and human health.

In this way, our entire "family" of alternatives has a "mission", and we are here to reduce plastic pollution. In order to complete the "task" well, we need to have basic "vocational skills" that are green, environmentally friendly, degradable, and easy to use.

After the "plastic ban", many new faces appeared in our industry, such as bamboo straws and coffee grounds straws. We recommend that you use less disposable straws, whether paper or plastic, if not necessary.
Which is better, PLA straw or paper straw?

Posted on Aug 25.2022

PLA straws are also called polylactic acid straws. The raw material polylactic acid is mainly derived from starch in corn and other grains, and is formed by polymerizing sugars in starch.

PLA degradable straws

1. Renewable raw materials

PLA straws are also called polylactic acid straws. The raw material polylactic acid is mainly derived from starch in corn and other grains, and is formed by polymerizing sugars in starch.

2. Completely degradable

It has good biodegradable properties. After being used and discarded, it can be decomposed into CO2 and H2O within 45 days, and it will not cause any pollution to the environment. It is a very good environmental protection material.

3. Comfortable to use

Its temperature tolerance is generally -10°C to 80°C, which is close to plastic straws. It has the same physical properties as traditional plastic straws, and it will not cause discomfort during daily use.

4. One-time molding

Using a one-time extrusion molding process, using a new type of screw extrusion, the heated and melted PLA ions are extruded through the die and cooled by the water tank under the pressure of pressure, and then cut into various specifications of straws.

5. Biosafety

After being extruded at high temperature, PLA straws have higher thermal stability and better solvent resistance. The gloss, transparency and hand feel of the straw are better, and various physical and chemical indicators meet the requirements of food safety regulations.


high price

The price of degradable PLA straws on the market is about 1 cent, and the high temperature resistant PLA straws are as high as 1 cent and 5, which is 2-3 times that of plastic straws.

Faced with the problem of high prices, it is necessary to improve production technology, production efficiency, and reduce costs through production equipment and raw materials.

paper straws advantage

1. Environmental protection and saving of raw materials

The raw materials of paper straws are different pulps, which are recyclable, easy to degrade, and environmentally friendly.

2. Safe and harmless

It is more user-friendly, and there is no damage that may be caused by sharp burrs.

3. Lower cost (higher than plastic straws)

Paper straws are about 7 or 8 cents, which is 1.5 times that of plastic straws.


1. Poor sense of use, easy to become soft, scattered or rotten

When drinking hot beverages, it usually takes a long time to drink. The paper straws are soaked in hot water for a long time, and they will basically become soft, rotten or scattered.

2. The cover cannot be directly pierced

Since the surface of the paper straw is smooth and free of sharp burrs, the slanted mouth is not sharp, and it is difficult to pierce when tying milk tea or beverage wrappers, which greatly affects the mood.

3. There is a shelf life, and there are requirements for the preservation environment

Generally, paper straws should be stored in a dry environment. Even if they are sealed, most of the sealed materials are paper-based. Even if they are not, there are gaps between the material molecules, and they will become soft in a humid environment for a long time. .

In order to solve these problems of paper straws, it is necessary to add plastic reagents or lamination treatment, and replace the sticky glue of paper straws. After these treatments, its degradability will also be reduced, and its environmental protection will also deteriorate.

After comparison, it is not difficult to see that the PLA straw is still better!
After the traditional plastic straw, the paper straw gradually faded out of the market. What is the reason?

Posted on Aug 24.2022

After the traditional plastic straw, the paper straw gradually faded out of the market. What is the reason?

In recent years, the most popular food and beverage industry is a variety of milk tea, with a variety of patterns, themes and joint names. The global sales of milk tea is booming, which also increases the use of related consumables, such as cups, cup caps and straws.

And what we want to talk about today is this humble straw

We usually use straws, but do you really feel the changes?

More than a year ago, the most stringent "ban on plastic" in history came into effect, stipulating that the use of non degradable disposable plastic straw is prohibited in the catering industry throughout the country.

According to reliable data, the cumulative output of plastic products in China in 2019 was 81.84 million tons, including nearly 30000 tons of plastic straws, about 46 billion, and more than 30 per capita. According to industry experts, the use time of plastic straws is only a few minutes, but the degradation time may be as long as 500 years! This is a very frightening and thought-provoking data.

With the issuance and implementation of the "plastic ban order", plastic straws were quickly replaced by paper straws, but this is still not a long-term solution. However, with the emergence of degradable materials such as polylactic acid (PLA), the straw industry has ushered in great changes!

Detailed description of PLA materials

PLA degradable straw has very good natural decomposability. It seems to be produced to replace plastic. Once the straw made of such degradable material as PLA is launched, it will receive good feedback from the market.

Raw materials for producing degradable PLA straw

Today's milk tea is different from the past. More and more small materials such as pearls, coconut nuts, taro balls, milk jelly, taro puree, etc. have also led to the multi standardization of milk tea straws. And we have also made PLA degradable straws through multiple debugging and trial production, and have also made various characteristics that can replace plastic straws.
Types of use of kraft paper bags

Posted on Aug 23.2022

Types of use of kraft paper bags

Kraft paper bags are more and more popular in today's environmental protection, and more and more stores are beginning to use kraft paper bags for packaging design. What are the characteristics of kraft paper bags and the production process?

Kraft paper bags are non-toxic, odorless, and zero-polluting, conform to my country's environmental protection level, have high toughness and high environmental protection, and are one of the most fashionable plastic packaging materials in the world at this stage. Generally suitable for chemical raw materials, food, pharmaceutical preservatives, building decoration materials, shopping in supermarkets, clothing and other manufacturing industries that are suitable for kraft paper bags.

We can sort out this kind of portable paper bag with many applications into two categories.

One is the popularized packaging bag, the general paper bag. Most of these paper bags use rotating packaging printing and automated production lines to make packaging bags. The raw materials for making paper bags are mostly packaging paper. The specifications and styles of paper bags are relatively rigid, and their advantages are high production efficiency and suitable for mass production. .

The other type is beautiful and elegant kraft paper bags. This type of paper bag is generally printed on a piece of paper, relying on hand-made or fully automatic production. Packaging paper, coated paper, and gray board paper are often selecte d as raw materials for the production of processed paper bags. Most of them are used in high-end clothing packaging, tote bags or advertising bags for various large-scale events. The characteristic is that paper bags of all shapes and sizes can be produced, but the processing technology is complicated and the productivity is low.
Kraft paper will be the main material for future packaging

Posted on Aug 22.2022

Kraft paper will be the main material for future packaging

With the rapid development of society, all walks of life are constantly innovating and developing new products to attract consumers, and they are also paying more and more attention in the field of packaging. Kraft paper, this timeless packaging material, has become more and more popular among packaging manufacturers and consumers. Consumer recognition, why everyone likes the material of kraft paper?

1. Simple retro trend

Over the years, there has been a trend of minimalist design and retro fashion. Maybe everyone is tired of the colorful style before, whether in the fashion circle, electronic product packaging or furniture decoration, they are pursuing a simpler and more retro design style.

2. Fashion and Personalized Expression

The unique style and distinctive appearance of kraft paper tape is a personalized expression, different from various plastic packaging products. stands for packaging. Kraft paper has a unique natural color. Compared with the actual effect required by other complicated printing technologies, kraft paper can achieve a unique visual sense only with simple production, processing and packaging printing. Methods to express corporate philosophy and image.

3. Green environmental protection recycling

Kraft paper can emerge suddenly in the packaging industry, and it is closely related to environmental protection. Kraft paper is recyclable and can be degraded by microorganisms, and the characteristics that it will not cause pollution and damage to the environment are very important factors. From the promulgation of the "Plastic Restriction Order" in 2008, it is not difficult to see that plastic products do not conform to our concept of sustainable development.