What is self adhesive pressure sensitive seal gasket

What is self adhesive pressure sensitive seal gasket

Ⅰ. Product description:

  1. The pressure-sensitive gasket is a single-piece pressure-sensitive adhesive gasket, which is non-toxic, odorless, strong in sealing and good in chemical performance;
  2. It can seal plastic bottles (PE, PET, PP, PS, etc.) etc.), glass bottles, metal bottles and tubes, etc.;
  3. It is suitable for packaging of products such ascream, honey, jam, solids, colloids, dry powders, granules, etc;
  4. There is no need to add any equipment during use, and it has simple operation, convenient use and good sealing performance.
  5. The pressure-sensitive gasket can print the customer’s pattern, text and other information.

Ⅱ,How to use:

  1. Cleaning: the bottle mouth should not have water, oil and other substances, it should be a complete plane, and there should be no gaps, bumps, burrs, etc.
  2. Put the pressure-sensitive gasket on the bottom of the bottle cap ( The printed side faces the bottom of the bottle cap and the blank side faces the bottle mouth), and the adhesive sealing layer should be kept clean and not contaminated;
  3. Tighten the bottle cap (more than 2 hours);
  4. Unscrew the bottle cap, the pressure-sensitive gasket and the The closure is completed when the mouth of the bottle forms a strong seal.

Ⅲ, Product attributes:

  1. Thickness of pressure-sensitive gasket: 0.6mm, 1.0mm, 1.5mm, 2mm;
  2. Width of pressure-sensitive gasket coil: 330mm, 350mm;
  3. Structure: printing layer / PS foam layer / sealing adhesive layer

Ⅳ,Product application:

Suitable for sealing packaging in pharmaceutical packaging, health care product packaging, food packaging, cosmetic packaging, and other chemical packaging industries.

We focus on high quality gasket and seal liner for bottle lid. Welcome to contact.

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Things you need to know when seal aluminum foil seal

Things you need to know when seal aluminum foil seal

Below are couples of things you need to avoid when sealing aluminum foil seal, thus to increase your rate of success.
1. The bottle cap is not tightened (this problem only needs to be solved by tightening the bottle cap every time it is sealed)
2. The bottle mouth is not flat ( it is a quality issue for the bottle, you need to find a reliable supplier)
3. The bottle mouth has very obvious burrs
4. There is dust or other attachments on the bottle mouth.
5. The heating power and the running speed do not match.
6. The sealing box is inclined, resulting in an unbalanced induction temperature.
7. When adjusting the position of the bottle on the conveyor belt, it must correspond to the downward arrow on the equipment and be in the center state.
8. There is a lot of dust in the sealing box, and the dust needs to be cleaned.
9. The adjustment distance between the bottle mouth and the sensing surface is too far.
Hope this is helpful for you. And welcome to contact us to get the aluminum foil seal.

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Why use aluminum foil seal for bottle?

Why use aluminum foil seal?

Aluminum foil seal can block the product inside the container from direct contact with the outside air. It can keep the quality of the product unchanged for a long time, and alleviate the bottleneck chipping caused by handling or transportation.

The advantages of foil seal gaskets: dustproof, waterproof,anti-breakage,moistureproof

Seal foil is widely used in PET, PE, PP, PVC, PS, ABS, metal, aluminum and glass bottles containers.

Machines required for pressure-sensitive foil sealing gasket:

Generally, no sealing equipment is required.
1) Insert the pressure-sensitive gasket into the bottle cap with the letter side facing up, the white side facing down
2) Tighten the bottle cap.

Machines needed for aluminum foil gasket sealing:
1. Hand-held sealing equipment
1) Insert the aluminum foil gasket into the bottle cap so that the aluminum foil is facing outwards
2) Tighten the bottle cap and place it on the sealing machine
2, Auto machine: Adjust the power and time of the sealing machine, press the red switch buttom.
The sealing equipment of the automatic production line can be operated according to the specific sealing equipment manual.

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Introduction of electromagnetic induction aluminum foil sealing

Introduction of electromagnetic induction aluminum foil sealing

Electromagnetic induction aluminum foil sealing machine is widely used in the sealing of containers of medicines, liquid medicines, spices, detergents, milk, beverages, food, chemical products, etc., and plays the role of sealing, anti-counterfeiting and anti-theft. The equipment uses the principle of electromagnetic induction to instantly generate high temperature on the aluminum foil on the bottle mouth, and then fuse the aluminum foil on the bottle mouth to achieve the function of sealing. It has good moisture-proof, mildew-proof and anti-counterfeiting effects, thereby prolonging the storage time of items.



1, Definition of electromagnetic induction sealing.

Electromagnetic induction sealing, that is, using an aluminum foil sealing machine to heat the aluminum foil sealing pad, so that the heat sealing layer of the aluminum foil sealing pad is heated and melted, and the heat sealing is made under a certain pressure. The layer is bonded to the bottle mouth, so as to achieve the function of sealing the bottle mouth.

2, Principle.

The working principle of the electromagnetic induction sealing machine used in the packaging process is the same as the working principle of the induction cooker that people use every day.

It applies the “eddy current effect” of physics, that is, alternating The magnetic field generates an electric field, and the conductor in the electric field generates an electric current.

When the electric current passes through the foreign body, the electric energy is converted into heat.

3, Use.

This sealing process is suitable for most items that need to be protected from contamination.

For example, chemicals such as medicines, food, beverages, pesticides, and petroleum oils can not only effectively protect the products, but also avoid the accident of being overturned, spilled, squeezed and spilled, or maliciously put into other items and damaged.

In addition, electromagnetic induction has the advantages of reducing costs and management costs for sealing machines.

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What is PCR plastic?

Detailed analysis of PCR materials

The pollution problem of ordinary plastics is becoming more and more serious.  The protection of the sustainable development of the ecological environment has become the consensus of people in daily life. The recycling of packaging materials is currently one of the important ways to solve such problems.

As a company with a sense of social responsibility, our factory can now use PCR(Post-Consumer Recycled) plastic to produce bottles. Let’s show everyone what pcr materials are.


1. What is  PCR material?

PCR is Post-Consumer Recycled in English, which generally refers to the recycling of plastic after use. The recycled plastic particles are mixed with the original resin to produce a variety of new plastic products.


2. PCR material production process
The production of PCR materials includes processes such as manual roughing-automatic machine sorting-washing-modified granulation.

1). Manual rough selection is mainly used to manually distinguish used plastic products according to different colors and different materials.
2). Automatic machine sorting is to use near-infrared automatic sorting production line, large electrostatic sorting production line, color sorter and other equipment to further classify materials according to color and material.
3). Cleaning is to remove the stains, electroplating layer, oil spray layer, etc. on the surface of the material through water washing and rapid friction.
4). After the above process, raw materials with a single material and basically the same color are obtained;

After the raw materials are divided into batches, the performance of each batch is tested for use. Then according to the customer’s requirements for product performance and color, the raw materials are modified and color-matched and granulated.

3. The impact of PCR on the environment
PCR materials can help the country’s carbon neutrality, promote the recycling of resources, turn waste into treasure, greatly reduce the waste of resources. It also means that fewer waste plastics are buried, incinerated and exist in the natural environment, reducing environmental pollution.








4. Tips for use
After a lot of experimental data, our factory suggests that customers should consider the percentage of PCR when choosing PCR material bottles.
1)Transparent bottles should use no more than 30% PCR.
2)Seml-Translucent bottles should use no more than 50% PCR.
3)Solid color bottles do not exceed 100% PCR.

Canvard Packaging Mission: Customer satisfaction on product qualities and services, is committed to create the industry’s core competitiveness.

We have thousands of plastic containers, some of them are private mould from our trusted customers. Our focus is to develop innovative cosmetic items, so we are willing to create the new design for more clients.
We offer full service for our clients, it includes design, manufacture and transport, we guarantee the good quality products

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Are there still any advantages to purchasing plastic bottles from China now?

Are there any advantages to purchasing plastic bottles from China now?

This year, international shipping costs have skyrocketed, and many customers have reduced their purchases of plastic packaging bottles from China.

Indeed, ocean shipping is one of the most important modes of transportation in international logistics.

Goods transported between ports in different countries and regions are mainly carried out by sea. However, recently, due to the shortage of space, European and American routes have been suspended on a large scale.
In addition, in the case of rising freight rates on Southeast Asian routes and shortage of capacity, many shipping companies have begun to levy additional charges such as congestion surcharges, peak season surcharges, and shortage of containers.

So, besides sea shipping, does international rail transportation have certain advantages now?

1. Advantages of International Rail Transport
Advantage ①: Low price.

The tariff of international railway transportation is relatively low, and even to some countries, it is lower than that of international sea transportation. Take Europe as an example. In the past, the price of international rail transportation could be as low as RMB 7.5/kg, while the price of ocean freight was around RMB 10, and the price gap was obvious.

Advantage ②: Stable logistics timeliness.

The logistics and timeliness stability of international railway transportation can be said to be the best.
According to data released by relevant railway departments, the punctuality rate of trains from China to Europe is as high as 99%, and the stability of the timeliness of freight is very guaranteed.
In addition, railway transportation is less affected by natural environmental disasters and has strong continuity.

Advantage ③: A wide range of goods to be carried.

International rail transport can transport all kinds of sensitive items, such as European rail transport, live items, supporting batteries, liquid items, wet tissues, cosmetics and other electrical items. In addition, there are railway channels that can carry pure batteries, which is currently the only railway transportation channel that can carry pure batteries.
Advantage ④: sufficient capacity.

The international railway lifts 15 kg, unlimited weight, can carry more than 100 kg of goods, and has a large carrying capacity. In terms of transportation capacity, more than ten cities in China have opened trains between China and Europe. There are enough trains to reach Europe and there is enough freight capacity.

2. Disadvantages of International Rail Transport
Disadvantage ①: Wide range of mail.

One of the shortcomings of international rail transport is the small range of postal services. Shipping can pass through the United States, Canada and the United Kingdom, but railways can only pass through European countries, and other countries are temporarily unable to pass mail, especially North and South American countries, because they are not bordered by the mainland.

Disadvantage ②: slow logistics timeliness

The international railway logistics has a slower time limit. The overall time limit for signing is about 29-35 days, and the fastest route is 19-29 days.

Therefore, for some countries and regions with international railway transportation, it is undoubtedly a good way to reduce the cost of cross-border procurement. It is still very cost-effective to purchase packaging bottles from China at the moment. Welcome to place an order with us.

Founded in 2011, Canvard Packaging has rich manufacturing and export experience to assist customers in safely completing international procurement processes.

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A direct freight rail shuttle from Nansha Port to Europe will open

A direct freight rail shuttle from Nansha Port to Europe will open

Recently, ocean freight has been soaring, which has discouraged many merchants who wanted to purchase products in China. Now the good news is coming. Nansha Port in Guangzhou will open a direct container train to Europe.

Guangzhou Nansha Port Railway is a national class I, double-track electrified railway with a design speed of 120 kilometers per hour and a main line of 88 kilometers in length. It was originally designed as a freight railway.
As the first passenger-cargo dual-track railway to enter the Nansha Free Trade Zone in the Greater Bay Area, the Nansha Port Railway is also an important part of the freight channel in the western Pearl River Delta.

After completion, it will open up the “last mile” of sea-rail-bus transportation and build a port The three-dimensional transportation network of multimodal transportation of railways and highways directly serves the collection and transportation and port-side industries of Nansha Port.

It directly serves the transportation and port-side industries of Nansha Port.

This is important for building a large land-sea transportation channel with Nansha Port as the core, building a strategic fulcrum for the Maritime Silk Road and the Silk Road Economic Belt, building a Nansha Free Trade Port, It is of great significance to enhance the function of Guangzhou as a shipping hub and promote the coordinated development of the Guangdong-Hong Kong-Macao Greater Bay Area.

On November 29, the newly-built Guangzhou Nansha Port Railway completed the replacement of the main line with long track, laying a solid foundation to ensure the opening of freight at the end of the year and the subsequent passenger transport conditions.

By then, the Nansha Free Trade Zone will be able to open a direct container train to Europe, which greatly shortens the voyage of cargo arrival.

Founded in 2011, Canvard Packaging has 10 years of export and production experience and can assist customers in safely completing international transportation processes.

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The ocean shipping procedure of U.S. imports bottle jar from China

The ocean shipping procedure of U.S. imports bottle jar from China


In cross-border trade, there will be imports and exports of goods. American importers who want to import Chinese goods into the United States have to arrange international transportation.


Transnational transportation:


Air or sea transportation can be arranged. This depends on the quantity and weight of the goods. The sea transportation cycle is long, but the transportation price is relatively low. The air transportation cycle is short, but the price is more expensive. It should be selected according to different needs.



Container introduction: International ocean shipment is carried out through containers, which are generally divided into three types of containers: 20GP, 40GP, and 40HQ. The space they hold is also different, 20gp can hold 28cbm of goods, 40gp can hold 58cbm of goods, and 40hq can hold 65cbm of goods. If goods capacity is less than 20cbm, you can choose to ship with friends who have common needs; the cost can be understood as the AA shared type, which is what we usually call shipped out in bulk.

So if you want to import a batch of goods from China to the United States, you need to understand what processes, what qualifications are required, and what you need to pay attention to.

Next, I will tell you about the knowledge:

1. Confirm the trade terms and US importers’ receipts

The shipper firstly confirms the purchased goods, confirms the trade contract with the Chinese supplier and confirms what the trade terms are. Common trade terms are EXW and FOB.

EXW means that the Chinese factory only takes care of the delivery and does not arrange the ocean transportation. The consignee needs to arrange the import transportation and customs declaration,

FOB means that the Chinese factory will deliver the goods to the warehouse in China designated by the American importer, and the domestic consignee’s freight forwarder will arrange vessel booking and custom application.

2. Declaring ISF and AMS

What is ISF?

ISF declaration is the abbreviation of Importer Security Filing, namely “import security declaration”, also called anti-terrorism declaration. It is a requirement of the U.S. Customs for U.S. importers. This is a thing created by the U.S. Customs and Border Protection (CBP) to strengthen U.S. security after the “911 incident”. This is unique to the U.S. A declaration whose purpose is to improve safety supervision.


ISF declaration method: ISF declaration can be declared by the seller or the buyer. If the buyer declares on behalf of the buyer, then the buyer needs to declare through the freight forwarder, and the consignee needs to sign the POA authorization letter with the US agent of the freight forwarder. The freight forwarder will send the US agent information to the consignee, and will also notify the agent that it will also actively contact the consignee, and only after the POA is signed, the goods can be shipped from the port of departure.

ISF penalty: a fine of five thousand US dollars normally.

ISF declaration time limit: The electronic declaration data must be sent to the U.S. customs through the AMS or ABI system 24 hours before the goods are loaded on the ship. In terms of ISF declaration operations, importers can entrust their trusted overseas agents to declare on their behalf.

AMS declaration 

AMS is the abbreviation of the American Warehouse Receipt System.

During the transaction process, they need to be reported to the U.S. Customs through the AMS system.

The simple distinction is: AMS declarations are mainly the information in the bill of lading, and freight forwarders are more controllable during declarations.

The ISF declaration is mainly an entity in the supply chain. Part of the information is in the buyer and part of the information is in the seller, so the buyer usually declares.

3. The import operation process is detailed as follows:   

1). Obtain the necessary documents.   

The shipper provides the bill of lading, invoice and packing list of the goods of foreign customers, and if necessary, a non-wood packaging certificate or fumigation certificate is required. Provide import documents including contract (general trade) to freight forwarder after receipt.

2). Document exchanges   

Freight forwarder checks out the cargo carrier, shipping agent and place of document exchanges. And take the bill of lading to the shipping company to exchange the bill of lading. then contact the station and confirm the cost of carrying the container, the cost of removing the container, the cost of loading, and the return fee.  

3). import commodity inspection   

Through the customs commodity code book can confirm whether the goods need commodity inspection. Imported goods that need to be inspected in advance must go to the Commodity Inspection Bureau for commodity inspection. Commodity inspection also needs to be carried out as soon as possible, generally after the commodity inspection.

4). Import customs clearance   

Forwarders make correct declaration data based on the customs declaration data provided by the shipper and the container number and seal provided by the yard or trailer. The declaration materials include: invoice, packing list, bill of lading returned from shipping company, customs declaration letter of attorney, import goods declaration form, commodity inspection, animal and plant inspection, etc.  

5). Clearance by customs   

Hand over the duty payment slip to the freight forwarder, and the freight forwarder will contact the customs for clearance. That is, one time release.

6). Picking up the container   

After completing the deposit with the documents and materials and authorized by the shipping agent management department, go to the import container post to go through the procedures for picking up the container, receive the container equipment handover form, and check whether the content is correct. After the consignee has unpacked the imported goods, the empty container will be returned to the return location. After the empty container is returned to the yard, the consignee must promptly present the pledge voucher to go to the container management department to settle the container fee.  

7). Delivery   

The freight forwarder or the consignee should contact the trailer to pick up the goods at the shipping agency’s wharf and station with the documents and information. The mortgager goes to the container management department to handle the container mortgage settlement procedures.

Founded in 2011, Canvard Packaging has 10 years of export experience and can assist customers in safely completing international transportation processes.

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7 types of plastic material you have to know when buy plastic bottle

7 types of plastic material you have to know when buy plastic bottle

Nowadays, there are various types of plastic bottles on the market. Consumers are dazzled. Some customers worry about the compatibility of bottles for their products, and some customers worry about the environmental protection of plastic bottles.

As the company’s sense of social responsibility increases, Many brands require or only accept recyclable plastic bottle packaging, so how to choose a high-quality plastic bottle that suits you is worth studying. Now I will provide you with several methods for your reference.

what does these number means?

In the first step, we first look at the material of the bottle. The material is very particular. Different materials can hold different products, and there are certain compatibility issues. Usually there is a label framed by a triangle symbol on the bottom of the bottle. The triangle formed by the three arrows means that the material of the bottle is ‘recyclable’, but this does not mean that it can be reused. Each bottle has its corresponding plastic bottle material type label, which is 1, 2, 3, 4, 5, 6, 7, and each number represents a type of material. If the product is made of several different materials, then what is marked is its main material. Identifying different numbers is to facilitate classification and recycling, and has nothing to do with the “safety” of the bottle. So what does this number mean?


Meaning of number 1, PET


The number 1 in the triangle at the bottom of the plastic bottle: PET polyethylene terephthalate, commonly used for mineral water bottles, carbonated beverage bottles, shampoo bottles, shower gel bottles, alcohol disinfectant bottles, etc. It is well known that beverage bottles made of this material cannot be filled with hot water. They are only suitable for warm or frozen drinks. The bottle is easily deformed if it is filled with high-temperature liquid, and releases harmful substances to the human body. It is not suitable Long-term repeated use or containing acidic substances.


Meaning of number 2, HDPE

The number 2 in the triangle at the bottom of the plastic bottle: HDPE high-density polyethylene, common used for medicine bottles, cleaning bottles, laundry detergent bottles, body wash bottles, shampoo bottles, disinfection bottles, plastic bags, etc.,It can withstand 110 ℃ high temperature. Plastic containers containing cleaning and bath products can be used after careful cleaning, but they are often not easy to clean and leave residues, thus becoming a breeding ground for bacteria, so it is not recommended to use them repeatedly for a long time.


Meaning of number 3, PVC

The number 3 in the triangle at the bottom of the plastic bottle: PVC polyvinyl chloride, common used for raincoats, building materials, plastic film, plastic boxes, pesticide bottles, etc., this kind of material has excellent plasticity and is cheap, so it is more commonly used. However, their heat-resistant temperature is low, and harmful substances may be released during high-temperature decomposition. They are even released during the manufacturing process. After toxic substances enter the human body with food, they may cause breast cancer, birth defects and other diseases in newborns. At present, containers of this material have been less used for packaging food.


Meaning of number 4, LDPE

The number 4 in the triangle at the bottom of the plastic bottle: LDPE polyethylene low-density polyethylene, common used for cling film, etc. Do not wrap the cling film on the surface of the food and put it into the microwave because its heat resistance is not strong. Usually, qualified PE cling film is encountered when the temperature exceeds 110°C, hot melting will occur, leaving some plastic preparations that cannot be decomposed by the human body. In addition, when food is wrapped with plastic wrap and heated, the fat in the food can easily dissolve harmful substances in the plastic wrap. Therefore, when food is put into the microwave oven, the wrapped plastic wrap must be removed first.


Meaning of number 5, PP

The number 5 in the triangle at the bottom of the plastic bottle: PP polypropylene, common ly used for soy milk bottles, yogurt bottles, juice drink bottles, microwave lunch boxes. With a melting point of 167°C, it is the only plastic box that can be placed in a microwave oven and can be reused after careful cleaning. It should be noted that some microwave lunch boxes, the box body is made of No. 5 PP, but the lid is not made of No. 5 PP, so it cannot be put into the microwave together with the box body. To be safe, remove the lid of the container before putting it in the microwave.


Meaning of number 6, PS

The number 6 in the triangle at the bottom of the plastic bottle: PS polystyrene, commonly used for bowls of instant noodle boxes and fast food boxes. Do not put it in a microwave oven to avoid the release of chemicals due to high temperature. After loading acids (such as orange juice) and alkaline substances, carcinogens will be decomposed. Avoid using fast food boxes to pack hot food. Don’t use the microwave to cook instant noodles in a bowl.


Meaning of number 7, PC

The number 7 in the triangle at the bottom of the plastic bottle: PC or other types, commonly used for water bottles, space cups, and baby bottles.It is easy to release the toxic substance bisphenol A, which is harmful to the human body. The water bottle marked with 7 must see whether there is a mark of BPA free (BPA free). Generally, merchants will mark it as a selling point. Found on the body or bottom of the bottle. Do not heat it when using it, and do not expose it to direct sunlight. The common drinking water plastic bottles on the market have been tested by the state and can be used safely.

In summary,  Consumers should try to avoid repeated use of aging and easily deteriorated plastic utensils, and it is best not to reuse beverage bottles for multiple times, otherwise bacteria will easily breed and there will be health risks.

Canvard Packaging Factory reminds consumers that when using plastic containers, they must read the numbers marked in the triangle at the bottom of the bottle. Only when they understand the properties of the materials can they be used in a suitable environment. What is especially important is that Plastic waste is returned to the furnace and recycled products.

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Should the cosmetics company process it by itself or find a foundry?

Should the cosmetics company process it by itself or find a foundry?

Nowadays, the main production model of cosmetics is OEM, including international brands. why?

For merchants with their own cosmetics brands and merchants with mature sales channels, choosing a cosmetics processing factory to process cosmetics is very beneficial.

It can save production costs, improve product quality, reduce the market risk of enterprises, and can Innovation and many other benefits attract more and more cosmetics brands to adopt cosmetics processing mode.

Choosing a suitable cosmetics processing factory is related to the long-term rapid development in the future, so it is very important to inspect a cosmetics processing factory.


So, how to consider whether a foundry has the strength?

1, R&D strength The ability of a cosmetics OEM company determines the height of the product. If a cosmetics OEM factory does not even have a technical research and development center, then the strength of this factory must be evaluated, because the R&D strength determines the product quality and efficacy Good or bad! When investigating the R&D strength of the factory, we need to look at the qualifications of the R&D engineers? What is the industry experience of the R&D engineer? Does the professional engineer have a research room or professional experience in developing various types of cosmetics that meet the standards for customers? How about the equipment in the research room (laboratory)? Does it meet the R&D requirements? Is it scientific? If it is necessary to conduct stability test or heavy metal test for the product, can the laboratory be able to do it? Wait for the question.

2, Production facilities Whether production equipment, facilities and testing facilities are complete is also part of the strength of the factory. For example, does the factory have sanitary standards? Has it passed the quality management system and GMPC certification? Is it a 100,000-level production workshop? Is there a department for product quality monitoring? Is there a pure water treatment system? These production facilities can guarantee product quality and product shipment issues, which will affect the customer’s product sales strategy.

3, Factory scale China used to have many small-scale cosmetics factories, and their cosmetics were sold all over the country. Since the Food and Drug Administration implemented the two-license integration, many small factories have been closed, leaving legal compliance. Cosmetics processing factory. The size of the factory reflects the strength of the factory, how many employees it has, whether it has a professional design team, whether it has advanced equipment, etc. These details cannot be ignored.

Canvard Packaging International Co.,Ltd was founded in 2011. It is an enterprise with a factory in Guangzhou. It is a company specializing in the production of plastic bottle, plastic jar, plastic container, airless dispenser bottle, foam pump bottle, deodorant stick tube, PET bottle, Professional company of detergent bottle, ampoule bottle and other cosmetic packaging materials. Recently, I have contacted many customers who want to know this knowledge, and I hope it will be useful to everyone.

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