The article is about stickers

What is a seal

A seal, in a broad sense, can be understood as a label, sticker or seal used to seal, seal, protect or identify a certain item or document. Its specific form and use vary from domain to domain and scenario to scenario, but the basic function is to ensure the security, integrity or traceability of items or documents.

In the postal field, a seal is a letter or mail that is used for promotional, commemorative or special purposes. These stamps may record specific historical events, postal activities or technological advances, and become the objects of stamp-collecting enthusiasts.
In the field of packaging, sealing refers to the label or sticker used to close the packaging of a product to prevent leakage, contamination or damage to the product. These seals are selected according to the different needs of the product and the type of packaging, and may have characteristics such as moisture, oil, high temperature and corrosion resistance.
In addition, sealing is also widely used in other fields. For example, in handmade, the seal can be used as an element to decorate or protect the handmade work; In commercial activities, the seal may be used to promote the brand or product, enhance the brand image and attractiveness.

The origin of the seal

The historical background of postal stickers
Origin and development: As a part of postal culture, the origin of envelopes can be traced back to the early days of postal communication. With the development of postal services, people began to use various ways to mark and seal letters to ensure the security and integrity of letters. As a special kind of seal ticket, sealing has been widely used in the postal field gradually.
Special purpose: The seal is not only used to close the letter, but also carries special purposes such as publicity and commemoration. For example, during certain historical events or postal activities, the postal service will issue limited edition commemorative envelopes to commemorate these important moments. These seals usually have unique designs and patterns, and become the object of stamp-collecting enthusiasts.

Specific examples of sealing
Historical commemorative cover: Take the commemorative cover printed in Australia in 1919 to commemorate the first air mail flight from Britain to Australia as an example, this cover not only records the occurrence of historical events, but also shows the progress of postal technology and the prosperity of postal culture at that time. The number of such seals is limited, so it is highly collectible.
Modern postal sealing: In the field of modern postal, there are more types of sealing, including ordinary sealing, commemorative sealing, special sealing, etc. These stickers are not only practical, but also reflect the diversity and innovation of the postal culture.
The cultural significance of the seal
Inheritance and record: As an important part of postal culture, sealing carries the historical inheritance and cultural record. By collecting and appreciating the stickers, people can understand the social features, postal technology and cultural characteristics of different historical periods.
Art and aesthetic: The design of the sticker often integrates artistic elements and aesthetic concepts, showing the creativity and talent of the designer. These exquisite stickers not only add color and interest to postal communications, but also become artworks for people to appreciate and appreciate.

The necessity of sealing in life

1.Ensure security and integrity
One of the main functions of the seal is to ensure the security and integrity of the item or document. By closing and sealing the package, the seal protects the item from contamination, damage or theft during transportation or storage. In the packaging of sensitive products such as food, pharmaceuticals and cosmetics, the use of stickers is particularly important because they are directly related to the health and safety of consumers.
2. Provide anti-counterfeiting and traceability
Many of the seals have anti-counterfeiting features, through special materials, printing technology or coded information, can effectively prevent forgery and tampering. This is of great significance for protecting brand rights and combating counterfeit and shoddy products. At the same time, the coded information on the seal can also be used to trace the production batch, production date and other key information of the product, which helps the enterprise to carry out product management and quality control.
3. Enhance brand image
In commercial activities, the seal is not only a part of the product packaging, but also an important display window of the brand image. Enterprises can attract consumers' attention by designing unique and exquisite stickers to enhance brand awareness and reputation. At the same time, the elements such as brand identity and slogan affixed to the seal also help to deepen consumers' impression and cognition of the brand.

4. Promote convenience and efficiency
The use of stickers can also promote convenience and efficiency in life and work. For example, in the field of express delivery and logistics, sealing can quickly and accurately seal packages, reducing packaging time and costs. In document management, sealing can be used to mark and classify documents to improve the efficiency and accuracy of document management.
5. Meet individual needs
With the increasing diversification of consumer demand, the seal has also begun to develop in the direction of individuation and customization. Consumers can choose different materials, shapes, patterns and texts to decorate or protect their items according to their preferences and needs. This personalized seal not only meets the aesthetic needs of consumers, but also reflects the uniqueness and difference of the product.

Type of seal

Postal sealing
Commemorative envelopes: Used to commemorate specific postal events or historical events, such as the one printed in Australia in 1919 to commemorate the first air mail flight from the United Kingdom to Australia. This kind of seal is one of the precious philatelic products with publicity and commemorative properties.

Sealing Stickers in the field of packaging
Sort by shape:
Round seal: A round label used to seal product packaging, usually attached to the seal of the package to ensure the tightness of the product.
Square seal:
The shape is square or rectangular, suitable for various types of packaging, such as box products, bag products, etc.
Strip seal: A long Seal Label, usually used to close long packaging, such as candy bars, energy bars, etc.
Classification by material and characteristics:
Paper sealing tape: mainly used for packaging food and medicine and other daily supplies, with moisture, oil, high temperature resistance characteristics.
Plastic seal:
common polypropylene (PP), polyethylene (PE), PET and other materials, with high temperature resistance, cold resistance, moisture, anti-oxidation characteristics, widely used in food, medical, cosmetics and other packaging fields.
Aluminum foil seal:
made of aluminum foil and tape, with moisture, moisture, corrosion resistance, high temperature resistance and other characteristics, mainly used in food, medicine, cosmetics and other high-quality packaging.
Self-adhesive seal:
Has a glue back that can be adhered directly to the product packaging without additional heat sealing or other processes.
Easy to tear sealing tape: designed to be easily torn when needed, convenient for consumers to open the product packaging.
Heat seal:
Usually used for heat seal packaging, it needs to be sealed at high temperatures to ensure the long-term preservation of the product.
Opaque seal: The use of opaque or translucent materials, can block light, suitable for the need to protect the light sensitive products of the seal.
Transparent Sealing Sticker:
made of transparent material, consumers can clearly see the appearance of the product, suitable for the need to display the appearance of the product.
Anti-counterfeiting seal:
with anti-counterfeiting characteristics, such as special printing, two-dimensional code, bar code, etc., used to ensure product security and prevent counterfeiting.