What Is a Letter Case?
A Letter Case is an envelope designed for organizing and storing postal items and letters using features such as clear files.
It is often referred to as a Letter Pack or cardboard envelope. These envelopes commonly use glossy cardboard on the surface and include space for writing the recipient’s address and name. The use of Letter Cases facilitates the secure mailing of important documents.
Moreover, they serve the role of protecting postal items and letters from unauthorized access by others. By storing documents inside and sealing them, it prevents individuals, including delivery personnel, from accessing the documents. This ensures the safe mailing of confidential documents and personal letters.
Using glossy cardboard helps protect postal items from elements like rain or snow. This role in shielding postal documents from damage enhances the reliability of postal services.
Uses of Letter Case
The primary uses of Letter Cases include the following:
1. Sending Business Documents
Specific examples of using Letter Cases for sending business-related documents and papers include invoices, estimates, presentation materials, and more. Envelopes often feature printed company logos, addresses, and sender information.
2. Sending Catalogs and Brochures
They are also utilized for sending business-related materials such as product catalogs and service brochures. Addresses are typically printed on the envelopes, and the materials are sent through postal services, reducing the need for personnel to move back and forth and enhancing the overall presentation.
3. Sending Photos and Artwork
Letter Cases are employed for storing and sending photos taken at events and artwork. As Letter Cases are often made from sturdy cardboard, they protect photos from rain or snow during transportation. The protection of sent photos or artwork contributes to improving the reliability of postal deliveries.
Principles of Letter Case
Letter Cases are manufactured by assembling cut pieces of thick paper in a flat design using glue or other adhesives. Following the design of the envelope, panels on the front and back of the envelope and the flap are cut out. The cut panels are then folded into the shape of the envelope.
The adhesive is applied to the folded flap portion of the envelope, often using rubber or self-adhesive glue. When the adhesive surfaces come into contact, they compress, sealing the envelope.
As needed, the envelope may undergo printing and design processes, including elements like company logos or postal code frames. Subsequently, the quality of printing and the sealing properties of the adhesive are checked before completion.
How to Choose Letter Case
When selecting a Letter Case, the following critical factors should be considered:
1. Size and Shape
The size of the Letter Case should be chosen based on the dimensions of the items to be stored inside. Common sizes include A4 (210mm x 297mm) and A5 (148mm x 210mm). Selecting an appropriate size is crucial, especially when sending larger documents.
While rectangular shapes are common, square or special-shaped envelopes are also available. Choosing a shape that complements the design of the document or material being sent is important.
2. Quality of Thick Paper
Letter Cases are made from various materials. Considering the texture and durability, selecting the right material is crucial. Common materials include craft paper, recycled paper, glossy paper, and more.
The weight of the thick paper affects the robustness and appearance of the envelope. Heavier paper provides sturdiness and a luxurious feel, while lighter paper can help manage costs.
3. Color and Design
Letter Cases are available in various color options. For business documents, white, cream, or light tones are often preferred. Colorful designs may be chosen for items like invitations.