Using carbon copy paper
To maintain all performance indicators, it is necessary to ensure optimal conditions of use.
Self-copying forms are filled out both manually and on mechanical units that create a mechanical load. These are typewriters and dot matrix printers. True, there are not so many of them left today. For manual filling, the maximum number of sheets should not exceed five.
The main use of self-copying forms was found in everyday work. This is filling out acts, invoices, receipts, various contracts and passes, and other actions that require manual filling.
In addition to its usual use, carbon paper is used to transfer complex colors. For example, a full-color image of a complex design in the form of a grid on another surface. Printing can be done on the obverse of the sheet and on the reverse side.
Carbon paper is increasingly being used by designers for decorative work. It is used to transfer the drawing to the wall. In some cases, sheets are perforated and then woven into brochures or books. In this case, cardboard is placed to fill out the form.
Carbon paper – principle of operation
A typical three-page form has three main layers that interact with each other. Together the leaves form a system that produces an image (or rather a pressure pattern) onto the front surface of the second and third leaves.
The top plate is coated with millions of microcapsules of colorless ink called CB (coated paper). The average CFB sheet has two coatings on the top and a reagent on the bottom – a microcapsule. When writing on the top sheet with a pen or any other object, pressure is transferred to the reverse side, which causes the dye capsule to open and react with the coating reagent – this is how the gray image appears on the third sheet.
To implement the copying process, a layer of microscopic capsules is applied to one or two sides of the paper. Three different types of paper are used. The bottom layer should be denser than the top, because it serves as both a substrate and a press.
When a pencil or ballpoint pen is applied to the outside of the form, the microscopic capsules on the bottom layer are destroyed, and the component located inside falls on the next layer of paper, creating a copy of the written text. If necessary, by adding sheets in the middle, you can make multi-page forms. Issuing a receipt for reporting, for the client and for the employee was common practice.
Carbon paper forms work well for laser printers, but microcapsules can be damaged if temperatures are too high.
It is difficult to guarantee the quality of each copy on laser printers, although the high-quality use of sheets when printing from laser printers has been proven more than once. As a general guideline for color laser printers, it is important to use high-quality paper with a hardness of at least 75 g/m2 and to thoroughly clean the printer’s printheads. A test run should also be carried out for each print batch.
Roll-to-roll laser printing is not recommended for copy forms because it is done at high speeds at high temperatures and places a lot of stress on the paper. As a result, the microcapsules may be damaged. Although this damage may be minor and may not affect the properties of the transfer paper, it does release oil that can cause damage to the printer during printing.
See the artistic uses of carbon paper in the video below.
Features of self-copying forms
Accounting self-copying forms are characterized by a special format: you can purchase invoices, sales receipts, receipt orders, which can be issued in several copies at once.
Carbon paper printing
Depending on the type of printing on self-copying paper (CFD 53 g/m2) you can do:
- 4-6 copies (handwritten);
- 8-12 copies (typewriting method);
- 3-7 copies (matrix printing).
For printing, try to avoid too much “twisting” and sliding during winding, maintaining an even and constant pressure. Avoid excessive pressure or friction, which could damage the microcapsule on the underside of the sheet.
In the case of a cotton top layer, this may affect the copying properties of the COC middle layer and cause color removal on the top layer. The winding operation is carried out in exactly the same way as with ordinary paper covering.
Different sheets of copy sandwich have different densities and are cut differently at the factory:
- top sheet (CB). Since pressure on the cutter can damage the microcapsules, reduce the pressure on the sheet to a minimum (about 2-2.5 kg/m2).
- middle leaf (CFB). In addition to the above, it is also recommended to use sharpened blades with an appropriate angle (about 19°).
- The last sheet (CF) is cut in the same way as regular paper, although still cut with a sharp blade to avoid getting stuck in the block.
Carbon paper should be stored in its original packaging until use, maintaining the most stable temperatures at relative air humidity (18-24 ° C, 50-60%). Avoid overheating the paper, intense air currents, direct sunlight, moisture and friction against the surface of the walls.
If the conditions at the site of use are different, it is necessary to store it in a warehouse and leave the paper in its original packaging. Additionally, carbon paper should always be stored on a flat surface with the smooth side facing up.
Self-copying paper – buy in bulk from Europapier
Self-copying materials are a convenient solution for creating forms, forms, personalized forms, documents, invoices or business reports. It is paper coated with special chemicals that, when pressed, for example with a ballpoint pen, become visible. The document created in this way consists of several pages (original and copies). Individual layers are available in each of five colors – white, yellow, pink, blue and green. The available ink colors on the copy are black and blue.
Carbonless paper is used:
- in logistics;
- in the pharmaceutical industry;
- to confirm receipt of parcel delivery;
- for printing medical and laboratory reports;
- for warehouse and payment documents and invoices.
The paper allows offset, flexo and laser printing, and is characterized by relatively high resistance to bending and tearing. The special “microcapsule” technology used in self-copying paper ensures excellent image visibility and fine details.
Assorted self-copying forms
This section of the catalog contains self-copying forms. They consist of several layers of special paper and allow you to obtain a specified number of copies of what you have written. A convenient invention, especially for offices with a large volume of document flow.
Inkjet printing on copy forms can be done, however, it is advisable to adhere to the following recommendations: