China Printing Company Blog - Printing Knowledge for printing products

  Shopping Paper Bag Printing Size, Regular Size, Printing Size 1) 155W x 210H x 55D (mm)    This is the smaller size we made usually, if you need to make it smaller than this size, please double check it with us. As, it's used for packing small items, not so heavy products usually. 2) 150W x 290H x 55D (mm)   This is the small size bag, it's used for packing standard size products, like A5 size books. If your product size is not too big, you can consider choosing size for your paper bags. 3) 195W x 280H x 60D (mm)   This is the normal size paper bag. It can be used to pack some standard size products like B5 size books. 4) 220W x 320H x 65D (mm)   This is the common size paper bag. It can fit the standard A4 size products. It's a better choice for packing most products. 5) 270W x 300H x 80D (mm)   This is the rarely used size, as it's for some products in special size, like the catalog with size 250 x 250 mm. 6) 300W x 240H x 70D (mm)   This is t...

Color information you should know about while preparing the artwork for printing?  Will the designer remember all the CMYK or RGB colors while preparing the artwork for printing? The answer is NO. There're so many colors, it's difficult to remember all of them. However, the designers always have the good sense of the colors. So, what should we do when we have to use the CMYK or RGB color for designing? RGB: It's the short form of (Red), (Green) and (Blue).  All the colors you see on the computer is mixing these 3 original colors. Actually,  RGB is a self-luminous color. You do not need the extra light to see them. For example, in our daily life, there's TV set, monitor, cell phone, PC, etc, all of them is with these three orginal RGB colors only. How come? It's impossible, as you see different colors on them. Yes, correctly, as there're 256 levels of color, from level 0 to 255 (0-255).They're showing 256 kinds of RGB colors, and mixing them together to show ...

Printing knowledge: Paper Characteristics  Basic Size and Basis Weight The basis weight refers to the weight in pounds of 500 sheets of paper when it has been cut to that paper's standard basic size. For example the basic size for Bond paper is 17 x 22 inches. If 500 sheets (a ream) of Bond is cut to its basic size of 17 x 22 inches and weighs 20 pounds, it is classified as 20 lb. bond. If a 17 x 22" ream of Bond paper weighed 24 pounds it would be called 24 lb. Bond, and so on. The chart below contains some common paper types and their basic size. Paper Type Basic Size Bond Ledger Offset Book Cover Index  Bristol Vellum  Bristol Printing  Bristol Tag 17" x 22" 17" x 22" 25" x 38" 25" x 38" 20" x 26" 25-1/2" x 30-1/2" 22-1/2" x 28-1/2" 22-1/2" x 28-1/2" 24" x 36" ISO Size Standards The International Organization for Standardization (ISO) has established standards for paper sizes based on ...

  Printing Knowledge for Prepress Printing: Color Separations In order to reproduce or prepare a full color image for printing using four process colors, the image must be divided into the the individual subtractive primary color components. The separation process can be accomplished photographically or electronically. Photographic Separations: Using a large process camera, a full color image is converted into halftone negatives which contain a series of dots of various sizes to represent shades of gray. The dots are achieved with the use of special screens placed over the negative material during exposure. When printed, the smaller dots create the lighter areas of the image, with the lightest appearing white, and the larger dots make up the darker areas of the image, with the darkest appearing black. This system of using the halftone screens directly with the film is known as the Direct Screen Photographic Color Separation method. A halftone negative is made for each of the separa...

China Book Printing: Types of Finishing - Binding 1/2  Binding  is generally considered to be the process of fastening the sheets of a publication in the proper order and most often within a protective cover. There are various methods of binding available that can be selected for the type of publication and/or for the type of handling it will receive. Perfect Binding Perfect binding is one of the most commonly used binding methods. It is used for many types of publications. Pages for a perfect bound publication are gathered, stacked, and placed in special equipment where the binding edge is covered with glue. A cover is then attached to the book to complete the process. This method is most successful when the paper grain runs parallel with the spine of the book. Magazines and books may have the title and other information printed on the flat spine of the cover. Perfect binding is one of the most automated of the binding methods. It can be divided into three main categories: ho...