Label Expo India 2016

LabelExpo India is the largest event for the label and package printing industry in South Asia with more products, more launches and more live demonstration!
For those who are going to setup a new industry or expand their current, this is the golden opportunity for them to choose and select from a widest range of machinery and materials for label & package printing.

Exhibitors
The well known machine manufacturing and material supplying companies from India as well as abroad (i.e. China, Germany, France,  Italy, Taiwan, UK, & many more) will be present to fulfill your needs by providing better availability of their world class machinery and materials. Those who want to stand in competition and who wants to give best quality services should have to make a visit in LabelExpo India.

Who should Visit

• Printers/Converters of labels, flexible packaging and folding cartons
• Brand Owners
• Label and Packaging Designers
• Industry Suppliers
• Students of Printing, Graphics and Packaging 

What you will see 

• Digital and conventional printing presses 
• High tech label and packaging materials
• Pre-Press and platemaking technology
• Finishing and converting technology
• Inspection, Overprinting and label application equipment
• Dies, cutters, rollers
• Inks and coatings
• RFID and security solutions

When 

From 17^th of November to 20^th of November, 2016

Where

India Expo Center & Mart (Greater Noida)

Plot No. 25,27,28,29, Knowledge Park-II, Greater Noida-201306

Uttar Pradesh, India

For Further Information
Please visit www.labelexpo-india.com
                    www.indiaexpomart.com

How calculate creasing matrix

To calculate the creasing matrix for papers and boards having different thickness , we have to follow this formula.

B=(C×1.5)+D  

Where,

                B= Width of crease

                C= Thickness of paper

                D= Thickness of Creasing Rule

Note :- 1. All values should be in mm.

            2. The values of thickness of creasing rule is given in point. Hence, we have to convert it into                   mm

                    i.e. 1 pt = 0.36mm

Creasing Matrix

Creasing matrix is a device used in manual or automatic die cutting machines for making perfect creases on paper or board.

Different parts of Creasing Matrix
There are following parts of creasing matrix are as follows:

1. Locator
2. Matrix
3. Chamfered Edge
4. Self Adhesive
5. Thin Film Base
6. Finger Lift Release Paper

1. Locator:- It is made-up of flexible plastic. It holds the matrix on the creasing rule. The locator is mounted over the creasing rule to hold the matrix. 
2. Matrix:- It is made-up of hard material. The creasing rule is comes to the groove of the matrix to crease the paper or board.
3. Chamfered Edge:- The edges of matrix are made slightly tapered to protect the matrix from unnecessarily come-out from the plate.
4. Self Adhesive:- It facilitates the matrix to stick on the plate.
5. Thin Film Base:- It holds the matrix together.
6. Finger Lift Release Paper:- It protects the adhesive of matrix to get damage. Before Sticking it on the plate, this paper is removed.

Romancing Print

First time ever in India
International Conference – 21st Century Printing
A MUST attend for each and every ‘People-in-Print’
please click here for details of pass the following link
http://www.nipa.in/pressrelease/Romancing_Print_AIFMP.pdf
at your browser

Steps for Doing French/Thread sewing

Aim:-  French/thread sewing on the sections for account book binding.

Materials Required:- Thread, Needle, Sections, Scissor.

Procedure:-  In French sewing, the positions of kettle stitches are marked from 1 to 6 at the spine of the gathered sections. The last section of the book is taken first and kept on the bed of the sewing frame. The threaded needle is pierced into the section through the point 1, taken out from the point 2 and after that the needle is inserted into the section through point 3. Now it comes out of the section through the point 4 and again inserted into the section through point 5. The needle finally cones out of the section form point 6 completing the sewing of the first section.

                The next section (second last section of the account book) is kept on the sewn section precisely aligning at the head and back edge of the first section. The needle is inserted into the section through point 6 and the sewing is done from head to tail i.e. from point 6 to 1. The kettle stitches of the sewing is done from head to tail as in French sewing.

                When the needle comes out from point 1 then a knot is made with the remaining thread of first section’s point 1 to join the edges of the section. In third section, the needle is passed between the last two sewn sections at point 6 and in the fourth section, a knot is made via thread inserted between previous two sections.

                By repeating these steps, we can sew all the rest 10 sections of the account book and at the last a knot is made at the tail at point 1.

Film Assembly

          

Film Assembly

            It is the process of assembling all pieces of film containing the image that will be carried on the same printing plate and securing them on a astolon sheet that will hold them in appropriate/proper position during the platemaking process. The assembled positive films are called a flat. After the flat is prepared it is generally tested on inexpensive photosensitive material to check the image position and to ensure that undesired light reaches the plate. This process is called proofing, if the proof is approved the flat can be placed in contact with a printing plate and light can be passed through the plate to make the plate for printing.

            The pasting/stripping artist uses a variety of tools like T Square, Triangle, Cutting tools, Blades, Knifes to trim films. For greater accuracy an ordinary needle is used to make the masking sheet when laying out a window. Water colour brushes with no. 0,2,4,6 are used. A pair of scissors, a low powered magnifying glass(10x), pencils to 2hetch and 4hetch, pencil eraser, felt tip marking pens for labeling flats are used.

            For negatives the masking sheet that does not passed light to printing plate must be used. The most commonly used are golden rod paper, which blocks actinic light (any light that exposes blue light and ultra violet light sensitive emulsion) because of its colour. The job that requires greater accuracy uses orange or red colour vinyl masking sheet. To positive striping masking sheet and film must pass light in all areas except the image area. Most positive striping is done on clear acetate support sheet or astolon sheet. Opaque is a liquid material used to cover pin holes and other unwanted details on film negative. Red opaque is easier to apply. Old tools mentioned above should be centrally placed near light tables for easy usage.

Imposition: - It refers to the placement of images in the correct position on the printing plate so they will be printed on the desired location on the final printed sheet. Several types of imposition are commonly used. They depends on the following factors:-

1.      The design, folding, trimming and binding.

2.      The type and the size of the machine in press.

3.      The type of paper grain direction.

Masking Sheet: - The position of the image on the printing plate is determined by the film’s position on the masking sheet. Care must be taken in placing the film images on the masking sheet. The masking sheet is generally dark in colour which doesn’t allow light to pass through.

The cylinder line: - It identifies the area of the masking sheet that covers the part of litho palte clamped to the plate cylinder.

The gripper margin: - it is the area of the mechanical gripper hold by the mechanical fingers that holds the sheet during printing.

The plate center line: - This is the center of the plate cylinder for the guidance for plate fixing.

Vacuum Printing Down Frame

 The vacuum printing frame holds the negative and plate in intimate contact during exposure. The frame consists of two wooden or metal frames one of which holds a corrugated or channeled rubber blanket with a rubber-bed gasket around its edges. The other frame contains a sheet of flawless plate glass. In smaller vacuum frame the two frames are usually hinged together on one side. The rubber blanket is connected to a vacuum pump by a flexible rubber tube.

Operating the vacuum frame:- When the printing frame sis open, the blanket is horizontal and the glass is raised up out of the way. The sensitized plate is laid on the blanket with the coated side up. The positive or negative or a stripped up flat is laid on the plate in exact position, emulsion side down. The glass frame is lowered and two frames are locked together. The vacuum pump is then turned on. The pump sucks the air from between the blanket and glass, thus forcing the sensitized plate and the negative or positive together. When this has been done, the printing frame is rotes so that the glass faces a controlled light source which when turned on, gives the necessary exposure. On a flip top frame the glass is inverted in angle of 180° since the exposing light is underneath.