The following describes the typical two kinds of paint film recipes and production methods:

Example 1: Formulation and Fabrication of Lacquer Film Paper

formula:

Soft clear paint 100g

Banana water 200～300g

Castor oil 1～6g

operating:

a) Paste the tracing paper or office paper on a flat board or glass, mix the banana water and steam 1:1 uniformly, brush on the paper to make a separation layer, wait until the paint is dry, and spray the spray gun away from the paper about 20 The centimeter is appropriate. Spray it seven or eight times. Thickness is controlled by oneself, and general wax paper can be prepared in thick, medium and thin types. After the first layer is dried, the second layer and the third layer are sprayed. If the amount of production is small, brushing can also be used.

b) The soft clear spray paint is a colorless transparent body. In the preparation of the film, the paint must be dyed. That is, a little blue or magenta or green pigment is added in the paint to facilitate the resolution of the engraving. Lightening should be light, the dye first dissolved with alcohol.

c) Castor oil increases or decreases depending on spray paint performance and weather changes.

Last edition:

a) Put the carved version on a flat glass plate, and put a stretched net frame on it. The right hand rubs a little banana water on the screen plate with a sponge, and the left hand presses with a dry cotton wool to let it The paint film sticks to the screen.

b) After the plate is completely dry, remove the backing paper, and use gasoline to scrub the banana water brushed between the reverse side of the plate and the backing paper.

c) If there is a place where the plate is peeled off, it can be filled with banana water, and the knife-edge-connected knife marks and small strokes can be repaired with a brush pen dipped in liquid.

Example 2: Formulation and Production of Gelatin Film Paper

formula:

Gelatin 20g

Clear water 100～300g

Glycerine 3～7g

operating:

a) The gelatin is placed in a clear water filled with a container and dissolved by steaming. Then, glycerol and a little magenta dye are added and the mixture is filtered with 100 meshes on the Internet.

b) Paste the polyester film base on a very flat wooden counter or glass plate, apply the perchloroethylene and cyclohexanone solvent on the paper as a separating layer with a brush, dry it and spray or brush the spectrum. can. (Ibid.)

c) Let it dry naturally, place it in a dry and ventilated place and store it for future use.

Last edition:

a) Draw a rule line on the original, and multi-colored sets use this rule line to determine the rules.

b) Put the carved version together with the original, place it on the appropriate position of the wire frame, according to the rules of the original, paste the rules on the wire mesh with paste, and paste it firmly with the paper. There are several sets of colors to use a few stretched wire mesh and set a unified rules.

c) Put the manuscript together with the carved version, place it on the ordered plate, lay down the screen frame, and use the iron to align the square edge of the carved gelatin plate with the iron, so that the gelatin plate will be hot and sticky on the screen. After leaving the original sample.

d) Put some thick hard paper on the bottom plate, lay down the screen frame to make the gelatin pad flat, and then cover the polyester film on the screen to form a gap between the bases. Iron the iron film back several times to make the gelatin paint film ironed. On the screen.

e) After the plate has been dried, let it dry, then remove the backing paper and wipe off the vinyl traces on the reverse side of the plate with the interlining paper with cyclohexanone.

f) If the plate has fallen off, it can be filled with glacial acetic acid. If the cutting edge and small strokes of the blade are detached, it can be repaired with a writing brush and glue.

b. Water soluble film making method. A polyester film or a paper containing a special resin is used as a backing paper, and a layered film with a water-soluble resin as a printing film is coated on top, which is called a water-soluble film. This resin plate is transparent and easy to cut, and can be easily separated from the backing paper. The resin plate is a plate that can resist all solvents and has high resistance to printing. However, it is not suitable for making fine text and patterns.

Cut off the appropriate size of the film from the film, Zheng Shang, and place it on the plate with a transparent tape. Use a knife or double-edged knife to cut out the film along the lines and the outer edges of the text. The cut film is placed on the platform with the film face up. Use rags to give uniform moisture to the screen. The amount of water should not be excessive, but too little will cause uneven adhesion. Place the screen with moisture on the film, add some water, and use a dry cloth to gently push forward on the screen. Be sure to adhere evenly. In addition to water, a small amount of acetic acid or alcohol may be added to the film. This should be done in accordance with the designation of the film maker.

Figure 2-107 version of the film surface trim

After bonding, paper is placed on the web to remove excess moisture and dried quickly with a fan. Whether this series of operations can be completed quickly is the key. After drying completely, the base is gently peeled away, leaving only the plate and web to be one. This plate has strong resistance to oil inks other than water-based inks, synthetic resin inks, and the like.

c. Paint film processing method. A polyester film or a paper containing a special resin is used as a substrate, and a cellulose-containing resin is coated thereon. The plate material for the plate is called a paint film. This type of resin plate can only be dissolved in solvents and cannot be dissolved in water, so it is widely used in aqueous ink printing.

The shape of the film and the method of cutting are similar to those of the water-soluble film described above except that acetone and pentyl acetate are used in the bonding with the screen. Put the frame on top of a film that has been cut out of lines and text, and stick it with a piece of cloth that has penetrated the adhesive. Remember not to over-solubilize the film in solvents. Attempts to bond too much area at one time can lead to failure. Because the solvent will dry out in a short time, it is necessary to constantly change the cloth. After all adhesives are applied, the fan is turned on, and the polyester substrate is peeled off after the solvent permeated into the film is completely volatilized.