News
  • What Is the Process of Flexo Digital Direct Plate Making? 21-02-22

    At present, flexo plate making methods are mainly divided into traditional plate making and digital direct plate making. Traditional plate in addition to the physical expansion of the network, there is also a plate soft film and plate close together when exposed to the optical expansion. Because of the diffuse reflection effect of UV light, all the graphics and dots will be expanded, so that the resolution of printing reproduction is reduced. Therefore, it is difficult to obtain the desired flexographic quality for printing using digital flexographic printing plate obtained from conventional plate making. What is the process of flexo digital direct plate making? Flexo digital direct plate making process is: digital imaging → back pre-exposure → main exposure → flushing erosion → drying → post-processing → post-exposure. ①Digital imaging Imaging of the plate is a special light polymer plate, the surface of which is compounded with a layer of metameric material with complete light blocking function. First, the plate to be used is installed on the cylinder of the digital plate making machine. During exposure, a computer-controlled infrared laser head moves in the direction of the cylinder to ablate the metameric material in the area to be imaged, exposing the photopolymeric photopolymeric layer of the plate below. Because the photopolymeric light-sensitive layer is not sensitive to infrared light, so the laser ablated where the light-sensitive material is not affected, while the parts not exposed to the laser still remain metameric material, thus forming an imaging stencil. ②Back pre-exposure The purpose of the back pre-exposure is to increase the thickness of the plate base to ensure that the printing required for the printing force. The thickness of the plate base and the back of the pre-exposure time is proportional to the longer the pre-exposure time, the thicker the plate base; vice versa, it is thin. ③Main exposure The main exposure can be carried out in the ordinary exposure machine. Because the metameric material and photographic resin fully compounded into one, acting as the role of the negative, so the exposure does not require vacuum, and the exposure time is short, average, the network does not deform. The main exposure, the exposed photosensitive resin layer to see the light hardening reaction, thus forming the image of the latent image, the photosensitive resin layer covered with basaltic material does not see the light, and does not occur photochemical reaction. ④Wash erosion The metaphorical material that is not ablated away by the laser and the unhardened photosensitive polymer under it are dissolved, forming a concave vacant sector; the photosensitive polymer at the hardened area that sees light is not dissolved, thus forming a floating convex graphic sector. ⑤Drying The flexible plate is slightly swollen and sticky and soft after erosion by washing due to the corrosion of solvent, the original straight line seems to be wavy, and t...

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  • Flexographic Versus Offset and Letterpress Printing 21-01-30

    Digital printing is currently gaining attention in the label industry. With the help of computer platforms, digital printing has unique features that are unmatched by other printing processes. In addition, digital printing's FM dots are a double-edged sword of cost and quality. Digital printing uses FM dots, but traditional printing basically uses AM dots. There is a situation where when we are marketing, because it is a short-run job, we tend to use digital printing, which is fast, low cost and has a very good sense of FM dots.The next digital flexographic printing plate supplier will explain the contrast between flexographic printing and offset printing and letterpress printing. Flexographic printing and offset printing, letterpress contrast 1. Flexographic printing process ① LOGO and logo colour stability of non-flexo printing. ② The number of digital flexographic printing plate plus network lines, the level of expression is lower than offset printing. ③ Dot expansion is smaller than letterpress printing, and the product texture is better than letterpress printing. ④ The integrity of the flexographic dot in the middle tone area is unmatched by offset printing, and the flat screen is flat and does not blossom. ⑤ The texture of metallic colours is very strong and incomparable to offset printing. 2. Offset printing process ① The number of lines of printing plate screening reaches 200 lines/inch, with the most delicate expression of layers. ② Sheet-fed multi-colour offset printing and web-fed rotary transfer flexo and letterpress printing compete on the same stage, and offset printing has the highest overprinting accuracy. ③ Colour difference control of spot colours and colour difference control of overprinted colours is more difficult. ④ The difficulty of ink and water balance control and poor dot integrity. ⑤ The dot leap and overlap near the critical point causes the unevenness of the flat screen. ⑥ To international brands of four-colour, five-colour sheet-fed offset printing equipment with rotary equipment, although the product printing quality is high, but in the product capacity, the level of raw material utilization, the cost of off-line processing after the comprehensive cost of comparison is clearly exposed shortcomings. 3. Letterpress process ① Loss of image level due to dot gain. ② Loss of colour density due to the letterpress ink path. ③ Although not bound by anilox conditions, the dot gain makes it impossible to challenge the high number of screening lines of offset printing. ④ Inadequate control of colour differences. ⑤ The stability of CMYK four-colour overprinting is not high. The key to winning in flexographic The flexographic process faces multiple challenges from other printing processes: the challenge of offset printing, which is good at highlighting small dots, the challenge of letterpress printing, which is good at low costs, and the challenge of gravure printing, which is good at long-running live pieces. Despite these chall...

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  • What Are the Main Advantages of Flexographic Printing? 21-01-17

    Flexographic printing  1. Simple equipment structure, easy to form a production line. In offset printing, gravure, flexographic printing equipment in the three major flexographic printing machine is the simplest structure. Therefore, the price of flexographic printing machine is relatively low, the printing enterprise equipment investment less. At the same time, because the equipment is simple, easy to use and operate, easy to maintain. At present, the vast majority of flexographic printing machine, with such as soup gold, varnishing, cutting, slitting, die-cutting, creasing, punching, window and other processing line, forming a production line. Greatly improve labor productivity.  2.A wide range of applications and substrates. Flexo printing can print almost all printed materials and use all substrates. Especially in the packaging printing of corrugated paper printing has a unique this.  Offset Printing Offset printing is mainly used for the printing of paper-based materials. Printing on plastic film has many limitations. Sheetfed offset printing machine printing width can be changed, more flexible. At present, the vast majority of web offset printing machine printing width is fixed. Its application is limited. The development of technology, web offset presses are constantly improving. Now has been successfully developed to change the printing width of the web offset printing machine. At the same time, the successful development of seamless roller web offset press.  The printing cylinder of this web offset printing machine is seamless, in this regard has been the same as the web gravure printing machine. Offset presses also continue to improve on the printing function. With the improvement and addition of some parts, it is possible to print corrugated board. With the improvement and addition of UV drying device, it is possible to print UV printed parts. The above improvements continue to expand the use of offset presses in the field of packaging printing. Offset printing with water-based ink will soon enter the practical application. Here offset printing is another step. Gravure printing Gravure printing, ink full of three-dimensional sense, in a variety of printing methods, the printing quality is the best. And printing quality is stable. Long life of the printing plate. Suitable for large quantities of printing. Gravure printing can print very thin materials, such as plastic film. However, gravure plate making is complicated and expensive, and its benzene-containing ink pollutes the environment. These two problems have affected the development of gravure printing. In particular, the reduction of a large number of large number of prints, short version while requiring a large increase in low-priced prints, so that gravure printing continues to lose market. Characteristics of UV Drying 6 Color High Speed Flexo Plate Making Machine 1. It is made of stainless steel shell, featuring in durability and won’t get rusty. 2. Adopt imp...

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products
aolide 2.84mm thickness analog flexo photopolymer printing plate
  • Item NO.:

    ALD-R284-II
  • Payment:

    30% T/T deposit,70% T/T before shipping
  • Market Price:

    57
  • Price:

    58/60/sqaure meter
  • Product Origin:

    Jiangsu
  • Color:

    Light Red
  • Shipping Port:

    Shanghai
  • Lead Time: 

    20 workdays
contact now
Product Description

1- Item

aolide 2.84mm thickness analog flexo photopolymer printing plate

 

2- Description

1)Excellent dot and isolated line reproduction

2)Solid printing performance

3)High latitude of exposure and processing

4)Good ink transfer

5)High impression

 

3-Technical Parameters

Type:R284-II

Thickness(mm):2.84

Rigidity(Shore A):46

Recommend relief depth(mm):1.0-1.4

Image reproduction:2%-95%

Maximum line line/inch:120

Minimum isolated line:0.175mm (0.007inch)

Minimum isolated dot:0.25mm (0.01inch)

Suitable ink:Suitable for water and alcohol-based ink, incompatible with oil-based ink, hydrocarbon solvent or the ink containing ethyl acetate of more than 25%

Mainly applicable field:Label、 Flexible package、Carry bag、

Folded paper box、Napkin、Beverage package



4- Process parameters

Type:R284-II

Thickness(mm):2.84

Back exposure(seconds):25-40

Main exposure(minutes):8-20

Rinsing(minutes):5-7

Minimum drying time(hours):1.5-2

Detackfying(minutes):5-7

Post exposure(minutes):3-5


1) Platemaking conditions: light of 80 watts (9.7mW/cm2 under 365nm), platesetter temperature 24-30 °C. 

2) All the above data is depended on our plate-making device. Due to the different requirements of plate-making device, UV lamp power, relief depth and print image, the above recommended time can be changed appropriately. Customers should test on their own device for optimum plate quality.  

 

5-Usage Scope

 

6-Dimension & Packing

Type:R284-II

762mm×1016mm   (30"×40")

900mm×1200mm   (35.4"×47.2")

1067mm×1524mm  (42"×60")

1067mm×2032mm  (42"×80")

1200mm×2032mm  (47.2"×80")

1270mm×2032mm   (50"×80")

 

7.Packing

 

8.Processing

 

Please feel free to contact me online or send me a message if you are interested in our products, thank you!

inquiry now
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