Sumitomo Riko Company Limited.


Proposed by Sumitomo Riko, a professional in polymer material formulation technology High-resolution, eco-friendly water-washable flexo plates for people


Product specifications

Flexo printing contributes to reducing global environmental impact and improving comfort in the work environment.
Introducing the reasons why people choose flexographic printing.


A printing method that can be done without solvents

Friendly to the work environment and global environment


Water-based ink free from residual solvents can meet the needs of food, medical, and sanitation industries.

Degree of freedom

Printing can be done on various substrates (paper, cardboard, film, Japanese paper, resin, non-woven fabric, etc.).

Excellent cost performance with small lots.

What is flexo printing?

Inquiries / Request for Information

The merits of water-washable flexo plates

Our AquaGreen water-washable flexographic plate not only contributes to reducing environmental impact, but also achieves short-time plate making. In addition, high quality is maintained even in long run printing with a large number of prints.

Short-time plate making

Minimum time washout contributes to efficient and comfortable plate-making for everyone.

Productivity more than 3 times in comparison with solvent plate.

Plate making process details

High quality Long run printing

You will have minimal dot gain and consistency in long printing run.

AquaGreen are hard to gain paper powder, and have excellent ink-transfer.

AquaGreen have excellent ink resistant, wear resistance,weatherability.

Environmental load reduction

Development can be done with tap water (hot water of 40 to 50°C with surfactant added).

No need for solvent reclamation system. VOC emission will be eliminated.

Remarkable improvement of the productivity.

Shortening of the wait ime for press.

Quick reprocessing at the time of a trouble.

Cost effective processing.

Solvent & waste fluid processing free.

High speed plate processing reduces the cost for lighting and fuel.

Inquiries / Request for Information

Product specifications

Plate Structure Detail

Plate Structure Detail

*1:The hardness is our measurements. *2:Please contact our sales representatives for details on product sizes and the number of plates per case for each thickness.Numerical values are not guaranteed. Please note that specifications are subject to change without notice.

Inquiries / Request for Information

Sumitomo Riko technology

AquaGreen was developed by combining manufacturing technologies cultivated by Sumitomo Riko such as polymer material formulation technology, high-precision molded sheeting technology, structural design technology, characteristic and plate making evaluation technology, etc.

AquaGreen’s features (Digital plate)

Feature(1) Halftone reproducibility

The influence of oxygen hardening inhibition, which is a demerit of digital plates, is lessened, and it is possible to reproduce halftones as designed.

With AquaGreen, halftones are highly reproducible as designed (Ø16μ = 175Lpi / 1% Ø16μ is easily reproduced).

Image control in platemaking work is easy, and image data processing and platemaking work is simple.

Structure Details

Feature(2) Halftone tone

With AquaGreen, the gradation of the halftone micro dot diameter is high, making clean, sharp print reproduction possible.

Inquiries / Request for Information

AquaGreen Environmental Declaration

AquaGreen plate is product that is procured ・ manufactured ・ managed in compliance with Sumitomo Riko Chemical Substance Procurement Standards.

Management of Chemical Substances in Procured Items

Sumitomo Riko Group manufactures a wide range of industrial rubber and resin products, including automotive components, office equipment components and industrial materials. We use raw materials and other items containing various chemical substances to manufacture such products. We manage these materials appropriately to minimize their hazardous properties and thereby prevent contamination of the local area, ensure workplace and product safety and comply with products requirements from customers.

Establishment of Controlled Chemical Substances and its Operation

Sumitomo Riko specifies chemical substances to be managed in light of laws and regulations of various countries and customers' requirements. It determines which chemical substances are subject to management based on the EU's ELV Directive*1, the RoHS Directive*2, REACH*3, laws and regulations in Japan, GADSL*4, and IEC62474*5. To ensure that all our products are free of chemical substances subject to control, we strictly adhere to all the rules concerning each department's role and the application procedures, monitor the substances contained in our products, and are making efforts concerning information disclosure.

  • *1 ELV Directive: Directive of the European Parliament and of the Council on End-of Life Vehicles
  • *2 RoHS Directive: EU restrictions on the use of certain hazardous substances in electrical and electronic equipment
  • *3 REACH: Registration, Evaluation, Authorization and Restriction of Chemicals, an EU regulation on chemicals and their safe use
  • *4 GADSL: Global Automotive Declarable Substance List
  • *5 IEC62474: Material Declaration for Products of and for the Electro-technical Industry

Compliance with Overseas Regulations of Chemical Substances

Sumitomo Riko exports materials, parts and finished products from Japan to the Group's production sites overseas. With the cooperation of suppliers and importers, we endeavor to ensure full compliance with applicable regulations such as the EU REACH Regulations (2008), China's Measures for the Administration of Registration of Hazardous Chemicals (2012), and the US TSCA*6 (revised in 2016). We are also preparing compliance measures for Asian countries that will introduce similar regulations in the future.

  • *6 TSCA: Toxic Substances Control Act

We have confirmed that the environmental safety of the waste (plate, developer waste, developer) discharged under the specified conditions of AquaGreen plate is legal.
(Please dispose of the waste properly in accordance with local regulations.)


Inquiries / Request for Information

Contact for inquiries regarding technology and quality

Sumitomo Riko Company Limited. Flexo Sales Office

TEL:+81-568-77-2027 FAX:+81-568-77-4278

Sumitomo Riko Group SumiRiko Italy S.p.A. FLEXO DIVISION

Via Pavia 120/a, 10098 Rivoli(TO)-Italia Phone:+39-0119565513