Ink Degasser

TEL:18925129293

Flexographic Printing Ink Defoaming Machine


Resolve foam of water-based flexographic ink · Clear dots, pinhole-free and less foam accumulation

Physical vacuum defoaming without defoamer + Preserve adhesion of water-based system + Flexible color change for small batches

SIENOX flexographic ink defoaming solution targets the characteristic that water-based flexographic ink contains surfactants and foams easily. It removes foam by physical vacuum method without adding defoamers, so as not to impair ink film adhesion and printability, achieving uniform ink transfer of anilox rollers and clear halftone dots.

✓ CE certification  ✓ ISO9001 Quality Management System ✓ RoHS compliance ✓ Custom voltage available (110V/220V)

Online Message Free Sample Testing Engineer Hotline: 189-2512-9293

Why Do We Need a Flexographic Ink Defoaming Machine

Water-based Flexographic Printing

Water-based flexographic ink contains surfactants and foams readily after circulating stirring, resulting in uneven ink transfer of anilox rollers and missing prints or streaks on solid and halftone areas.

Foam Accumulation & Pinholes

Foam accumulates on plate rollers and ink tanks, and forms pinholes and pits after drying, damaging print appearance and lamination strength.

Food Packaging Printing

Water-based ink for food packaging requires high purity. Defoamers cannot be added arbitrarily, otherwise migration may occur and compromise lamination adhesion and hygienic performance.

✨ Traditional dilemma: Relying on defoamers to suppress foam tends to cause migration and impair ink film adhesion and lamination strength. Pure physical vacuum defoaming is required.

Why Choose SIENOX Flexographic Ink Defoaming Solution

No Defoamers Added

Pure physical vacuum defoaming without introducing defoamers to protect the adhesion, lamination strength and hygienic properties of water-based systems.

Uniform Ink Transfer

Eliminates foam on anilox rollers and ink tanks to achieve stable ink transfer and clear halftone dots, reducing missing prints and streaks.

Flexible Color Change

Frequent color switching for small-batch multi-color orders. The C/ZK series supports fast ink formulation and defoaming for high production conversion efficiency.

✨ The MIX series is an ideal defoaming equipment for offset printing ink from color matching to bulk ink supply.

Equipment Supporting Description

Supporting Process Workflow

Weigh resin and powder → Vacuum stirring, mixing and degassing → Discharging for pressing / casting → Curing / sintering.

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Specifications & Parameters

Selection Guide

Flexographic Ink ApplicationTypical StateRecommended Defoaming MethodRecommended Equipment
Small-batch Color Switching / SamplingSmall amount of water-based inkCentrifugal / vacuum defoamingC Series / ZK Series
Water-based Ink for Paper Cups & BowlsLow-medium viscosityVacuum defoamingZK Series / MIX60
Water-based Ink for Corrugated CartonsMedium viscosityVacuum stirring and defoamingMIX Series
Label / Film Flexographic PrintingLow-medium viscosityVacuum defoaming / Low-speed vacuum stirringMIX60 / MIX1000plus

Our Partners

Trusted by leading industrial manufacturing clusters and advanced university laboratories worldwide

Partner Showcase

FAQ - Frequently Asked Questions

Answers to common questions about product performance and everyday process selection

  • What is the working principle of a centrifugal defoaming machine?

    Principle of centrifugal defoaming machine: The bubbles are released by the downward principle of gravity.

  • How is the after-sales service?

    The company has professional after-sales service personnel, 24-hour dedicated service, and one-on-one technical support to solve your worries.

  • Why choose SIENOX?

    There are many reasons for choosing SIENOX, and the following are some of the main reasons:

    1. Professionalism: Our team consists of a group of professional individuals with rich experience and knowledge in their respective fields. We not only understand industry trends and best practices, but also provide practical and feasible solutions.

    2. Service quality: We focus on customer needs and satisfaction, and are always committed to providing high-quality services. We not only respond quickly to customer needs, but also provide customized services according to their requirements.

    3. Reliability: We adhere to the principles of integrity and professionalism, always adhering to commitments and agreements. Our work methods and deliverables comply with industry standards and best practices, enabling our clients to trust us.

    4. Innovation: We continuously explore new methods and tools to provide better services and meet customer needs. We encourage innovation and experimentation, and are willing to accept challenges and change.

    5. Cost effectiveness: We provide cost-effective services that not only help customers save costs, but also improve efficiency and productivity. We always prioritize the interests of our customers and provide them with the best solutions.

    6. Teamwork: We believe in the power and value of teamwork, and our team members support, collaborate, and respect each other. We establish close cooperative relationships with customers, partners, and other stakeholders to achieve common goals.

    The above are just some of the reasons for choosing us. We believe there are many other advantages and values that can be provided to customers. If you are looking for a professional, reliable, and high-quality service provider, we look forward to working with you.


  • How does the stirring and defoaming machine work?

    The SIENOX stirring and defoaming machine performs defoaming through centrifugal force at revolution and stirring through shear force formed by revolution and rotation,

    Assisted by a vacuum pump to extract gas and achieve a vacuum state, removing nanoscale tiny bubbles. No contact with materials, no secondary pollution, and no secondary waste.

  • What is the function of a defoaming machine?

    A defoaming machine is a device used to remove bubbles from liquids. Its function is to assist in the liquid mixing, reaction, coating, printing, infusion and other process steps in the production process, avoiding the generation of bubbles and their impact on the final product. In many industrial and laboratory environments, removing bubbles is essential as they may have a negative impact on product quality, such as affecting surface tension and stability. Defoaming machines typically use various techniques such as vibration, ultrasound, centrifugation, etc. to achieve effective bubble removal. It has a wide range of applications, including but not limited to semiconductors, solar energy, optics, biotechnology, materials science, etc.

Technical Specification List

Full‑line standardized specifications for accurate process evaluation and equipment selection

Flexographic Ink ApplicationTypical StateRecommended Defoaming MethodRecommended Equipment
Small-batch Color Switching / SamplingSmall amount of water-based inkCentrifugal / vacuum defoamingC Series / ZK Series
Water-based Ink for Paper Cups & BowlsLow-medium viscosityVacuum defoamingZK Series / MIX60
Water-based Ink for Corrugated CartonsMedium viscosityVacuum stirring and defoamingMIX Series
Label / Film Flexographic PrintingLow-medium viscosityVacuum defoaming / Low-speed vacuum stirringMIX60 / MIX1000plus

Multi‑Industry Solutions

Covering stirring and debubbling applications of typical materials across six major industries

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Paper Cups & Bowls

Printing for paper cups, paper bowls and paper food containers

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Food Packaging

Paper bags, cartons and outer food packaging bags

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Corrugated Cartons

Water-based ink printing for cartons and corrugated boards

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Label Printing

Flexographic printing for self-adhesive labels and bottle stickers

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Film Flexographic Printing

PE/PP film shopping bags and packaging films

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Water-based Ink Factory

Production, color matching and filling of water-based ink

Comprehensive Equipment Operation Demo Videos

Gain intuitive, clear, dynamic insight into synchronous defoaming with planetary centrifugal force and high negative pressure.

Measured Defoaming‑Process Performance

Measured Processing Results for Six Typical Materials

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Paste Materials

Photoresist Stirring & Defoaming.jpg

Adhesive with Powder

Polymer Materials.jpg

Polymer Materials

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Pharmaceutical Gel

Silver Paste Powder Stirring & Defoaming.jpg

Silver Paste Materials

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Battery Slurry



Precautions for Use

NotesOperation Instructions
Appropriate Vacuum LevelApply moderate vacuum for water-based ink defoaming. Excessive vacuum may impair ink wettability and drying performance.
Slow Pressure ReliefRelease pressure slowly after defoaming to prevent foam re-entry and ink splashing.
No Defoamers AddedRely primarily on vacuum defoaming. Avoid extra defoamers that may compromise adhesion and hygiene for food packaging.
Ink CirculationCheck ink transfer on anilox rollers after defoaming. Start batch printing only after stabilization.

* Internal laboratory test data. Actual results vary with ink formula and printing process. Contact sales for real customer cases.

Customer Delivery & Application Cases

Rooted in manufacturing frontlines, empowering benchmark production lines and key national research institutions across diverse industries.


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Stirring‑Defoaming Solution for Glue Materials in Consumer‑Electronics Industry


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Industrial University Solves Bubble Challenges of Coating‑Film Materials with SIENOX Defoaming Machine

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