antibacterial coating equipment Archives

Antibacterial Coatings and Coating Equipment

The demand for antibacterial coatings on frequently touched surfaces has long existed. With the rising public health and domestic hygiene awareness, decorative coatings on SS and ceramic products, such as taps, door handles, hand rails, tiles,faucets, bathroom fittings with antibacterial properties may attract more attention from consumers than ever.

Royal Technology developed the antibacterial functional coating without making the process too complicated and also can retain other PVD properties:

– Green coating technology

– Low production cost

– High antibacterial effectiveness and long lasting

– Scratch resistance

– Corrosion & wear resistance

We are ready to share this advanced technique with our customers, anyone who is interested in providing the antibacterial finishing as a high added-value on your products, please contact us for a FREE consultation.

Antibacterial Coating Machine: RT1400-AntiBac

PVD Coatings in Medical Devices Industry – Application

The PVD Coatings in Medical Industry History

The PVD coating technology has been introduced to the medical device industry since late 1980s, physical vapor deposition (PVD) has become widely used to deposit wear-resistant thin-film coatings on a variety of medical devices, including orthopedic implants, pacemakers, surgical instruments, orthodontic appliances and dental instruments.

The Coating Properties and Applications

The value of PVD technology rests in its ability to modify the surface properties of a device without changing the underlying material properties and biomechanical functionality.

PVD coatings provide a number of benefits to medical devices in addition to hardness and adhesion. The most significant are

– Improved wear resistance
– Reduced friction
– Biocompatibility
– Decorative colors & aesthetic
– Chemical barrier
– Nickel Sensitivity
– Saline Solutions
– Sterilization

The Applications:

Orthopedic Implants

– Bone Implant Moving Components (hips, ankles etc.)
– Surgical Tools (Instruments)
– Dental Instruments and Brain Implants
– Orthopedics, Arthroscopic and Endoscopic Components

Welcome to contact us to discuss the your application possibilities with ROYAL TECHNOLOGY’S engineers.

PVD Coatings in Medical Devices Industry – Bio-compatibility

PVD Coatings With Biocompatibility Testings

The biocompatibility of a coating is a prerequisite to its use on medical devices.

For this reason, we have tested the biocompatibility of all the coatings that it applies, with the exception of TiN, which has been widely reported to be biocompatible.

Coatings are certified biocompatible based on a series of tests conducted by an independent biological-testing laboratory. These tests were conducted in accordance with ISO 10993-1 guidelines for materials that experience short-term body contact. The results indicate that TiN, ZrN, CrN, TiAlN, AlTiN are acceptable for external and internal medical devices that contact bone, skin tissue or blood.

Biocompatibility tests completed include the following:

1. Sensitization: no significant evidence of causing delayed dermal contact sensitization in a guinea pig.

2. Cytotoxicity: no evidence of causing cell lysis or toxicity.
3. Acute Systemic: no significant systemic toxicity or mortality.
4. Intracutaneous: no evidence of significant irritation or toxicity in rabbits.
5. Genotoxicity: not mutagenic.
6. USP Muscle: non-irritating to muscle tissue.
7. Hemolysis: nonhemolytic, compatible with blood.

#	Coating Film	Color	Hardness HV	Coefficient of Friction	Biocompatibility Testing
1	TiN	Gold	2300-2500	0.35	Pass
2	CrN	Silver	2000-2200	0.35	Pass
3	TiN/TiCN	Bronze/Gray	2800-3200	0.3	Pass
4	AlTiN	Violet/Black	3000-3400	0.35	Pass
5	TiAlN	Copper/Bronze	3000-3200	0.4	Pass
6	ZrN	Pale Gold	2300-2500	0.35	Pass
7	DLC (a-C:H)	Black	2000-3000	0.1	Pass
8	AlTiCN	Black	1200-1800	0.2	Pass
9	AlTiN	Black	1200-2000	0.2	Pass

Note: The data generated from laboratory samples. Coating film properties may vary depending on customer’s material, surface condition ( high polished or others) and products 3D geometry.)

Reference:

1. Pappas and Buechel, 41st Annual ORS Meeting, March 1994.

2. Coll et al, Surface Coating Technology, 1988.

Please contact us to find the suitable PVD coating solutions and PVD coater systems for your products.