Near Infrared Absorber for Laser Beam Welding
Laser beam welding is a new and innovative joining technique for plastics and has advantages that cannot be achieved with conventional joining techniques. In this news bulletin a short overview of this technique, with its advantages, will be given. Our Omnistab NIR, a versatile Near Infrared Absorber for this powerful technique, is introduced.
Laser Technology
Laser technology was originally used in 1970 to weld plastic film with CO2 laser.
In 1985, Toyota developed the technology of laser beam transmission welding and applied it to the manufacture of automotive plastic parts. However, due to the high cost, the application of laser beam welding was restricted. In recent years, by cost reduction and progress of technology, this laser beam welding technology widely attracted the attention of the industry and has been improved rapidly.
By what we call TLW (Transmission Laser Welding), the object consists of a part which is transparent for the laser beam and another part which is not. The laser light passes unhindered through the transparent part but is blocked by the non-transparent part. In the contact region where the laser light cannot travel any further it is converted into heat which melts the plastic and so welds the two parts together. It is important that the two parts are firmly clamped together to give a neat weld without any unwanted spacing.
Advantages
Laser beam welding generates very clean and precise weld seams without any residues or loose particles in the interface or on the surface. Because of the small heated area very fine welding lines are possible without causing mechanical stress. Even for sensitive materials of different mechanical strength or stiffness. In contrast to ultrasonic welding laser beam welding does not cause vibrations. This makes it suitable for joining components containing sensitive electronic parts. In general, due to the clean, precise and pollution free process laser beam welding is playing an increasingly important role in the field of electronics, medical components and automobile manufacturing.
Initially carbon black was used as the laser absorbing component in the non-transparent part. Carbon black has a very strong absorbance for the laser beam but also for all other wave lengths, that is why it is black. Because of that it will influence the color of the plastic part to be welded. It will make any preset pigmentation deeper in color. Which might be undesirable.
Research over the last years has resulted in components which absorb the laser beam but let other wavelengths pass. In order to be universal applicable the absorption of the laser beam should not depend on the color of the pigmentation nor the density of the pigmentation, so should not have a wave length in the visible region. The wavelength should not be too long either, viz not in the infrared as most plastics will absorb strongly there, which will inhibit passing of the laser beam through the upper (laser)- transparent part.
Near Infrared Absorber; Omnistab NIR
As a result of our research, we have come up with Omnistab NIR. This is a lightly colored organic compound with absorbance from 850 nm till 1250 nm. This absorbance allows the use of Nd:YAG, high power diode and fiber lasers available in the industry.
The absorption of the Near Infrared Absorber lies in between the visible range and the infrared range. It allows colored parts, opaque or transparent, to be joined together without influencing the color of the product.
Omnistab NIR is available as a liquid dispersion with particle size in the nano region. This in contrast with most other products which are supplied as powders. This is a more critical dispersion in matrix or surface applications. Omnistab NIR is compatible with almost all macromolecular plastics. It can be used as bulk (injection moulding) or surface (coating) component. For convenience we also can offer PC master batches with the Omnistab NIR included.
For more technical product details about this Near Infrared Absorber, see our product data sheet.
Omnistab Benzophenone UV absorbers
We have different Omnistab Benzophenone UV absorbers in our portfolio. These UV absorbers have a…
Liquid Benzotriazole UV absorbers
Liquid Benzotriazole UV absorbers solve the challenges of high-end coatings. Under outdoor conditions, some coatings…
Improve the thermal stability of silicone adhesives
In this article we will introduce our Omnistab additives, which improve the thermal stability of…
UV resistance solutions for plastics
To efficiently protect plastics from degradation we offer UV resistance solutions for plastics. In order…
Solution to aging of Photovoltaic (PV)
Global energy is accelerating the transition to an efficient, clean and sustainable direction. The development…
How to obtain high quality PU foam products?
There are two types of polyurethane (PU) foam; soft foam and rigid (hard) foam. Soft…
Chinaplas 2023
We will be exhibiting at the upcoming Chinaplas. The Chinaplas is being held in Shenzhen…
How to maintain the high performance of coatings?
To be able to answer the question how to maintain the high performance of coatings,…
European Coating Show 2023
We will be exhibiting at the upcoming European Coating Show (ECS). The ECS is being…
Polyamide engineering plastic
Polyamide (abbreviated PA), commonly known as nylon, is the common name of the thermoplastic resin…
Polyurethane Sealants
Polyurethane sealants are composed of polyurethane rubbers and polyurethane prepolymers. Such sealants have high tensile…
Happy holidays
On behalf of our team: we wish you happy Holidays, all the best to you…
Expectations for early 2023
We as Partners in Chemicals want to ensure that we can serve our customers on…
Better weather resistance of polypropylene fabric
Polypropylene (PP) fiber is a synthetic fiber spun from isotactic polypropylene, which is polymerized by…
Dubai branch office management buy-out
Since 2014 Partners in Chemicals is, under the name of ICG Specialty ChemicalsFZCO, operational in…
Thank you for visiting us!
Thank you for visiting us during Plasteurasia 2022 at the booth of our partner Etkin…
Hindered phenolic antioxidants for protection of polymers
Hindered phenolic antioxidants are compounds that have substituents on one or both sides of the…
K fair 2022 in Düsseldorf
We will be exhibiting at the upcoming K fair in Düsseldorf for the 5th time…
Thermoset plastics – how to improve its durability and color stability?
Thermoset plastics, with thermosetting resin as the main component. It is a plastic that forms…
How to obtain better performance with Polyurethane adhesives?
Polyurethane (PU) adhesives are adhesives that contains -NHCOO- and/or isocyanate group (-NCO-) in the molecular…
Modified plastic in lightweight cars
In recent years, the development of the automotive industry revolves around lightweight, environmental protection and…
How to alleviate polyurethane yellowing?
In this article we will explain how to alleviate polyurethane yellowing. Polyurethane products are widely…
Making high-end textiles UV-resistant
UV-resistant treatment is an essential part of the functional textile finish for making high-end textiles…
Silicone adhesives
The silicone adhesives used in the early days came from natural materials. For instance, animal…
Optical Brighteners
Optical Brighteners are additives to mask the inherent yellowness and improve colors and make your…
Water-based sustainable paint
As people’s awareness of health and environmental protection is gradually improving, water-based sustainable paint is…
Omnistab Benzotriazole UV absorbers
Omnistab Benzotriazole UV absorbers have exceptionally strong and broad UV absorption properties throughout the UV…
Limit electricity for carbon reduction
The Chinese government has decided to limit electricity for carbon reduction. China is aiming to…
Excellent hydrolysis resistance phosphite antioxidant
Do you choose the right antioxidant to increase the heat aging resistance of materials? The…
Plastics with UV absorbers, a “Protective umbrella”
Almost all plastics that are exposed to sunlight or other outdoor weather conditions require protection….
Efficient liquid UV absorber
The Omnistab UV 1 is an efficient liquid UV absorber, which can absorb ultraviolet light…
Nucleating agent for polyamide
In this article, we will take a closer look at a nucleating agent for polyamideThe…
Omnistab series for automotive coatings
Automotive coating is one of the fastest developing coatings worldwide. New products are usually better…
UV Filter Sunscreen
Meteorologically, it is still winter in the Northern Hemisphere. However, the first rays of the…
What do you know about Powder coating?
What is powder coating? It is quite simple, but we would like to explain it…
Adhesives and Sealants protective products
Adhesives and sealants are essential products in many industries. Their applications range from paper, packaging,…
The world of fiber applications
What are fiber applications? Today, more than half of all fiber consumed is synthetic. For example,…
“Gorgeous modification” of Benzotriazole UV absorber
Omnistab UV 360 is a very efficient benzotriazole UV absorber. It has good UV absorption…
Expectations early 2021
This year was different from other years and a huge challenge for everyone. Working differently…
New product groups
New product groups coming soon! We are continuously working on our product portfolio to serve…
Today’s highlight is a triazine UV absorber
A triazine UV absorber has excellent properties. In addition, the dosage you need to put…
Antioxidant for long-term thermal stabilization
Looking for an antioxidant for long-term thermal stabilization? You probably need an asymmetric hindered phenol…
UV Absorber used in a wide wavelength spectrum
In this article we will explain more about the UV absorber used in a wide…
Temperature resistant anti oxidant
An excellent temperature resistant anti oxidant is the Omnistab AN 80. The organic combination of…
PP Fibers
Looking for more stability of your polypropylene fibers (PP fibers)? Our Omnistab LS 119 is…
PE wax
In this article we will explain the characteristics and features of polyethylene wax (PE wax)….
Evaluation of new light stabilizers
Choosing your product among all available light stabilizers in the market is challenging. Based on…
Light stabilizer 2020
As of June 2020, we expand our product range with the development of, ironically, Light…
Sustaining Textile
Producing sustainable products is a hot topic. Especially in the field of clothes, it all…
Prolong the lifecycle of your engineering plastics
Engineering plastics and resins instead of metal? Yes we can. In this article we will…
UV absorbers in cosmetic industry
Sunscreen is an eternal topic in cosmetics, but it cannot exist without UV absorbers in…
Chinaplas 2021
Under current circumstances of the COVID-19, the Chinaplas will be postponed again. The 34th Chinaplas…
Omnistab Additives in Water-based Coatings
Water-based coating are coatings that uses water as a diluent and does not contain organic…
Corona virus
In this news letter we give you an update regarding to the latest Corona virus…
Additives for polyolefins
What are polyolefins? Polyolefin is a type of polymer of olefins. For example, polypropylene or…
Principles of stabilizers
Light stabilizers are important additives in rubber and plastic applications. In this article we focus…
Happy Chinese New Year
It has been a pleasure to work with you this year, we wish you a…
Anti yellowing agents
We launched two anti yellowing agents, Omnistab HN 130 & Omnistab HN 150. Both are…
Comparison test PA6 with Omnistab LS 5519
In October we introduced the new light stabilizer for Polamide (PA); Omnistab LS 5519. To…
Light stabilizer for nylon – Omnistab LS 5519
Omnistab LS 5519 is a highly efficient light stabilizer for nylon. For example, polyamide (PA)….
Liquid Anti Oxidant
In the world of additives you see a large group of anti oxidants in powder, granular and flake form. However, if you are looking for a liquid anti oxidant
UV absorber for agriculture film
There are many different UV absorbers, but there is one that really stands out if…
Natural Rubber Latex
Since the start of Partners in Chemicals we offer the market Natural Rubber Latex. Natural…
Explosion Eastern China
An explosion at a pesticide plant in eastern China is the latest in a series…
End of cooperation with the NRC Group
Partners in Chemicals has decided, in mutual agreement with Nordmann Rassmann (NRC), to end our…
Evaluation of three UV absorbers
In this article we evaluate three different UV absorbers. They have advantages and associated characteristics….
High performance light stabilizer for coatings
In this article we highlight the performances of our Omnistab LS 123. This product is…
Update on chemical factory closures in China
The main purpose of China’s “Cease-Work Orders” is to optimize the atmospheric environment and control…
Introducing N3coat
It’s all about people “I believe in an honest and open way of doing business….
Omnistab NIR LW
The right laser absorber The diode laser has a wavelength of 800 ~ 1000nm and…
How to stop the yellowing of polyurethane flexible foam
A great number of manufacturers, including those that make high-grade sponge, have tried different solutions….
Liquid triazine UV absorber
Omnistab UV 400 is a liquid triazine UV absorber for coating products. We specially developed…
Chinaplas 2017
Partners in Chemicals presents Together with Longquan Chemicals, our booth in Hall 9.3 on stand…
Daniel Knegt
ITU WPS Gold Coast Recently he participated in the ITU WPS Gold Coast with his…
OMNISTAB UV 1600
Therefore, polymer additives are essential during manufacturing processes. It safeguards the exquisite look of surfaces…
Restrain on Chinese chemical production
The Chinese government started a straightforward campaign to decrease water pollution to control the waste…
ICG Specialty Group expands portfolio
The ICG Specialty Group is a global supplier of polymer additives whose proprietary Omnistab brand…
European Coatings Show 2016
During the European Coatings show we also showed the new generation product: Omnistab NIR. Its…
New environmental laws implemented
Why is the Chinese Chemical industry struggling? “There is still large gap in result between…
Introducing partnership with Deltachem
A Chinese partner of choice “We work with people from the Netherlands, China, Israel, Dubai,…