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DLS News


Below is a list of the 10 most recent DLS news articles from our news blog.

If you would like to view our old or archived news items for the DLS Group, feel free to visit our Group News site.



UV Resistant Black Is The New Black…

03 July 2017 11:52:11

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Ultraviolet (UV) rays are electromagnetic radiation rays that are invisible to the human eye and make up 10% of the total light output of the sun. Different types of radiation create different effects and although UV radiation doesn’t have the energy to ionise atoms and pose adverse health effects like other radiation forms, it does have the potential to trigger chemical reactions.

UV degradation is the name given to the reaction caused by materials absorbing UV rays and the break down process that this causes. Plastic materials such as polypropylene and LDPE are particularly susceptible to UV degradation after being exposed to unfiltered sunlight and atmospheric oxygen. Plastic UV degradation is often characterised by mouldings fading in colour, having a chalky or cracked surface texture or components becoming brittle and failing completely. In order to produce mouldings and components for external use that are resistant to UV radiation, a UV resistant additive or material must be used during the moulding process.

DLS Plastics has been using UV resistant additives in its external use components for many years.  Designers and engineers have been using knowledge gained from use of an in house weather tester to optimise mouldings and make the most of additives to provide as much protection as possible. More recently DLS has been able to offer a white material that has been developed and compounded specifically to provide a higher level of resistance to the effects of UV radiation and significantly extends the life expectancy of the final plastic moulding.

After considerable interest and a high number of requests, this material is now stocked in black – providing glossy, stylish black mouldings that still have the same high level of protection against UV rays. Please see below a selection of existing products that have already been manufactured using this material.

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If you have an external plastic component that you think would be benefit from a black UV resistant material, please contact our design team today on 01476 564549.

 




Metallic Components Without Metal Compromises

07 March 2017 09:53:00

Metallic

Compromise; the expedient acceptance of standards that are lower than is desirable.

If your looking for metal-like aesthetics but don’t want the cost, weight and maintenance requirements of metal components , we don’t think you should compromise.

As part of our constant strive to be ahead of the curve in Injection Moulding technology, we are trialling a new range of materials which give a high gloss metallic finish to final mouldings. These materials create a premium, metal-like aesthetic, from a light weight, cost effective and maintenance free plastic component.

In order to get the best from the material, and ensure an imperfection free moulding, the DLS Plastics design team are able to create a mould tool design that is optimised for this type of material. Creating a plastic moulding with a metallic finish that is smooth and does not have flow marks is a difficult process, but is one that the highly trained design team on site at DLS Plastics, together with the experienced mould room staff, are mastering.

If you have a project that you think would benefit from metallic plastic components, contact our design team today on 01476 564549.

 

 

 




Not So Rubbish: The DLS Approach To Recycling

29 November 2016 16:43:12

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The UK uses over 5 million tonnes of plastic each year, of which an estimated 29% is currently being recovered or recycled. The government target for plastic recycling in 2020 is set at 57%, meaning that both household and commercial and industrial (C&I) consumers need to be more proactive than ever when it comes to recycling plastic materials and reducing land fill waste.

DLS Plastics Ltd has always endeavoured to recycle as many materials as possible, an approach which can be identified and described best using the DEFRA (Department for Environment, Food & Rural Affairs) Waste Hierarchy.

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Source: https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/69403/pb13530-waste-hierarchy-guidance.pdf

Prevention: 

One of the biggest factors to consider when reducing the environmental impact of producing plastic components, happens long before the product has even been physically moulded. Consciously designing components to require less material input not only reduces the amount of material consumed, but also helps to reduce the energy required during the moulding process as well as providing cost reductions for manufacturers and consumers. The design team on site at DLS Plastics optimise mould tools to use the minimum amount of material to achieve the perfect moulding. This approach combined with the knowledge and efficiency of the injection moulding machine operatives means minimal wastage and material usage.

Preparing For Reuse: 

Another strategy to consider when reducing plastic consumption, is to evaluate whether certain materials, components or parts can be used in other applications rather than being disposed of. With so many different designs and components created since DLS Plastics Ltd began trading in 1973, often it is the case that a requirement for a new product can be fulfilled using a component or material that was originally manufactured or sourced for a different application. This also applies to other aspects, not just plastic components and materials. For example, new mould tools can be produced using material and components sourced from obsolete mould tools.

Recycling

By far the most important level of the waste hierarchy to consider when reducing the environmental impact of producing plastic components, is recycling. Inevitably there will always be a level of ‘consumption’ in manufacturing that cannot be avoided. For example mouldings that are manufactured but never get used by customers, pre-production sample mouldings where the tool is subsequently tweaked or mouldings that are faulty. It is important to see the value of the recycled material, even if it does not equal the original value of the raw material. Using 3 on site regrind machines, DLS are able to convert moulded components back into granulated materials ready to be reused in injection moulding machines. Any material that cannot be reused by DLS, because moulding applications specify virgin material use only, is supplied to a network of external plastic recycling specialists to be used by others.

A recent boost to the DLS Plastics recycling efforts is the advent of a semi automatic baling machine. This allows for plastic packaging materials such as polythene bags or pallet stretch wrap, to be collected and baled before being supplied to external plastic recycling specialists to be shredded, recycled and reused by other manufacturers in various applications.

Other non-plastic recycling measures taken on site at DLS Plastics include:

  • Baling and recycling of cardboard boxes and paper
  • Recycling of used lubricants and machine oils
  • Recycling scrap and metal components
  • Recycling damaged wooden pallets

Other Recovery

The other recovery level of recycling refers to incineration with energy recovery, anaerobic digestion, gasification and pyrolysis. All of these processes do not take value in the make up of the recycled materials, but in what product or energy can be made as a by-product of breaking the materials down – for example heat energy or bio fuel. This stage of recycling is handled by a waste management company externally of DLS Plastics who collect and separate waste before recycling or disposing of it.

Disposal 

Inevitably, not all materials are able to be recycled and until technology comes along that can change that, these materials will end up in landfill sites. The landfill waste produced at DLS Plastics is kept to an absolute minimum via the measure outlined above.

As plastic manufacture and oil consumption grows in the UK, its is becoming more and more important to realise the value of recycling materials and making good use of items that still have plenty of life left. DLS Plastics Ltd will always strive to be at the forefront of recycling measures and keep its finger on the pulse when it comes to being environmentally conscious and reducing the consumption of natural resource based materials.

 




New Injection Moulding Machines Arrive at DLS Plastics

19 May 2016 16:53:20

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2 brand new Wittman Battenfeld Smart Power 120T Injection Moulding machines were recently delivered and installed at DLS Plastics Ltd’s Grantham site.

Wittmann Battenfeld have developed their Smart power 25 – 350T injection moulding machines to be their most efficient and user friendly machine to date. With innovative features such as open drop areas for quick and easy part ejection, a centralised hydraulic clamping system to provide fast and even clamping and precision linear guides to provide support and protection for light or heavy moulding tools.

The new machines also offer many features to allow DLS to closely monitor and reduce energy usage wherever possible. The use of an energy saving servo allows maximum effort from minimum energy input and means short cycles time are easily achievable.  KERS (Kinetic Energy Recovery System) has also been utilised to reduce energy consumption. Currently used in Formula 1 Motorsport, KERS is usually associated with the automotive industry. However, Wittmann Battenfeld have installed the latest technology, to return and store energy generated during the deceleration processes of  moving parts. This energy is stored internally and then used for other processes such as barrel heating or for control module use.

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The decision was made by DLS to opt for Wittmann Battenfeld machines based on the previous excellent experience with both their machines and the company as a whole. The 2 new machines were selected to allow for an increased scope of moulding in terms of hydraulic clamping pressure. They will also allow for a higher number of moulding jobs to be carried out in a shorter amount of time, meaning that ever increasing customer expectations can be met quickly and efficiently.

 

Need Help?
need help? Call or email us now. For all enquiries please feel free to contact a member of our staff using the details below:
Tel
+44 (0)1476 564549
Fax
+44 (0)1476 567538
Email
sales@dlsplastics.co.uk