Innovative Solutions for a Sustainable Future with Compostable BIO-POLYMER COMPOUNDS!

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Who We Are

About

Keshawin is a new venture of the Welset Group Promoted by Mr. Arvind Mehta Chairman & Managing Director of Welset Plast Extrusions Private Limited with Ms. Keshavi Mehta Director of Welset.

Welset Plast Extrusions Private Limited., is a 55-year-old company founded in 1968. The company is rated as one of the leading manufacturers of additives and color, black & white masterbatches with more than 5000+ colors. The Manufacturing Unit is at Silvassa. It exports 40% of its Masterbatches globally.

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Our Vision

Keshawin Bio-polymers Pvt Ltd is set to revolutionize the industry by producing Bio Polymer Compound in collaboration with the esteemed German company. Our state-of-the-art manufacturing unit in Silvassa is equipped with the latest machinery, ensuring a capacity of 100 MT per month.

PLA (Polylactic Acid)

What is PLA?

Polylactic acid, also known as PLA, is a thermoplastic monomer derived from renewable, organic sources such as corn starch, sugar cane, tapioca root, cassava, and sugar beet pulp. PLA is the second most produced bioplastic (after thermoplastic starch) and has similar characteristics to polypropylene (PP), polyethylene (PE), or polystyrene (PS), as well as being bio-degradable. PLA like most plastics made from naphtha (petroleum), it is thermoplastic and can be moulded and processed in a wide range of applications.

How PLA is Produced?

Polylactic acid (PLA) is made by converting plant starches and sugars into a biodegradable thermoplastic polymer through harvesting, fermentation, and polymerization. PLA is an aliphatic polyester produced through either direct condensation of D-Lactic acid as well as through catalytic ring-opening polymerization of lactide, a cyclic dimer derived from lactic acid generated by fermenting plant-based sugars (corn starch, sugarcane, cassava).

PLA Production Pathway

PLA Production Process

PBAT (Polybutylene Adipate Terephthalate)

What is PBAT?

PBAT (polybutylene adipate terephthalate) is a biodegradable and compostable thermoplastic co-polyester widely used as an eco-friendly alternative to conventional flexible plastics like low-density polyethylene (LDPE). PBAT, a copolymer of aliphatic and aromatic compounds, combines the excellent degradation property of aliphatic polyesters and the good mechanical property of aromatic polyesters. The processing property of PBAT is similar to that of LDPE, can be processed on conventional LDPE processing equipment. Unlike other Bio-polymers PBAT is not produced from renewable resources; it is a petroleum-based (fossil fuel-derived) synthetic polymer.

How PBAT is Produced?

Polybutylene Adipate Terephthalate (PBAT) is produced through the esterification and polycondensation of three primary monomer precursors: 1,4-butanediol (BDO), adipic acid (AA), and terephthalic acid (PTA). The process involves esterification, transesterification, polycondensation and melt processing steps under controlled temperature and vacuum conditions.

PBAT Chemical Synthesis & Reaction Scheme

PBAT Production Reaction

PBS (Polybutylene Succinate)

What is PBS?

PBS Compound stands for Polybutylene Succinate, a biodegradable polyester resin. Derived from renewable resources, PBS is known for its biodegradability in soil and composting conditions. It serves as an eco-friendly alternative to traditional plastics, particularly in the creation of biodegradable films, bags, and single-use plastic alternatives.

How is PBS Created?

By harnessing locally sourced vegetable residues, we transform them into a wide range of sustainable and eco-friendly products. Our biodegradable plastics are available at short notice, and we welcome customization to meet unique requirements or create custom polymers.

Products

Keshawin BioCelain® is our expanding line of bio-based, biodegradable plastic products.

Explore our significant products

Keshawin BioCelain® A 1100 S

For thin-walled applications like flower pots or buckets, injection moulding is used.

Keshawin BioCelain® A 140 S

For technical parts, dishes, and closures, injection moulding is used.

Keshawin BioCelain® A 120 S

For consumer goods and reusable packaging, injection moulding is used.

Keshawin BioCelain® A 105 S

Extrusion and injection molding for films, textile fibers, deep-drawing applications.

Keshawin BioCelain® A 101 S

It is suitable for extrusion processes to create bottles and films.

Why Choose Keshawin

Eco-Friendly Composition

Our products are made from fermented scratch and sugar. Colored with natural, health-safe mineral dyes.

Coloration

The material is colored with natural mineral dyes, ensuring health-safe and sustainable color options.

Composition

Keshawin BioCelain® by A Series is made from fermented starch and sugar, providing an eco-friendly foundation.

Recyclability

Keshawin BioCelain® A Series is 100% recyclable. At the end of its product lifespan, it can be granulated and reintroduced into the manufacturing process to create new items, reducing waste and environmental impact.

Versatile Applications

This sustainable material is suitable for a wide range of products across various industries. It finds applications in the medical sector, households, automobile and apparatus construction, and the packaging industry.

Processing Flexibility

Keshawin BioCelain® A Series can be processed using a wide range of methods, from injection molding to extrusion, blow molding, and even 3D printing, depending on the specification.

Energy Efficiency

The sheet is exceptionally energy-saving and eco-friendly. When processed using the DCIM direct compounding process, it consumes up to 50% less energy (around 500 Wh) per kilogram of material compared to conventional plastics processing.

Biodegradable

In biologically active, moist environments, Keshawin BioCelain® A Series can naturally degrade within months, much like untreated wood or bamboo. This makes it an excellent choice for reducing environmental impacts

Performance

It boasts the quality and feel of porcelain. Additionally, it offers excellent heat-insulating properties, making it a versatile and eco-conscious choice for various applications. Not only is it dishwasher-safe, but it also increases the durability of products like toothbrushes.

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