Bajaj Masterbatches · Box Strapping Application
Masterbatch for
Superior Strapping.
Premium masterbatch solutions that elevate the strength, colour, and performance of PP box strapping — from light-duty bundling to heavy industrial packaging.
What is Box Strapping?
Box strapping — also known as bundling & banding — is the process of applying a strap (PP primarily) to an item used in industrial settings to combine, stabilize, hold, reinforce, and fasten it securely.
This keeps materials looking good, functioning properly, and reaching their final destination safely. It is used to secure freight loads during transit, unitize loose materials, and protect stacked pallets of cartons.
📦 Key uses include securing loads on flatbed trucks & railcars, palletizing products, bundling loose materials, and safeguarding packaged goods throughout the supply chain.
Types of Strapping Materials
Strapping is selected based on load weight, application duty, and environmental conditions — each polymer offering distinct advantages.
PP Strap (Polypropylene)
An economical choice for light to medium duty unitizing, palletizing & bundling. Oriented/tensilized PP offers higher elongation at break but may exhibit irrecoverable dead stretch under constant stress. Ideal for carton sealing and general purpose bundling.
PET Strap (Polyester)
The strongest plastic strapping product — a viable alternative to steel strapping. PET offers excellent retained tension on rigid loads, superior recovery properties, and the ability to absorb impact without strap breakage. Perfect for heavy-duty industrial use.
PA / Nylon Strap
Nylon (PA 6, PA 66) strapping — oriented or tensilized — for applications requiring exceptional elasticity, chemical resistance, and performance at elevated temperatures. Used where PP and PET cannot meet demanding load requirements.
Why Masterbatches are
Essential in Box Strapping
Masterbatches are concentrated mixtures of pigments, additives, and functional agents that transform raw polymer into high-performance strapping material — imparting colour, strength, and durability.
Consistent Colouring
Achieve uniform, vibrant colours throughout the strap without pigment migration or uneven dispersion — critical for brand identification and product differentiation.
UV Stabilisation
UV masterbatches protect straps from photodegradation during outdoor storage and transport, preventing brittleness, colour fade, and mechanical failure.
Enhanced Tensile Strength
Filler and reinforcing masterbatches improve tensile properties, ensuring straps can withstand high-load applications without deformation or snapping.
Thermal Stability
Heat stabiliser masterbatches ensure dimensional stability and prevent degradation during the high-temperature extrusion process and in demanding service environments.
Antistatic Performance
Antistatic additives prevent static charge build-up, critical for electronic component packaging and safety in certain industrial strapping environments.
Cost Optimisation
Filler masterbatches reduce raw material costs while maintaining mechanical performance — enabling manufacturers to produce quality strapping at competitive price points.
How Box Strapping
Is Manufactured
A precise, multi-stage extrusion and orientation process transforms raw polymer pellets into high-tenacity strapping tape ready for industrial use.
Raw Material + Masterbatch Mixing
PP base polymer is blended with Bajaj colour & additive masterbatches in precise ratios for consistent performance.
Extrusion
The homogeneous melt is fed into a single-screw extruder at controlled temperatures (200–260°C) to produce uniform continuous tape.
Water Bath Quenching
Freshly extruded tape passes through a water bath to rapidly cool and solidify the polymer structure before stretching.
Orientation / Tensilizing
The cooled tape is stretched (5–8× its original length) between heated rolls — aligning polymer chains to dramatically boost tensile strength.
Embossing & Annealing
Surface texture is embossed for grip enhancement. Annealing relieves internal stresses and stabilises dimensional properties.
Winding & Dispatch
Finished strap is precision-wound onto cores or reels at specified widths and lengths, ready for packaging and dispatch.
Key Features of Bajaj
Masterbatches in Box Strapping
Superior Pigment Dispersion
Bajaj masterbatches are engineered for ultra-fine, homogeneous pigment dispersion within the polymer matrix. This eliminates colour streaks, agglomeration, and die contamination — ensuring every metre of strap is colouristically consistent. Our proprietary twin-screw compounding technology achieves dispersion that outperforms standard alternatives.
High Carrier Compatibility
Our masterbatches are formulated with PP carriers, ensuring flawless melt compatibility, no delamination, and excellent mechanical property retention in the final strap.
Thermal Resistance
Specially selected heat-stable pigments and additives withstand the harsh extrusion temperatures required for PP strapping (up to 280°C) without colour shift or degradation.
Precise Let-Down Ratios
Optimised loading levels (typically 1–4%) deliver full colour and additive functionality with minimal addition — maximising economy without compromising performance.
Eco-Conscious Formulations
Bajaj masterbatches are developed in compliance with global regulatory standards (RoHS, REACH). Heavy-metal-free pigment systems and recyclability-friendly formulations ensure our products support sustainable packaging supply chains without sacrificing technical performance.
End Products of
Box Strapping
Box strapping made with Bajaj masterbatches serves a wide array of industries and end-use packaging scenarios across India and globally.
Carton Bundling Straps
PP strapping for sealing and bundling corrugated cartons in FMCG, pharma & e-commerce
Building Material Straps
Heavy-duty PP strapping for bricks, tiles, steel pipes, and construction materials
Agricultural Bundling
Strapping for bagged fertilisers, seeds, and agricultural produce
Export Pallet Strapping
PP straps for securing palletised goods in container shipments and air cargo
FMCG Retail Packs
Attractive coloured PP straps for multi-pack bundling in consumer goods retail
Automotive Parts Packing
Specialty strapping for bundling auto components, exhaust parts & spare parts
Paper & Print Media Bundles
Lightweight PP strapping used in newspaper printing, magazines & paper mills
Textile & Yarn Packages
Gentle yet firm PP strapping for bundling yarn cones, fabric rolls & fibre bales
Key Benefits of Using
Bajaj Masterbatches
Choosing Bajaj masterbatches for your box strapping line delivers measurable improvements in quality, efficiency, and profitability.
Improved Mechanical Properties
Masterbatch formulations engineered to preserve or enhance tensile strength, elongation, and break resistance even at high let-down ratios.
Vivid, Long-Lasting Colour
Premium organic and inorganic pigments deliver brilliant, fade-resistant colour that meets branding and product-identification standards.
Outstanding UV & Weather Resistance
UV stabiliser masterbatches extend outdoor service life by protecting polymer chains from photodegradation — reducing costly field failures.
Better Processing Efficiency
Lubrication and flow-modification additives improve melt flow, reduce die pressure, and minimise machine downtime in the extrusion line.
Significant Cost Reduction
Filler masterbatches (CaCO₃ based) replace a portion of expensive polymer, directly lowering raw material costs without quality compromise.
High Thermal Stability
Heat-stable formulations prevent discolouration, degradation, and gassing at the high processing temperatures needed for PET strapping lines.
Consistent Batch-to-Batch Quality
Rigorous QC protocols and ISO 9001:2015 certification ensure every lot matches exact colour and performance specifications — minimising rejects.
Regulatory Compliance & Safety
Heavy-metal-free, REACH & RoHS compliant formulations facilitate export approvals and meet the toughest international packaging regulations.
India's Trusted Partner for
Box Strapping Excellence
For over three decades, Bajaj Plast Pvt. Ltd. has been the masterbatch partner of choice for India's leading strapping manufacturers — combining deep polymer science expertise with an unwavering commitment to quality.
Our dedicated R&D team continuously develops new formulations specifically tailored for the unique demands of PP strapping applications.
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30+ Years of Specialised Expertise
Decades of formulation experience in strapping and rigid packaging masterbatches.
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In-House R&D Laboratory
Custom formulations developed and tested in our state-of-the-art research facilities.
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ISO 9001:2015 Certified (TÜV Nord)
Internationally recognised quality management system ensuring consistent output.
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Pan-India Distribution Network
Three manufacturing plants and a wide dealer network ensure reliable, timely supply.
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Technical Support & Application Assistance
Our experts work alongside your team to optimise masterbatch performance on your line.
Years of Excellence
Trusted by India's top polymer processors since the 1990s
Manufacturing Plants
Nagpur · Navi Mumbai · Gwalior · Chennai — pan-India reach
Active Formulations
Covering colour, additive, UV, filler & specialty grades
9001:2015 Certified
Quality systems audited and certified by TÜV Nord India
Masterbatch Solutions for
Box Strapping
Bajaj offers a comprehensive range of masterbatches specifically engineered for PP box strapping applications.
🎨 Colour MB
Colour Masterbatches
Wide palette of vibrant, heat-stable organic & inorganic colours for PP strapping — delivered with superior dispersion and consistent lot-to-lot matching. Custom RAL, Pantone & brand-specific colours available.
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⚗️ Additive MB
Optical Brightner MB
Functional additives including UV stabilisers, antistatics, slip agents, heat stabilisers, optical brighteners, and process aids — enhancing processing efficiency and end-product durability.
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⚗️ Additive MB
Antistatic Masterbatch
Functional additives including UV stabilisers, antistatics, slip agents, heat stabilisers, optical brighteners, and process aids — enhancing processing efficiency and end-product durability.
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⬜ White MB
TiO₂ / White Masterbatches
High TiO₂ loading masterbatches providing excellent opacity, whiteness, and brightening in strapping. Optimised TiO₂ grade selection ensures colour consistency and process stability in orientation.
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🪨 Filler MB
Mineral Filler Masterbatches
CaCO₃ and talc-based filler masterbatches in PP, PE, and HDPE carriers. Reduce raw material cost, improve stiffness, and enhance surface finish of PP strapping tapes without compromising tensile requirements.
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☀️ UV MB
UV Stabiliser Masterbatches
HALS and UV absorber-based masterbatches providing long-term protection against photodegradation — essential for strapping used in outdoor storage yards, construction sites, and export containers.
Learn MoreReady to Elevate Your Strapping Line?
Connect with our experts and request a free sample of Bajaj masterbatches for your application.
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