Closing industrial bags and geo-bags in agro-industrial, logistics, and construction packaging operations with continuous portable closing machine speed without the thread breaking or jamming and stopping the line, while maintaining standard seams that withstand the weight and abrasion of transport, requires 100% industrial polyester thread with calibrated tenacity and lubrication. This portable sewing machine thread—also called industrial sewing thread, bag closing thread, or industrial polyester thread—is manufactured by MOLTEXO from high-tenacity spun polyester, packaged in 150g bobbins, in boxes of 100 bobbins, designed for agricultural (coffee, cocoa, grains), construction (cement, lime, gypsum), and geosynthetics (geo-bags, geotextiles) sectors.

Key benefits

High tenacity calibrated for industrial speed: spun polyester processed to standard gauge withstands the friction and speed of continuous portable bag closers without breaking, minimizing jams and line stoppages that slow down the packaging operation.
Mechanical resistance to content weight: the finished seam withstands product pressure during storage and transport without bursting, a critical condition for heavy bags of cement, grains, or granular products.
Durable composition against the Caribbean environment: 100% industrial-grade polyester, chemically inert to humidity, mold, abrasion, and moderate UV radiation, typical conditions for agricultural storage.
Surface lubrication for smooth sliding: the uniform and knot-free finish facilitates passage through needles, guides, and the machine's sewing mechanism, significantly reducing friction and equipment wear.
Compatibility with standard market bag closers: gauge and twist calibrated to most common electric and manual portable bag closers in Dominican agro-industrial operations, a condition for direct replacement without machine adjustments.

Typical applications and uses

Closing woven polypropylene bags ("nylon" bags) for grains, fertilizers, food, and agricultural products.
Closing multi-layer paper bags: cement, lime, gypsum, flours, and industrial granular products.
Closing jute or burlap bags: coffee, cocoa, and traditional Dominican agricultural products.
Sewing geo-bags (geotextile bags) and geotextile joints in civil engineering works with industrial closers.

Quality and durability

An economical industrial thread fails in two areas: the polyester is of inferior quality with actual tenacity lower than declared (leading to frequent breakages during bag closer operation at nominal speed and repeated line jams) and the surface lubrication is deficient or irregular (leading to high friction with the needle, overheating of the mechanism, and premature machine wear). MOLTEXO works with high-tenacity spun polyester and calibrated lubrication, which distinguishes a professional industrial operation thread from a generic consumable that stops lines and compromises productivity.

Also known as: Technical: industrial sewing thread, industrial polyester thread, spun polyester thread, bag closing thread, 12/4 thread. In DR and Caribbean: hilo para cerradora de sacos, hilo de cosido industrial, hilo para coser costales, hilo de empaque. In other countries: bag closing thread (USA), industrial polyester thread (USA), sack closing thread (USA), hilo poliéster industrial (LATAM), fil polyester industriel (FR), hilo de empaque (LATAM, ES).

Spool length	500 m of thread
Thread material	Polyester (PET)
Color	White
Spool weight	150 g (0.33 lb)
Presentation	Box of 100 spools

Box: Ancho	34 cm (13.39 in)
Box: Alto	44 cm (17.32 in)
Box: Profundidad	35 cm (13.78 in)
Box: Peso	16.5 kg

MOLTEXO® Thread for portable sewing machine

150 g (0.33 lb) / Box of 100 coils

Features

Packaging dimensions

MOLTEXO^® Thread for portable sewing machine