Stain Remover Powder

Oxygen-based stain removers are reactive powders that must stay bone-dry to keep their punch. The active chemistry starts losing strength as soon as it meets ambient moisture, so the hopper, the dosing chamber and the film path all have to be treated as a dry environment. The powder is also non-free-flowing: it bridges over the hopper outlet, rat-holes above the dosing screw, clings to metal and will not level itself in a chamber. It is dusty, and that dust is chemically aggressive — fines that reach the sealing jaws spoil the seal, and fines that reach the room reach the operator. Dry-environment filling, chemically resistant films and dust-controlled dosing preserve activity and protect operators. That behaviour decides the filling method. Volumetric cup and gravity systems assume a powder that flows and settles by itself; this one does neither, so dose weight drifts. Auger filling is the right answer for a stain remover powder filling machine: a servo-driven screw meters a set number of turns while an agitator keeps the hopper bed broken up and feeding into the screw flights. The auger tube delivers the charge low and close to the forming tube, which limits dust around the seal, and product contact parts are specified against the chemistry. Three formats cover most of the demand. A stain remover powder stick pack machine makes narrow single-treatment sticks: one stick is one wash, the user measures nothing, and the rest of the pack stays sealed and dry. Single-treatment sachets dose exactly one wash — convenience and chemistry in one format — and the sachet is also the format for retail sampling, hotel supply and export shipments where a rigid box costs too much freight. VFFS pillow bags cover household refill and professional laundry sizes, where the customer wants a bulk weight instead of a portion. Dosing runs from 1 g up to 100 kg, so one product family covers a single-wash stick and a bulk bag. Output reads simply here: these are VFFS machines with a single forming tube, so the cycle rate is the bag rate — there is no lane multiplication — and the line runs at up to 65 bags per minute, typically 40 to 65. Where you sit in that band depends on dose weight, bag width and length, film behaviour and how much air the powder carries; a freshly transferred, aerated powder needs settling time that a compacted one does not. Four Mentpack machines run this product: VB-PLUS, VB, VB-MINI and VB-Q. The choice follows dose size, bag format and the output the plant needs. Typical buyers are detergent and home-care manufacturers, private-label contract packers, laundry chemical producers and suppliers to industrial and hotel laundries — plants that need a stain remover powder sachet packaging machine for portioned retail packs and a larger bag format on the same floor.