Sacchi a valvola

Valve sacks

"Tailor made" composition based on customer specifications. Air removal systems suitable for the requirements of all types of filling machines. Wide range of valves, from 1 to 4 layers. Inside double bottom for maximum seal when bagging fine powdered products. Handle. Easy Open system for bottom.

Up to 11 water-based colours with standard painting or UV lacquering
Anti-slip treatments over the printing

Sacks with internal and external sealing valves
Standard Sonisack® with heat sealable valve
SonicSack® with heat sealable valve and spot pasted under the sleeve
Sacks with polyethylene film inserted between the layers of paper


Width: from 20 to 70 cm
Length: from 29 to 120 cm
Bottom width: from 7.5 cm to 22 cm

"Tailor made" composition based on customer specifications
From 1 to 4 layers of paper or plastic, including laminates

Features and optionals
Straight or cut with flap (end stepped)
Heat sealable valves, see SonicSack®
Inside flap for maximum seal when bagging powder products

Raw materials

Raw materials in compliance with all European current regulations for food contact packaging.
All the best types of Scandinavian paper, white, brown, standard, semi-extensible, high porosity, high performance, anti-slip, glazed, machine glazed, single-coated, single-coated greaseproof
Sandwich paper (paper + PE + paper)
Polythene-coated paper (paper + PE)
Low Density Polyethylene (LDPE), tubing or internal layer
High Density Polyethylene (HDPE), tubing or internal layer

© 2022 Sacchettificio Nazionale G. Corazza s.p.a.

Codice fiscale 00210180287 - Partita iva IT00210180287 - Ufficio del Registro delle Imprese di Padova Numero REA: PD-59679 - Capitale sociale interamente versato euro 5.000.000,00