FIELD: packing equipment, particularly means for closing mouth of polyethylene bag with milk during content consumption by user in air-tight manner.
SUBSTANCE: clamp is formed as integral member with two arms connected one to another by weakened fold line and having grooved interaction surfaces. Arms perform movement one relative another. One arm faces another one so that groove of this arm encloses convexity of groove made in another arm. Each arm groove has trapezoidal shape with 5° angle of side inclination. Clamp has locking member formed as extension of one arm end part connected with working arm part by weakened fold line.
EFFECT: possibility of complete bag air-tightness, simplified production and decreased cost.
8 cl, 10 dwg
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