Reinforced thin wall plastic bag, and method and apparatus to ma

Details Reinforced thin wall plastic bag, and method and apparatus to ma Reinforced thin wall plastic bag, and method and apparatus to ma

1976-02-17

1978-02-28

Cannon, J.C.

Special receptacle or package

For roll or reel

Concatenated articles

206407, 206554, 206629, 206819, 206824, 264177, 264 95, 425465, 428 43, 428167, 428182, 428906, B32B 108, B32B 330, B65D 6528, B65D 8570

Patent

active

040761215

ABSTRACT:
A plastic bag such as trash can liners, grass and leaf bags, sandwich bags and the like is reinforced by placing spaced ribs therein, integral with the wall structure, the ribs having a rib-to-rib spacing in the order of 1/8 to 2 cm, the ribs being peaked and merging smoothly from a projecting peak to the thickness of the walls between the ribs, the peaks extending about 1.5 to 10 times the wall thickness of the film which is preferably, in the order of about 0.4 to 2.0 mils. Upon extrusion, the extrusion die is formed with small notches with rounded corners so that the ribs are extruded while the film material is extruded, and provide additional material in the region of the ribs which merges smoothly with the material being extruded to form the film. Such rib-reinforced bag structures may be produced by forming a continuous roll of such bags, the individual bags in such a roll being readily separated along predetermined lines of weakness.

REFERENCES:
patent: 2582294 (1952-01-01), Stober
patent: 2750631 (1956-06-01), Johnson
patent: 3201506 (1965-08-01), Bills
patent: 3466212 (1969-09-01), Clayton et al.
patent: 3608815 (1971-09-01), Bunch
patent: 3684642 (1972-08-01), Rogers
patent: 3707431 (1972-12-01), Whitfield
patent: 3984047 (1976-10-01), Clayton et al.
patent: 4015635 (1977-04-01), Goransson

Affiliated with

Also associated with

Rating

Reinforced thin wall plastic bag, and method and apparatus to ma does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reinforced thin wall plastic bag, and method and apparatus to ma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reinforced thin wall plastic bag, and method and apparatus to ma will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1670729