A drinking straw includes a generally elongate tube having a sidewall defining an internal bore, wherein one end of the straw is provided with a piercing projection formed from a portion of the sidewall and reinforced by a folded portion of the sidewall. The straw is manufactured from an elongate tube on which a piercing projection is formed at one end by folding a portion of the sidewall at that end to reinforce the projection.

Paper products can be made from cellulose derived from corn husks. A method of making paper products may include obtaining corn husks, extracting cellulose fiber pulp from the corn husks, forming a paper sheet from the extracted cellulose fiber pulp, adding a chitosan acetic acid solution having a concentration of at least 5 wt. % chitosan to the paper sheet, forming the paper product from the paper sheet, and coating the paper product with a paraffin wax.

Bio-degradable food handling devices and systems and methods for making the devices. The embodiments herein relate to a bio-degradable food handling device (10, 20, 30, 40, 50 and 60) for use as at least one of a drinking straw, a stirrer, a chopstick, a balloon stick and a candy stick. Further, embodiments herein relate to systems (100) and methods (200, 300) of making the bio-degradable food handling devices (10, 20, 30, 40, 50 and 60). The bio-degradable food handling device (10) is hydrophobic and antifungal thereby increasing shelf life of bio-degradable food handling devices (10). The bio-degradable food handling device (10) is durable, hygienic, non-toxic and recyclable. The bio-degradable food handling device (10) has smooth and soft outer portion that provides comfort to user. The bio-degradable food handling device (10) can be used to draw pieces of fruit, vegetables, solid processed food pieces and other pieces of foods therethrough.

Paper products can be made from cellulose derived from corn husks. A method of making paper products may include obtaining corn husks, extracting cellulose fiber pulp from the corn husks, forming a paper sheet from the extracted cellulose fiber pulp, adding a chitosan acetic acid solution having a concentration of at least 5 wt. % chitosan to the paper sheet, forming the paper product from the paper sheet, and coating the paper product with a paraffin wax.

A straw forming machine includes a feeding device, a pressing device, a sticking device, a conveyor device, and a cutting device. The paper material is stretched from the feeding device to the pressing device which curls the paper material. When the paper material is delivered to the sticking device, the two sides of the paper material are pressed by the sticking device to form the paper pipe, and the press roll of the sticking device rolls and sticks the two abutting portions of the paper pipe. Then, the paper pipe is delivered by the conveyor device to the cutting device which cuts the paper pipe to form drinking straws.

A foldable drinking straw made of paper developing along a longitudinal axis, and having a flexible shaped portion configured to allow a folding, one over the other, of two adjacent portions of the straw. The flexible shaped portion is defined by a plurality of depressions, disposed in succession along the longitudinal axis, and each made on a limited circumferential portion of the circular section of the straw.

The present invention relates to a method for manufacturing a paper straw, the method comprising: a paper roll transmission step, a paper strip heating step, a bonding and shaping step and a cutting step. Wherein, a plurality of raw paper rolls face a connection position jointly to transmit a raw paper strip, the raw paper strip includes a paper material and a dry hot-melt adhesive. The dry hot-melt adhesive of the raw paper rolls is heated for changing into flow hot-melt adhesive. Then the raw paper rolls is transmitted to the connection position for rolling jointly, and the flow hot-melt adhesives are bounded on another raw paper strip to form a pipe. Finally, the pipe is cut to form at least one paper straw after the pipe exceeds a setting length. The present invention uses dry adhesive to manufacture paper straw, without the excessive glue problem and mold phenomenon of the traditional wet bonding method as well as without an extra dry fixing step of traditional manufacture process, so the productivity will be raised significantly, and the defect rate will be reduced.

A food-safe paper straw, including an outer tubular element made of paper material which extends along a longitudinal axis and a longitudinal insert made of paper material positioned inside the outer tubular element and stably connected to an inner surface of the outer tubular element, said insert having a profile, in transversal cross section, defined by a line at least partly corrugated and/or partly broken in such a way as to increase the bending strength of the straw, wherein said insert is stably connected to the inner surface of the outer tubular element in at least two connecting zones, preferably at least three connecting zones, angularly spaced from each other about said longitudinal axis.

Machine (10) comprising a feed unit (16) configured to feed a plurality of tubular elements, preferably made of paper, toward different working units (18, 19, 20, 21) configured to automatically carry out different workings on the tubular elements (12), including a deformation to make a bellows (13), a cut to make a pointed end (14), or an end cut obliquely, a bending in correspondence with the bellows and a packaging of each straw, the deformation being carried out before the cut.

Machine (10) to produce straws (11), preferably made of paper, comprising a feed unit (16) configured to feed a plurality of tubular elements, preferably made of paper, to different working units (17, 19, 20, 21) configured to automatically carry out different workings on the tubular elements (12), including at least one cut to make a pointed end (13), or an end cut obliquely, a deformation to make a bellows (14), a bend in correspondence with the bellows (14) and the packaging of each straw (11).