(365)Start a Disposable Apron Making Unit
Disposable aprons are a great way to protect your clothes from messy jobs without the hassle of having to store and wash them afterwards. After all, if you're going to have to wash everything again, why wear an apron in the first place? Instead, use a disposable apron to keep things clean, and just toss it in the trash when you're done.Made of a lightweight but protective polyethylene plastic, each disposable apron comes individually wrapped and ready to use. Just tie it on, and get to work without fear of getting a mess on yourself. Disposable aprons have numerous applications, and are useful for projects ranging from food preparation to arts and crafts.Disposable aprons are a favorite among food service staff, because they let them handle messy dishes without fear of ruining their uniforms that have to be worn each day. Disposable aprons are also water-resistant, so that if something gets splashed on you while you're wearing one, you don't have to walk around with a wet spot all day. It's for this reason too that disposable aprons are great for kids--let the apron catch glue, paint, markers, and other messes instead of their clothes.Whether you use them for business or pleasure, disposable aprons are a quick and easy way to keep messes under control. When you don't have the time to deal with the hassle of cloth aprons (and then sitting down to untangle all the ties), look to plastics. Disposable aprons are an affordable solution to a commonplace problem.
A roll of disposable aprons is formed from an elongated strip of plastic film having a portion along each side which is longitudinally folded over the remaining portion of the strip. The strip contains a plurality of latitudinal perforations at spaced intervals to enable the strip to be readily separated into discrete sheets. Each sheet has a cut-out portion near the top and centered latitudinally in the sheet. Each sheet also has a cut-away portion on each side of the hole portion which begins on the outside edge at the top of the strip, then runs inwardly and downwardly, and then ends on the outside edge of the strip. The cut-out portion defines a neck opening and the two strips of the folded-over portions adjacent and inward of the cut-away portions define two waist tie straps. Disposable plastic aprons are typically manufactured from an elongated strip of plastic film. During the manufacturing process, the strip is repeatedly perforated and cut. The strip is then wound into a roll for shipping. At the point of use, individual sheets (each one constituting an apron) are pulled off the roll at the perforations.
The apron is made of a plastic film having sufficient thickness and tensile strength to resist tearing. A wide variety of plastic film materials are suitable, including monofilms, monofilm/nonwoven laminates, spunbonded and meltblown nonwoven fabrics, and composite olefin fabrics. Plastic monofilms are preferred because of their low cost. Examples of monofilms include polyolefins, such as polyethylene and polypropylene, polyvinyl chloride, vinylidene chloride polymers, rubber hydrochloride, polyesters, and cellulose esters. Polyethylene is the preferred monofilm because of its physical properties and low cost. The plastic film typically has a thickness of about 10 to 250 μm (about 0.5 to 10 mils or thousandths of an inch) and preferably about 25 to 50 μm (about 1 to 2 mils). As the thickness decreases, both the strength of the apron and the costs of material decrease. If the thickness is less than about 10 μm, the apron is so lightweight that it tends to cling to the body rather than drape. As the thickness increases, the costs of material and shipping increase.
Turning now to , the disposable apron is manufactured from a strip 20 of plastic film, most of which is shown tightly wound into a roll 21. A short section at the bottom end of the strip is shown unwound for illustration purposes. Two portions 22 and 23 of the strip along each side are longitudinally folded over upon the remaining, underlying portion 24 of the strip. The two folded-over portions have the same, or about the same, width. The width is generally about 1/10 to 1/4 the total width of the strip. For example, if the total width of the strip is 70 cm, each folded-over portion has a width of about 7 to 18 cm. It will be seen that the waist tie straps of the apron are cut from the folded-over portions. If the width of the folded-over portions is less than about 1/10 of the total, the waist straps are so narrow that they are prone to tearing. If the width is greater than about 1/4 of the total, the folded-over portions extend over the center cut-out portion. In addition, the waist straps are so wide that they are difficult to tie. Excessively-wide waist straps also represent a waste of material. The folded-over portions preferably have a width of about 1/8 to 1/5 the total width of the strip, and most preferably a width of about 1/6 to 1/5 the total width of the strip.
The folded roll of plastic film after it has been cut and perforated to transform it into the roll of disposable aprons of this invention. The roll has latitudinal, i.e., transverse, perforations 30 and 30' at spaced intervals of about 1/2 to 2 m which divide the roll into discrete sheets. The spaced interval of perforations determines the overall length of the sheets and, in turn, the overall length of the individual aprons. The length is a matter of choice, depending on the size of the persons who will wear the apron and the amount of coverage desired. As previously discussed, an apron having a length less than about 1/2 m does not cover the body below the waist and an apron longer than 2 m tends to drag on the floor. The perforations are extensive enough that an individual sheet can be easily pulled manually from the roll, but not so extensive that individual sheets are separated during the winding that follows the perforating. In FIG. 5, the sheet/apron at the bottom of the roll is designated 10. The next sheet on the roll is designated 10', the next sheet 10", and so on.
Each sheet/apron on the roll contains a cut-out hole portion 12 located near the top, generally within about 1 to 8 cm (about 1/2 to 3 in). The cut-out portion is further centered latitudinally in the sheet. The cut-out portion defines the neck opening and is sized to fit over the head of the wearer. The opening generally has a diameter of about 15 to 20 cm (about 6 to 8 in). The shape of the opening is not critical--rounded, oval, or partially curved and partially straight (as shown in FIG. 4) are all suitable.
Each sheet/apron on the roll also contains cut-away portions on each side of the cut-out hole portion. The cut-away portions are of double thickness because they are cut from the folded-over portion of the strip and from the remainder of the strip underlying the folded-over portion. Each cut-away portion begins on the outside edge at the top of the strip, runs inwardly and downwardly, and then ends on the outside edge of the strip. More specifically, each cut-away portion begins at a first point 40 at the top of the sheet on the outside edge of the folded-over portion. The cut-away portion then runs inwardly along the perforation to a second point 41 which is at least about 1 cm (about 1/2 in) from the inside edge of the folded-over portion. It can be seen that the distance between the second point and the inside edge determines the width of the end of the waist tie straps. If the second point were all the way to the inside edge, there would be nothing left to hold the folded-over portion to the folded-over portion of the adjoining sheet. This, in turn, would allow the folded-over portions to become unfolded during winding. If the second point were closer than about 1 cm to the inside edge, the possibility of the remaining connection pulling away at the perforation would be too great. At the other extreme, it is acceptable to locate the second point on the outside edge of the folded-over portion so that the first and second points are the same. This location maximizes the distance connecting the folded-over portions of adjoining sheets, but also tends to make tying the waist straps more difficult due to the width of the strap. It is preferred that the second point is located about 5 to 10 cm (about 2 to 4 in) from the inside edge.
From the second point, the cut-away portion then runs longitudinally down the folded-over portion, i.e., between the inside and outside edges of the folded-over portion, along path 42. It can be seen that the downward distance determine both the length of the waist straps and the location of the waist straps relative to the apron. The downward distance is generally about 40 to 70 cm (about 16 to 28 in) and preferably about 50 to 60 cm (about 20 to 24 in). Expressed in terms of the overall length of the apron, the distance is about 1/4 the length of the apron (when the apron extends to near the feet) to substantially the entire length of the apron (when the apron covers little below the waist). The downward path of the cut-away portion determine the shape of the waist straps and is, to a large extent, a matter of choice. In FIG. 5, the path veers slightly outwardly so that the resulting waist straps taper accordingly. However, other paths are also suitable, including paths that veer inwardly, paths that run parallel to the outside edge, and paths that curve or veer as they move downward. Finally, the cut-away portion runs back to a point 43 on the outside edge of the strip.
The pattern of the cut-out and cut-away portions is responsible for a number of significant benefits. First, the pattern is symmetrical and the resulting even distribution of forces during winding enables the strip to be wound at a high speed without any distortion. Second, the lineal distance of the cut-away portion is exactly one-half of what it would be if the folded-over portion were not present. This reduction in lineal distance reduces the initial cost and maintenance cost of the cutting die. Third, the pattern enables all the waste portions to be removed at the point of manufacture. As previously mentioned, this reduces weight and enables the removed portions to be recycled. And fourth, the pattern also simplifies the donning of the apron. The user simply grasps the sheet near the top where the perforations are located and pulls. Thus, when the sheet is pulled off, the apron is held at the top without any need for the wearer to remove any waste portion or to regrip the apron. Furthermore, after the neck opening is placed over the head, the two folded-over portions unfold automatically as the waist tie straps are taken into the hands and tied.
Their are four methods of manufacturing the roll of disposable aprons of this invention. The first method is to begin with a strip of plastic film produced on site in a film extruder 60. A second method is to begin with an unfolded roll 61 of plastic film. In either case, the film is passed to a folding means 62 to impart the two longitudinal folds. It is a cross-sectional detail of the film prior to folding and is a cross-sectional detail after folding. After folding, the strip is ready for perforating and cutting.
A third method of manufacturing begins with a tube extruder 63 which produces a continuous tube of plastic film. A fourth method is to begin with a roll 64 of plastic film tubing. It is a cross-sectional detail of the tubing. The tubing is first folded into a shape having two triangular indentations, commonly known as gussets, in the gusseting means 65. It is a cross-sectional detail of the gusseted tubing. The tubing is then slit longitudinally along the gusset in the slicing means 66. The result of the slicing is two separate folded strips as shown in cross-sectional .
The next step of the manufacturing process is for the folded strip(s) to be perforated and cut by the perforating and cutting means 67, which is typically a rotary die. The cut-out and cut-away portions are removed from each sheet by conventional means and collected in a reservoir 68. The cut-out and cut-away portions are discarded, saved for future recycling, or immediately recycled back to an extruder. The perforated and cut strip is then typically wound into a roll 69. The strip is sufficiently narrow that existing commercial coreless winders can be used. Eliminating the core reduces cost in several ways--the cost of the core itself is eliminated and the size of the roll is reduced which reduces packaging and shipping costs. Alternatively, the strip can be wound onto a core made of cardboard or the like if desired by the customer or required by the manufacturing equipment. If two strips are perforated and cut simultaneously, they are typically wound onto two separate rolls 70 and 71. If desired, the aprons can be separated at the time of manufacturing and shipped in the form of a stack 72. The separation is accomplished by an additional cutting means 73, by a mechanical or manual separation of the aprons at the perforations, or by simply substituting a complete cut for the latitudinal perforation.
When a laminated apron is desired, the above-described methods are used with the exception that a roll of laminated film is used as the starting material or a second strip of material is superimposed on the first strip of material by suitable means, such as passing the two strips between two rolls which crimp or activate adhesives to bond the two strips together.
The roll of disposable aprons is optionally imprinted with company names, logos, or other indicia. Preprinted roll stock is used or the imprinting is performed at the time of manufacture in a variety of conventional ways, including embossing and printing. When imprinting is performed at the time of manufacture, it is typically performed immediately before the strip is cut and perforated.
Disposable Apron Making Machine
Disposable PE Apron Making Machine
Characteristics And Feature Description:
PE apron making machine is to be used for producing disposable PE apron. Fast speed, low cost. Offers high productivity, stable quality, and easy adjustment.
1. HDPE Film
2. LDPE Film
Require operator: 2 person/machine (one is for feeding, the other one is for packing)
Final products: PE Apron
1. Voltage: AC380V 50Hz
2. Power: 2KW
3. Speed: 50 - 80 PC. /min.
4. Weight: 700kg
5. Outer Size: 3600× 1300× 1700mm