MS 304 Quiz 2 odevi

40) Toilet Paper

1/12/2008 ·


Toilet Paper mostly made by recycled paper. All recycled paper goes into a giant tank with an agitator.  Paper and warm water mixed about ten minutes, by doing so they take out plastics, wires, any kind none paper material. Now it is time for ink, to remove the ink leftovers they inject air to the mixture, where ink particles rise above attached to the air bubbles. Then series of rollers squeeze out the water. With the help of squeezing process, mixture can absorb some chemicals to bleach it. Revolving knives chop of the mix. After the bleaching they go to hot dryer then in very short time they become delicate paper. Each scroll has 47 miles of paper. They also add some pattern by roll over a machine which has embarked mould. It is not just for esthetics but also makes paper more absorbent. Meanwhile, thin strips of cardboards are rolled and glued to take a continuous tube shape. Then the paper is winded onto the cardboard tubes, creating rolls of toilet papers. When it rolled enough at a stable thickness, a blade automatically cuts the paper. End of the rolls are automatically glued to prevent unravel. Then long rolls divided into 4 inches wide regular toilet paper. They packaged with a transparent plastic with the help of a machine.

39) Chewing Gum

1/12/2008 ·


Gum Base which makes the chewing possible is made synthetically from plastics and rubbers. Gum base, color and flavor are mixed in a container. After some glucose syrup which keeps gum soft and powder sweeteners, are added to the mix, blending takes place for about 20 minutes, with the help of heat everything in the mixture blend together. Then mixture squeezed out of thin holes of a machine to get thin manageable strips than big bulky mixture. Extruders squeeze each strip into actual weight of a piece of bubble gum. They come out one long continuous strip. The next process is cooling, where the rubber like gum stays for 15 min. Now it is ready for cut and wrap. In this machine, the continuous stream of cooled gum is cut in little pieces and pushed into a wrapper. Both ends of the wrapper are closed by the machine which is so fast that 900 gums can be wrapped within a minute. At the next and the last step, specific amounts of gums are placed into large boxes and then these boxes are sealed with air tight plastic that keeps the gums fresh.

38) Bandages

1/12/2008 ·


ETF is a fabric is elastic only in one direction. Glue is applied on one side of a fabric.  Fabric is cut depending on the requested size. Cushion fabric comes in big rolls and with the blades it cut down to smaller strips. Roll of bandaging components is unrolled at that point but with the help of a machine, it cut and wrapped. It uses unprinted wrapping paper which protects the product. Packaging speed depends on the size, ranges 300 to 1500. Machine press holes on the bandages to make them easily separated. Then strips of the product placed in boxes. If it is going to be a smaller bandage then the production also differs. The cushion fabric strip is placed at the center of the ETF fabric. Plastic cover material is glued to the ends of the bandages. With the help of a machine, bandage put between two wrapping papers. It makes 300 bandages in a minute. Certain types of bandages have a process of punching holes for allowing the air circulation. Before packaging the final part of the manufacturing of bandages is the sterilization process. They can produce up to 4 billion bandages of 65 models in a year.

37) Erasers

1/12/2008 ·


A lot of ingredients are used to make rubber but the most important one is synthetic rubber, but also vulcanized vegetable oil is the most crucial one for the erasing feature. Rubber put between massive roller wheels and rolls for several times. Later on former defective erasers added to the same process. Then sulfur, accelerator and coloring chemicals added, they blend them 5 to 10 min. Then vulcanized vegetable oil, regular vegetable oil and calcium carbonates added too. Then when density seems right to operators they take them out and rest at room temperature for a half day. When it is ready they cut out large squares weighted on the rage of 5 to 8 kg depending on the order. They go to steamy heated press at 163°C for 20 min, pressure compacts the rubber, while the heat hardens it. They put them in water to stop the process. They cut long badges of rubber. Blue one can erase the ink. They pair them up according to that. Then they put them to steamy press together. After 20 min workers trim off the traces and remove the excess and put them into cold water. Then machine cuts the rubbers into little pieces. Apart from last steps just pink rubbers chopped into little pieces and go to a large container, worker put some talk to prevent them to stick each other. They make the container spin 3 to 5 hours; it also rounds of their edges. At the last step a machine print on them the name and logo.

36) Zippers

1/12/2008 ·


Cotton or some other type of fabric is used as a base tape. A long continuous roll of tape goes in the vertical teeth machine. Machine cuts of little pieces of wire forces it through and which becomes tooth shaped and clamps it on the edge of once side of the tape. It all done too fast that it takes 45 teeth for second. Then they come to joining machine. Now we have a continuous zip. Then in the cleaning machine; firstly zip washes after drying the zipper machine applies a coat of hot wax which lubricates the teeth. Later on, another machine removes 4 cm section of the teeth at regular intervals which later help to cut the zippers. End of the zip can be closed and opened type in both type they added different kind of stopper at the bottom end. Next machine installs the slider. At the end it cuts from the wire free places and they are separated from the line. Plastic zippers use the same tape but instead of wire they use wire zipper shaped molded plastic. It shortly cools and separated by a machine into two, excess part re-melted and used again.

« Önceki ::