they dont, you do when you squeeze it.
2006-10-27 08:24:50
·
answer #1
·
answered by ? 4
·
0⤊
0⤋
The stripes don't appear in the toothpaste until just before it comes out of the nozzle. There are actually two areas to the inside of the toothpaste tube. One holds the white paste, and the other, smaller area (near the front of the tube) holds the coloured paste that gives the stripes. As the white toothpaste is forced from the tube, it passes through a tube that has four small holes in it. These holes let the coloured paste in, and it comes out stripy.
How can you use this principle at home?
You can use this to make stripy icing for the top of cakes or biscuits. To do this you need to make a special type of icing bag.
You will need:
* A plastic freezer bag,
* A piece of drinking straw about 6cm long,
* Some sticky tape,
* A pair of scissors,
* Icing sugar,
* Food colouring.
* A digestive biscuit (or 2 - to practice on!).
1. You need to first make the icing bag. Take the straw and snip two small holes in the side (opposite each other), about a third of the way along, with the scissors.
2. Snip the corner from the freezer bag and slide the straw through the hole. Make sure that the part of the straw with the two holes is just inside the bag. Wrap tape around the corner to hold the straw in place.
3. Mix a small amount of water into the icing sugar to make icing. Be very careful not to add too much water - you can always add a little bit more. The icing should be a similar consistency to toothpaste.
4. Take a third of the icing and add a small amount of food colouring to it. Watch out as a little will go along way! When it is fully mixed in, put the coloured icing into the corner of the icing bag. Push it deep into the corner. Spoon the white icing in, behind the coloured stuff.
5. Squeeze! As the paste comes out, there should be a coloured stripe in it. You can use this to ice cakes, or just digestive biscuits! You can eat it immediately, or put it in the fridge so the icing sets.
2006-10-27 08:36:58
·
answer #2
·
answered by Anonymous
·
0⤊
0⤋
inside all the tubes there is white paste. but just at the near the tip there is a special part which contains a the colour which is very gently released on to the toothpaste which is being squeezed. This produces the stripes. the tube is calibrated to squeeze the exact amount so that almost both the aspects last long enough, how ever the colour always runs out first, if you have noticed
2006-10-27 08:29:28
·
answer #3
·
answered by Anonymous
·
1⤊
0⤋
Striping of toothpaste is solely for the purpose of an interesting appearance; it provides no functional benefit to the consumer.
Striped toothpaste can be produced by including two different colored toothpastes in an unusual type of packaging. The collapsible tube has two tanks, one filled with each color paste (see figure). Squeezing the tube pushes the two pastes out the opening. The tube nozzle layers the pastes to produce a striped pattern.
To keep the cost of packaging to a minimum, it is now common for tubes to be filled with striped paste (e.g. Aquafresh). As the tube is squeezed, the stripes flow parallel to each other and do not mix. The patterned paste that gets dipensed is simply a narrower version of what is in the tube. Filling is done using a multi-nozzle filling head that dispenses a different colored stripe in each direction. To keep the stripes parallel to the axis of the tube, the head starts at the bottom and retracts as it fills, staying just above the level of the paste. Tubes with two compartments are generally reserved for toothpastes containing two formulas intended to react together and therefore kept isolated until dispensed (e.g. Colgate Simply White).
2006-10-27 08:18:22
·
answer #4
·
answered by mmela989 2
·
1⤊
0⤋
online Encyclopedia :- Striping of toothpaste is in basic terms for the objective of offering an determination visual allure; it delivers no useful income to the shopper. Striped toothpaste could be produced via alongside with 2 different coloured toothpastes in an unusual form of packaging. The collapsible tube has 2 tanks, one full of each and every color paste. Squeezing the tube pushes the two pastes out the hollow. The tube nozzle layers the pastes to supply a striped development. to maintain the fee of packaging to a minimum, it extremely is now easy for tubes to be full of striped paste (e.g. Aquafresh). because of the fact the tube is squeezed, the stripes flow parallel to a minimum of one yet another and don't blend. The patterned paste that gets dipensed is in simple terms a narrower version of what's interior the tube. Filling is performed using a multi-nozzle filling head that dispenses a different coloured stripe in each and every direction. to maintain the stripes parallel to the axis of the tube, the top starts on the backside and retracts because it fills, staying in simple terms above the point of the paste. Tubes with 2 cubicles are frequently reserved for toothpastes containing 2 formula meant to react mutually and hence saved remoted until eventually disbursed (e.g. Colgate in simple terms White).
2016-12-16 15:27:44
·
answer #5
·
answered by Anonymous
·
0⤊
0⤋
Watch CBeebies. Aunty Mabel has a trip to a toothpaste manufacturer and answers your very question.
The programme is called 'Come Outside'. Very informative (for two year olds!!)
I had often wondered how it was done - but now I know - it's a machine.
2006-10-27 19:27:19
·
answer #6
·
answered by Phlodgeybodge 5
·
0⤊
0⤋
Good question! I sometimes wonder the same thing myself...
I guess the different colors are divided from each other inside the tube by thin plastic.
There's no other way...
2006-10-27 08:21:42
·
answer #7
·
answered by yellahfellah 3
·
1⤊
0⤋
they put the toothpaste into the tube like that, when it comes out, it looks just how they put it into the tube.
2006-10-27 08:22:29
·
answer #8
·
answered by musclecarlover 1
·
0⤊
0⤋
well... thats a great question, my friend and i were wondering the same exact thing... next question: which came first the chicken or the egg. haha. well it's all done by machine in a factory.
2006-10-27 08:25:59
·
answer #9
·
answered by chelsea 2
·
0⤊
0⤋
It's called Photoshop.
2006-10-27 08:17:42
·
answer #10
·
answered by Anonymous
·
0⤊
0⤋
I think they have a machine that mix them to a certain point.
2006-10-27 08:18:54
·
answer #11
·
answered by Anonymous
·
0⤊
0⤋