Cellophane Tape Day
The development of the first masking tape in the early 1920s showed just how gifted Dick Drew was in devising practical solutions to customer needs.
But Drew was not one to rest on his laurels – or to neglect the ever-changing concerns of 3M customers. Naturally, then, Drew went straight to work when he learned that a St. Paul insulation firm needed 3M's help in devising a waterproof covering for the insulation batts that it was designing for railroad refrigerator cars.
While Drew was pursuing his research, he spoke with a fellow 3M researcher who was considering packaging 3M masking tape rolls in cellophane, a new moisture-proof wrap created by DuPont. Why, Drew wondered, couldn't cellophane be coated with adhesive and used as a sealing tape for the insulation batts?
In June 1929, Drew ordered 100 yards of cellophane with which to conduct experiments. He soon devised a tape product sample that he showed to the St. Paul insulation firm. Unfortunately, the sample didn't adequately solve that particular customer's problem. But the sample definitely showed promise as an aid to packaging other types of products.
Drew kept working. It took over a year for him to solve the many problems posed by his materials. Cellophane could indeed work as a backing for pressure-sensitive tape. But it was difficult to apply adhesive evenly upon it. Also, cellophane split easily in the process of machine coating. But for each such challenge, Drew found an answer. He discovered that if a primer coat was applied to cellophane, the adhesive would coat evenly. As for splitting, special machinery solved that problem. Finally, Drew developed virtually colorless adhesives to improve the aesthetics of the tape.
On Sept. 8, 1930, the first roll of Scotch™ Cellophane Tape was sent to a prospective customer. That customer wrote back with the following sound advice for 3M: "You should have no hesitancy in equipping yourself to put this product on the market economically. There will be a sufficient volume of sales to justify the expenditure."
The customer's word proved to be a considerable understatement. Scotch cellophane tapes went on to become one of the most famous and widely used products in 3M history. Commercial enterprises used it for packaging. Farmers found it handy for patching cracked turkey eggs. Homeowners used it to repair toys and torn book pages. New uses continue to be discovered – and product sales continue to grow – up to the present day.
National Grape Popsicle Day
What causes “purple tongue”, as everyone calls it, in children during summer days? The answer is grape Popsicle. Children love it and grape flavored Popsicle is the most sold Popsicle. May 27th is celebrated as National Grape Popsicle day.
It is not clear how the national grape popsicle day originated but grape Popsicle was invented accidently in the year 1905 by an 11 year old boy, Frank Epperson when he left a mixture of soda outside with a stick and it froze overnight. He patented the popsicles after 18 years and now we have popsicles in different flavors and varieties.
How can you celebrate the national grapes Popsicle day without eating grape Popsicle? So eat lots of grape popsicles. You can also celebrate the day by making grapes popsicles at home or can take your kids for a visit to popsicle factory. You can make variety of grapes popsicles by adding jelly, fruits and other ingredients to it.
The national grape popsicle day is not just for kids but adults can also relish the grape popsicles and walk their childhood memory lane. Adults can also mix grape flavored vodka to popsicles to make it special.
Sun Screen Day is celebrated on May 27th of each year.
Sunscreen (also commonly known as sunblock, sun tan lotion, sun screen, sunburn cream, sun cream or block out) is a lotion, spray, gel or other topical product that absorbs or reflects some of the sun’s ultraviolet (UV) radiation on the skin exposed to sunlight and thus helps protect against sunburn. Skin-lightening products have sunscreen to protect lightened skin because light skin is more susceptible to sun damage than darker skin. A number of sunscreens have tanning powder to help the skin to darken or tan; however, tanning powder does not provide protection from UV rays.
Sunscreens contain one or more of the following ingredients:
- Organic chemical compounds that absorb ultraviolet light.
- Inorganic particulates that reflect, scatter, and absorb UV light (such as titanium dioxide, zinc oxide, or a combination of both).
- Organic particulates that mostly absorb light like organic chemical compounds, but contain multiple chromophores, may reflect and scatter a fraction of light like inorganic particulates, and behave differently in formulations than organic chemical compounds. An example is Tinosorb M. Since the UV-attenuating efficacy depends strongly on particle size, the material is micronised to particle sizes below 200 nm. The mode of action of this photostable filter system is governed to about 90% by absorption and 10% by scattering of UV light.
Depending on the mode of action sunscreens can be classified into physical sunscreens (i.e., those that reflect the sunlight) or chemical sunscreens (i.e., those that absorb the UV light). Although sunscreen is sometimes called “suntan lotion”, the latter is different in that it is used to intensify UV rays whereas the former is used to block UV rays.
Medical organizations such as the American Cancer Society recommend the use of sunscreen because it aids in the prevention of developing squamous cell carcinomas and basal-cell carcinomas. Many sunscreens do not block UVA radiation, which does not cause sunburn but can increase the rate of melanoma, another kind of skin cancer, and photodermatitis, so people using sunscreens may be exposed to high UVA levels without realizing it. The use of broad-spectrum (UVA/UVB) sunscreens can address this concern.