foil alcohol

Ref Price:
Loading Port:
China Main Port
Payment Terms:
TT OR LC
Min Order Qty:
-
Supply Capability:
-

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

Product Description:

Aluminium foil acts as a total barrier to light and oxygen (which cause fats to oxidise or become rancid), odours and flavours, moistness, and germs, it is used broadly in food and pharmaceutical packaging. The purpose of aluminium is to make long-life packs (aseptic processing|aseptic packaging) for drinks and dairy goods, which allows storing without refrigeration. Aluminium foil containers and trays are used to bake pies and to pack takeaway meals, ready snacks and long life pet foods.

Aluminium foil is widely sold into the consumer market, often in rolls of 500 mm (20 in) width and several metres in length.It is used for wrapping food in order to preserve it, for example, when storing leftover food in a refrigerator (where it serves the additional purpose of preventing odour exchange), when taking sandwiches on a journey, or when selling some kinds of take-away or fast food. Tex-Mex restaurants in the United States, for example, typically provide take-away burritos wrapped in aluminium foil.

Aluminium foils thicker than 25 μm (1 mil) are impermeable to oxygen and water. Foils thinner than this become slightly permeable due to minute pinholes caused by the production process.

Aluminium foil has a shiny side and a matte side. The shiny side is produced when the aluminium is rolled during the final pass. It is difficult to produce rollers with a gap fine enough to cope with the foil gauge, therefore, for the final pass, two sheets are rolled at the same time, doubling the thickness of the gauge at entry to the rollers. When the sheets are later separated, the inside surface is dull, and the outside surface is shiny. This difference in the finish has led to the perception that favouring a side has an effect when cooking. While many believe that the different properties keep heat out when wrapped with the shiny finish facing out, and keep heat in with the shiny finish facing inwards, the actual difference is imperceptible without instrumentation.The reflectivity of bright aluminium foil is 88% while dull embossed foil is about 80%.

Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:Aluminum foil and foil
The foil is a kind of handicraft products in the early years of Shaoxing special. In ancient times, its main purpose is to make money offerings to worship ghosts. There are many other uses, such as sealing. The foil ancient shape is rectangular or square, thin sheet, folding and deformation. The foil color is silver white, yellow ash after burning. It is mainly composed of tin and aluminum, and is an alloy of tin and aluminum.
Q:Overview of aluminum foil
Q:What is performance advantages of carbon-coated aluminum foil?
4. Protect collector, extend battery life. Such as: • prevent collector electrode corrosion, oxidation; • improve current collecting electrode surface tension and enhance the current collecting electrode coating performance and easy; • higher-cost alternative to replace the original etched foil or foil with standard thinner foil.
Q:Why aluminum foil should be used in capacitor material of distributors?
The normal metal capacitor, especially CBB21/,DV/, impulse current of its turn-off voltage is very high. The capacitor material of distributors, if the distributors of ignitor can't bear such high impulse current. Using CBB28 or CBB8,in which the capacitor can bear a higher impulse current.The ratio of DT is higher.
Q:What's the difference between an anode pouch and an aluminum foil bag?
Both sides of the aluminum foil bag are made of aluminum foil composite film, which is opaque; the Yin and Yang bag is an aluminum foil composite film, and the other side is a transparent composite film,
Q:How does the fireproof performance of alunimun foil?
Generally fireproof of the aluminum foil is not good.
Q:Who knows the price of 3m conductive aluminum foil tape?
Q:Copper (II) Sulfate and Aluminum?
Aluminum is less reactive compared to copper. Check out the reactivity series
Q:How do you insulate a paper cup with aluminum foil?
First wrap the bubble wrap around the cup, then cover it with aluminum foil. Explanation: You have to mechanisms of heat transfer - heat conduction from liquid the through the wall to the outer surface of the cup - heat transfer to the surrounding by convection and radiation at the surface of the wall. Since material choice does hardly affect convective heat transfer don't bother with this aspect. The radiative heat transfer mainly depends on the emissivity/absorptivity of the material. From the offered materials aluminum foil has the lowest emissivity. If i remember right ε = 0.04 for a polished aluminum and ε = 0.1 oxidized aluminum surfaces .However the emissivity of the aluminum foil is much lower than the emissivity of the other materials. Unfortunately aluminum has a pretty high heat conductivity. So we need another material for insulation between the foil and the cup. The best for this is IMHO the bubble wrap. The reason is not the heat conductivity of the plastic of the bubble wrap. By wrapping it around the cup you add layer of air between the cup and the aluminum foil. And the heat conductivity of air is lower than the heat conductivity of all solids.
Q:How to remove the oxide layer in the aluminum foil with a chemical process?
Generally, we adopt the method of alkali corrosion to remove the oxide layer on the surface of the aluminum foil.The purpose of alkali corrosion is removing the oxide layer on the surface of the aluminum foil. (Note: Technological process of the method is as follows: under normal temperature, 20% nitric acid; the process parameters is about 0.5 minutes. Pre-degrease--degrease--rinsing--rinsing--alkali corrosion--rinsing--rinsing--bright dipping--rinsing--rinsing--pure rinsing. The purpose of bright dipping is to remove surface residual black ash after alkali corrosion.Temperature:50-60 degrees; time:0.5-1 minutes.The purpose of degreasing is to remove grease on the surface of the aluminum foil.The process parameters is 0.5-1 minutes. You can use acid to wash it.

1. Manufacturer Overview

Location
Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range