Art laminated glass-Decorative safety glass

It is a kind of laminated glass with a picture, paper, silk, or cloth pressed into the pvb layer by two panes of glasses. So it owns both advanced features: Beaty and security.

Characteristics:
* Rich colors, beautiful patterns;
* A variaty of styles and patterns;
* Special aethentic art and attactiveness can be aroused once be applied

Can bulletproof glass break if it is shot enough times with an AK-47 firing 7.62mm rounds?

Question:
Can bulletproof glass break if it is shot enough times with an AK-47 firing 7.62mm rounds?

Answers:
Nothing is OFFICIALLY called bulletproof. That is a euphemism that the media and those who don't know any better perpetuate. The official term is "bullet-resistant", which more closely describes the true nature of things.
What people normally call bulletproof glass is actually a glass/polycarbonate (a high strength plastic, similar to that used in airplane windows) laminate. When struck, the glass layers do shatter, but they are contained by the polycarbonate, thereby preventing the entire window from shattering and dissipating the energy from the bullet. If enough bullets hit in a compromised area or have more energy than the glass can dissipate, they will punch through. For example, glass rated as resistant to 7.62mm AK-47 rounds will not stop a 50 caliber round.
A bulletproof vest works much the same way, absorbing and dissipating the majority of the bullet's energy, rather than diflecting it.

Screen-Printed Glass

Description:
Screen-printed glass is a special kind of decorative glass made by printing a layer of ceramic ink on the surface of glass through the screen mesh before tempering or heat strengthening processing.

Application: Railing systems,elevator and revolving door enclosures,skylight and overhead glazing,interior partitions.

Advantages:
1.Can do 5 to 6 colour printing according to customer’s requirements;
2.Can be anti-glare effect and shading effect;
3.With much higher mechanical strength and impact resistance than common glass; 4.Anti-acid and moisture,can keep colors for decades.

Max. Size: 6000X3000mm
Colour: Can do all the colours of RAL charts
Thickness: 5-19mm
Standard: Safety glass meets impact performance requirements of BS6206:1981

Bullet-resistant glass

Bullet-resistant or Bullet-proof glass is one kind of laminated glass which is combined with many pieces of glass sheet and PVB film with a total thickness of 20mm to 50mm for effectively preventing bullet from penetrating the glass even the glass has been smashed.

Application: Can be used for banks,museums,jewellery shops,villas,embassies etc.

Max.Size: 2500X6000mm

Thickness: 20-50mm

Advantage: Stable,durable,easy to maintain.

Switchable privacy glass

1,Product features
Switchable privacy glass makes use of international patent technology principle, attaching novel liquid crystal material and high molecular material to foundation material such as glass and thin film material, making out switchable glass by applying circuit and control technology. It can controls the color shade of glass and regulates the sunshine strength into the indoor by controlling the changes of current and voltage, making the room ray soft, comfortable but still transparent. When power turn-off, the glass blur, otherwise, glass turns to transparent, this change takes less than 0.1 seconds. switchable glass is used in door window of building, it can auto-transform light transmittance, and also needs smaller space, saved the utensils and spaces such by normal curtain, and this result in the window glass is as convenient as electronic-control curtain. Moreover, in building decoration industry, our products can also be used in luxurious guesthouse, villa, office building, office, bathroom door window, bath room, kitchen door window, glass panel wall, greenhouse, and so on. Switchable privacy glass has excellent lighting function, visual shadowing function, saving energy, florid decoration effects, has the very more prospects than normal glass or coloring glass.

2,Usage and function of product

1) Usage　　
(1)When privacy glass is used to make door window and various glass partition walls, it can control the color shade of glass and regulates the sunshine strength into the indoor by controlling the changes of current and voltage, making the room ray soft, comfortable but still transparent.　　

(2)When privacy glass is used to make rear projection screen, when the glass is in the transparent state, the projection screen can display background decoration pattern or can act as glass wall of meeting room; When the glass is in the nontransparent state, the projection screen can be a imaging curtain, and it has the advantages of legible image, high luminance gain. Switchable glass can be used for the rear projection screen of projector, record player and laser imaging system.　

(3)When privacy glass is used to make bulletinproof glass and exhibit cabinet glass in Banking, Jewelery, and Exhibition industry, when the glass is in the normal operating mode, the glass is transparent, otherwise, when it subjects to pillage or stop operating, the glass can be made nontransparent by various ways, such as remote control, thus the criminal is forced to lose intimidate object that personal and property safety can be protected to the greatest extent.　　

(4)When privacy glass is used for shower room in high level guesthouse, company and household, the user can freely make the glass transparent or nontransparent as his(her) needs, thus the user can protect personal privacy and get more joy of living.

2) Function　　
(1)It can be switched freely between on and off, when power turn-on, the glass is transparent, otherwise, it is nontransparent.　　

(2)It can responsive to the changes of the external temperature and light ray or responsive to the operation of voltage regulating button to adjust its own color shade and infrared transmittance automatically, achieve the effects of adjusting temperature and adjusting light. It has the advantages of highly resisting ultraviolet ray, environmental protection and health care.　　

(3)Convenient control method, reducing the trivial details of amounting the curtain and the troubles of ordinary clean up in the future.　　

(4)Double layer doubling technology, safe and firm, has the fine quality of the safety glass, and soundproof, heat shielding, has high anti-noise ability.　　

(5)Control method diversify: switch, light control, sound control, temperature control, remote control, remote network control, and so on, the control method can also be customized as your needs.

Principle and structure of smart glass

Principle and structure of product　

As shown in figures, the principle of product is as follows:　


(1)When smart glass is turned off, the high molecular liquid crystal material in glass presents disorder arrangement, light can not pass through the glass, the glass appears cream white nontransparent state.　　

(2)When smart glass is turned on, due to the effect of the electric field, the high molecular liquid crystal material in glass presents ordered arrangement, light can pass through the glass, the glass appears transparent state.


Product schematic diagram



Product structure

Considerations and Guidelines for Glass Floring Applications

Glass has been used as a flooring product for more than 100 years. Often found in historic buildings, it was typically a molten cast product of varying thicknesses. Today, glass flooring and stair treads, usually installed by glazing contractors, are in high demand. Since glass can be utilized safely in flooring applications, it is being specified at an amazing pace. It can now be found in restaurants, galleries, libraries, corporate offices, retail businesses and private residences around the world.
The use of glass flooring has accelerated for a number of reasons. One reason is because it provides daylighting. Daylighting occurs when natural light filters into areas that would have to be lit typically with artificial light. Glass flooring allows natural light to brighten the area without the need for artificial light.
Another reason for choosing glass flooring is the dramatic ambiance it can provide. Many designs call for fully-exposed, monolithically polished glass edges and structural support systems that appear to allow the glass to float in place. This provides a level of elegance that cannot be found in other flooring products.

The Elements
Glass flooring is made of mutli-layer, laminated panels, and no two glass flooring projects are alike. The number of glass lites per panel and overall thickness varies from project to project; there is no such thing as a standard make-up or thickness that will work in every situation. Structural support is also important when working with glass flooring because it dictates the final glass make-up.
The top layer of glass flooring should include an anti-slip surface. Many anti-slip design options are available, including sandblasted, acid-etched, cast, ceramic frit and silk-screened glass.

Play it Safe
Whatever top surface effect used, surfaces need to be tested properly for slip resistance. Many in the construction industry recognize Underwriters Laboratories (UL) as a trusted source for product compliance. UL 410 is the standard for slip resistance of floor surface materials.
A monolithically polished edge on stair treads is a highly requested treatment. With such an edge, a fully laminated panel, rather than individual lites, is polished prior to laminating. Monolithically polished edges provide a high level of quality and allow for a less blunt edge on the glass treads so there is less opportunity for breakage.
Manufacturers currently offer fully annealed glass panels, fully tempered panels or a combination of annealed and tempered in their flooring solutions. The use of fully annealed panels in flooring applications could result in serious safety concerns for patrons. For example, in the event of a panel failure, a fully annealed panel is likely to have a consistent break pattern between all annealed lites and, in turn, not hold a person’s weight. In other words, an individual could fall through the glass and/or sustain serious injuries. A fully tempered laminated panel, however, has been proven in testing to be strong and safe.

Privacy, Please
Many public locations require a privacy-type glass to ensure an individual’s modesty. Other projects require a totally transparent glass so that video or artwork can be seen below while walking on top of the glass. The top, anti-slip layer of glass or the bottom layer of glass provides these options, which can be a cast panel of glass, acid-etched layer or a sandblasted, clear tempered panel.
Adding color is yet another option for glass flooring. This can be achieved through solid colored glass, colored laminated interlayers or via painting. With manufactured colored glass, color is an inherent part of the glass. This type works well with a fully exposed edge and when a solid, consistent color is desired for the entire panel. Interlayers can be used to tint the glass panel to the desired color when exposed edges are not involved. With painted glass, numerous custom effects/designs can be achieved, and the number of colors available is unlimited.

Safety Assured
As the popularity of glass flooring has grown, some manufacturers have begun to offer glass-flooring products that are not tested or engineered properly. Using such products could pose potential liability issues. Along with a UL-tested and approved top surface, the glass and the structural support system for the project should be engineered properly. A tested product, a manufacturer employing a structural glass engineer (different than a regular structural engineer) and with glass flooring experience can make the entire process smooth and safe for everyone.

Toughened safety glass fences

Swimming Pool Fencing is required by law to be 1200mm high, and to have no footholds to enable climbing.The panels are toughened safety glass.

To achieve maximum safety, with minimum obstruction of view, consider a barrier of 12mm toughened glass.

laminated glass partitions

In order to preserve the available space and light, this translucent and very light partition is made of Coloured laminated glass , which with two 4mm thick glass + 0.76mm translucent white PVB

Toughened glass shower doors

For optimal use of space and light, this shower in a bathroom under the eaves is made from toughened glass for a frameless glazed solution.

Laminated tempered glass flooring

This is a decorative and usefull glass floor : daylight goes through the floor into the room below. Glass flooring made with tempered heat soaked and laminated glass :

2 tempered and heat soaked 15mm thick glass + 1 tempered heat soaked 6 mm glass with flat polished edges , laminated with translucent white and clear PVB interlayers.

Switchable privacy glass features

Principle
How is this possible? The secret of the transformation between clear and translucent is found in the Liquid Crystal Sheet within the laminated glass panel. The randomly aligned Liquid Crystal molecules are such that it disperses light. However, when voltage is applied, these same molecules arrange themselves in a specific direction in such a way as to permit parallel light to pass through the glass.


Features
1,Response time
The response time from translucent to clear is approx.1/1000 sec. and from clear to translucent can be achieved in approx.1/100 sec.

2,Liquid Crystal Sheet Size
With continuous research and development efforts of our leading and well-respected supplier, Liquid Crystal sheets are now available in a size up to 47''x 118'' or 1200 x 3000mm making expanded applications possible in many fields.

3,Low power consumption
The electrical power required to operate the switchable light control is only .32W/sq ft. (3.5W/sq meter) and no special maintenance is also required. Thus, the tremendous benefits of the material are realized at a very inexpensive operating cost.

4,Laminated glass and plastics composition provides an added safety and durability feature
A key advantage of AJJ Smart Glass is our expertise in laminating both common and advanced materials especially electrified films. Our key head of production has a decade of experience in laminating electrified films making our company a pioneer in the field. Our lamination configuration and processes can be designed to meet your application needs, from simple compositions to bullet and hurricane resistant designs. Our proprietary processing and material selection yields a high quality product with excellent optical properties unique to the industry.

5,Sensor capabilities and possibilities
As the laminated panels are operated with electrical signals, the possibilities are endless. As long as response signals can be converted to electrical signals, it is possible to incorporate sensor technology within the panels, expanding the application possibilities.

Why use laminated glass?-Explore these "Top 10" benefits

Why use laminated glass?
Explore these "Top 10" benefits:

In home construction or in other building projects, the benefits of using laminated glass include:

• Safety
• Security
• Sound Reduction
• Solar Energy Control
• UV Control
• Weather/Natural Disasters
• Durability
• Design Versatility
• Installation Ease
• Low Visible Distortion

Safety
Ordinary window glass is brittle, breaking into long sharp pieces which can cause serious and sometimes fatal injuries. The principal feature of laminated safety glass is its performance under
impact. We interlayers absorb the energy of the impact, resisting penetration. Although the
glass may break, the glass fragments remain firmly bonded to the interlayer, minimizing the risk of injuries. Little wonder that laminated glass is mandatory for automotive windshields in almost every industrialized country in the world and increasingly specified or required in architectural glazing.

In glass skylights, sunspaces, sloped glazing installations and curtainwalls, there is always the possibility of glass breakage. Without laminated glass, that could mean a big safety problem caused by falling glass. Unlike all types of monolithic glass, laminated glass remains intact when broken, protecting people from injury. This is why many building codes worldwide require laminated glass
for overhead glazing.

Security
Burglars often break windows to get to door and window handles, and laminated glass can resist their intrusion. Even if it is accidentally broken, the interlayer continues to safeguard the building until the glass is replaced. Reglazing can be done when convenient, rather than during expensive after-hours.

Laminated glass can be designed to withstand bullets and bomb blasts by using multiple or thick layers of glass and interlayer. In prisons, laminated security glass can replace traditional bars to create a more humane environment.

The rise in urban crime and terrorism has created a need for glazing materials that enable people to carry on normally and be protected from harm. Laminated glass made up of several glass sheets
and interlayers can provide protection in medium to high security applications. For extra security,
including uparmoring of vehicles, AJJ Glass offers DuPont SentryGlas® Plus interlayers with 100 times the stiffness and 5 times the toughness of traditional interlayers.

Sound reduction
Noise, just like a burglar, gains easiest entry to homes and buildings through windows. Laminated glass has proven to be an excellent barrier to noise, having a higher sound reduction index than
monolithic glass of equal thickness between the frequencies of 125Hz and 4,000Hz. This sound
dampening is due to the "viscoelastic" properties of the interlayer material. The coincidence effect experienced with monolithic glass at certain frequencies is also considerably reduced with laminated glass, and the noise reduction performance of IG units can be greatly improved by incorporating at least one layer of laminated glass.

Tailored for noise control applications, DuPont™ SentryGlas® Acoustic™ sound reduction interlayers
are available.

Solar energy control
While natural light plays an important role in architectural design, too much sunlight can also mean too much heat. Tinted laminated glass can reduce heat gain from sunlight to lower air conditioning costs, and it can also control glare.

Laminated glass also can be used to combine reflective coated glass or low-E glass with heat- absorbing glass tints. In warm climates, these combine the penetration resistance and sound reducing qualities of laminated glass with good shading and energy management. In laminated
glass containing coated glass, the metallic coating faces toward the inside of the laminate, where it
is protected from harmful dirt or contact.

UV control
The major cause of deterioration and fading of furnishings and pictures is the chemical reaction caused by short-wavelength UV radiation. UV-absorbing additives in the interlayer in laminated glass can screen out almost all these damaging rays.

Protection from weather and natural disasters
If broken, laminated glass remains in its frame, preventing interior damage, while reduced flying glass protects people both indoors and outdoors.

In developed areas subject to heavy winds and rains such as hurricanes or cyclones, buildings often need extra protection. Flying debris carried by these winds can shatter the glass of windows and doors, injuring people and opening buildings to often devastating further damage. Laminated glass constructions can be properly designed to remain intact under impact and keep the envelope of the home or building sealed.

Glass fallout in earthquakes exposes people to dangerous broken shards. Again, laminated glass has been shown to keep the glass intact and in its frame.

Durability
Laminated glass is durable, maintaining its color and strength, and is as easily cleaned as ordinary glass.

Design versatility
Laminated glazings can be manufactured flat or curved, and include annealed, toughened, heat- strengthened, spandrel, wired, patterned, tinted and reflective glasses. DuPont glass laminating interlayers can be used to add color tints or increase the opacity of the glazing, for further design aesthetics or privacy needs.

For even more design freedom, DuPont™ SentryGlas® Expressions™ offers decorative interlayers in
a range of transparencies. High-resolution digital printing adds custom color effects, words, patterns
or images - anything you imagine - to the interlayer prior to lamination. Located inside the glass, your design is beyond the reach of stains, fingerprints, abrasions or harsh cleaning chemicals. The result is a durable, easy-to-maintain, "signature" or branded environment with the full safety performance of conventional laminated glass.

Installation ease
Laminated glass is simple to install. Standard-sized, two-ply glass panels can be cut to size on-site, and can also be drilled or notched.

Low visual distortion
Laminated building glass is usually glazed in an annealed form, avoiding the distortion caused by
"roller waves" in tempered and heat-strengthened glass. Sharp reflected images are possible with curtainwalls constructed of laminated annealed glass.