PRODUCTION LINES
Nannini can count on three different production lines, that offer a wide choice of products: the line for the injection glasses, the line for the acetate glasses and the most craftmanship line for the goggles.
ACETATE GLASSES
FEATURES
The cellulose acetate is considered an alive material, 100% mouldable. The experience and dexterity of Nannini staff make it possible to work with this material. With the acetate, extremely ductile, you can get real masterpieces. The processing techniques with this material are many so creativity and skills are fundamental. In Atelier Nannini we are able to range from bondings of colors to millings, from features of different thicknesses to contrast between matt and glossy and many more.
CUT OF THE FRONT
Everything starts from a design, that is technically elaborated by a CNC machine which cuts the front with all its technical features: the location for the lenses, the nosepads and the pantoscopic angle for the best fit.
ACETONE BATH & TUMBLERS
Once the frame is cut, the next process is an acetone bath, that makes the acetate more workable and ready to be put in the tumblers. Tumblers are big barrels of wood, filled with small wedges of beech and birch that, with their round movement, plus abrasive pastes, make the acetate rounder and smoother.
WORKING WITH TEMPLES
The temples follow the same production process: they are cut by CNC, then the metal wire core is inserted and finally they’re tumbled.
After approximately 5 days, fronts and temples finish the tumbling process.
BENDING
The following step for the fronts is the bending, this production passage gives them the required curvature to be confortably worn.
HINGING PROCESS
Before the fronts can be assembled with the temples, it is necessary the hinging process: this particular machine inserts two small metal hinges in the fronts.
POLISHING WITH BRUSHES
The finishing process starts now, through felt wheels which take the residual acetate and permit the perfect pairing between temples and fronts. After this passage, softer cotton wheels, makes the glasses shine.
WASHING & SERIGRAPHY
The glasses are then washed inside ultrasound tanks, to remove all the impurity, dryed with heated air and then brought to the serigraphy department, where they are marked.
LENSES MOUNTING & REGISTRATION
The production process is almost completed. The last passages are the lenses mounting and the registration, where the experience and the dexterity of the team member are crucial.
PACKAGING
Last passages are the final cleaning and packaging.
INJECTION GLASSES
FEATURES
The main features of this production line are: stainless steel molds, the best plastic granule available in the market and high technology presses. All these characteristics allow us to reach the highest quality level of the products and big volumes of production. Grilamid TR90, polycarbonate, metacrylate and rubbers are used to produce all our injected glasses like reading, sport and fashion sunglasses. Lightness, strenght and undeformability are the main features of our injected glasses.
PROTOTYPE & RESEARCH
The first part is the technical drawing, that is transformed in a 3D printed prototype. This step is crucial to understand if all the measurments of the frame are correct and if the fit is good. Afterwards it begins the research of the colors and the selection of material.
MOLD & PRODUCTION
Once the prototype is approved it’s time to implement the tempered steel mold. This step is very important because the mold must respect every characteristic of the frame to achieve the best production quality and efficiency. When the mould is ready, the production can start with the chosen plastics.
FINISHES
When fronts and temples are printed, they are put in vibrators: big containers filled with little ceramic wedges, that with their movement make temples and fronts rounder and smoother. After this production passage all the parts are ready to be painted.
ASSEMBLY AND PACKAGE
The last passages are the assembly of frontal parts and temples, the serigraphy and the lenses mounting. Quality check and packaging are the final steps.
GOGGLES
FEATURES
The goggles are the first product that Nannini started to produce back in the days and for this reason we’re very devoted to it.
A complete range of technical goggles, specially studied for the most exigent bikers. Our motorcycle goggles are built with the best materials and the finest production process: the result is a product totally handmade in Italy, that respects the highest standards of craftmanship.
The goggles have leather on the internal side to guarantee the maximum comfort and eco leather on the external side, to confer weathering resistance and long lasting performance. The perfect fitting is guaranteed by the fork link, specially studied to wear the glasses over the helmet. The nose, in case of impact, is protected by a nondeformable plastic insert, placed underneath the central nose. The adjustable elastic band has a silicone stripe on the inside, that let it adheres perfectly to the helmet.
METAL SHEARING & DRAWING
In this process is crucial to use high performing and workable metal, because they need to be sheared and bended, to be able to give them the shape of the design prepared. One particular machinery, through a template, makes the shape of the goggle.
METAL TUMBLING
Each metal part, once, is put in tumblers, that are big wood barrels filled with little pebbles that, with their movement make every metal part rounder and without imperfection.
GALVANIC BATH
Each metal part can be colored through a galvanic bath in a wide range of colors, glossy or opaque.
PADDING CHOICE & SEWING
The choice among all the materials for the padding around the metal frame is wide. Our choice is usually the leather, filled and hand stiched on the frame.
ASSEMBLY
The metal frame is sewn on the padding, the elastic band is fixed to the metal frame and the lenses are assembled. The last passage is the quality check and the goggle is ready to be worn.