CN102189884A - Imitation ball leather decorative film - Google Patents

Abstract

The invention relates to an imitation ball leather decorative film which comprises a substrate (2), a surface film (3) and a granular bulge (4), wherein the granular bulge (4) protrudes out of the surface of the substrate and is coated by the surface film; and a corona processing layer (1) is arranged on the back of the substrate (2). According to the invention, in application of flame retarding, a flame retardant is added into the surface film so as to improve the flame retarding effect and reduce the cost; by adopting the foaming and foam absorption process, the protruding shape of the foaming coated by the surface film can be manually controlled so as to improve the three-dimensional appearance; and moreover, as the foaming is protected by the surface film inside and outside the substrate, the reinforcing indexes of wear resistance, rub resistance, pressure resistance and the like of the imitation ball leather decorative film are guaranteed.

Description

Imitative ball leather decorating film

(1) technical field

The present invention relates to a kind of imitative ball leather decorating film.The metal surface decorative materials technology.

(2) background technology

Before the present invention made, imitative in the past ball leather decorating film had following deficiency:

1, also there is not the surface to protrude the very strong product of the three-dimensional sight of band rounded grain shape.

2, can not be foamed into project grain shape base material film owing to also add azodicarbonamide foaming agent on the market in the rolled base material.

3, adopt the hard concave-convex surface shape that extrudes of concavo-convex dandy roll to water on the market, more stiff, and lack three-dimensional the sight.

4, also the suction of employing bubble technology on the market in the polymeric membrane manufacturing procedure.

5, former flame retardant type polymeric membrane all is to add fire retardant in base material, causes consumption many, the cost height.

(3) summary of the invention

The objective of the invention is to overcome above-mentioned deficiency, a kind of have surface imperfection and the three-dimensional sight of rubber-like project grain shape are provided, make all extraordinary imitative ball leather decorating film of high-molecular decorative film inherent quality and appearance.

The object of the present invention is achieved like this: a kind of imitative ball leather decorating film, described decorating film is by substrate, facial mask and protrusion and described substrate surface and protruding composition of rounded grain shape of being wrapped in by facial mask, and described substrate back is provided with corona processing layer.Its preparation method comprises following technical process:

Step 1, calendering substrate

A) batching

Adopt the polyvinyl chloride resin of 90 weight portions and the PP mix particles of 10 weight portions to become the macromolecule material, add dioctyl ester and Celogen Az by proportioning again, described macromolecule material and dioctyl ester and Celogen Az weight portion proportioning are:

100 parts in macromolecule material

15～25 parts of dioctyl esters

1 part of Celogen Az.

B) stir

Material by proportioning weighs up adds mixer with PVC and PP particle earlier, adds dioctyl ester after 3 minutes, adds Celogen Az after 7 minutes, stirs 5 minutes again, heats during stirring to 110 ℃～120 ℃.

C) plasticizing

The compound that fully stirs is entered banbury be heated to 170 ℃-180 ℃, rotating speed with per minute 110～120 plastifies while overturning, this process is 15 minutes, entering mill then turns refining, the temperature that turns refining adds to 175 ℃-190 ℃, two rollers evenly turned refining 5-15 minute with 35-45 rev/min of speed, made the material plasticizing.

D) refining is filtered

The material of plasticizing is delivered into extruder, and extruder is controlled temperature at 180-195 ℃, and screw speed 75-90 rev/min, push the stirring refining, push then to the filtration of die orifice screen pack, screen pack 120 orders.

E) calendering

Be extruded into the plasticizing and the grog of impurity elimination fully of strip, be conveyed into five roll calendars, roll into the base material of all size according to a thickness and a width of cloth, the calender line temperature is controlled at 180 ℃-190 ℃, rotating speed 35-40 rev/min.

F) sided corona treatment

For making substrate backside strengthen fastness with any applying thing from now on, and reach dizzy the processing by the static shock film.Electrostatic pressure 120V, speed is synchronous with calendering.

G) cooling

The base material that rolls also needs through five roller cooling cylinder rolling after cooling standby after sided corona treatment.

Step 2, preparation facial mask

A) batching

Select for use nontoxic level polyvinyl chloride resin to add dioctyl ester, titanium dioxide, fire-retardant N H1197 and mill base, the weight portion proportioning of each component is:

100 parts of polyvinyl chloride resins

20～25 parts of dioctyl esters

3～7 parts of titanium dioxides

1 part of fire-retardant N H1197

1 part of mill base

B) stir

Material by proportioning weighs up adds mixer with polyvinyl chloride resin earlier, and then adds titanium dioxide, add dioctyl ester again through stirring in 3 minutes, add fire-retardant N H1197 and mill base again, stirred through 5 minutes again through stirring in 7 minutes, warm during this time to 115 ℃～125 ℃, mixing speed 140-150 rev/min.

C) plasticizing

The material that fully stirs is added banbury be heated to 175 ℃-185 ℃, rotating speed with per minute 105-125 plastifies in upset, through adding the two roller mills plasticizing that turns refining after the preliminary plasticizing in 15 minutes again, 35-45 rev/min of two roller mill rotating speed, temperature was controlled at 180 ℃-195 ℃, made material reach plasticizing through 5-15 minute.

D) refining is filtered

The material that has plastified is delivered into extruder, and temperature is controlled at 180-195 ℃ in the extruder barrel, and 75-90 rev/min of extruder screw rotating speed pushes the stirring refining, pushes to die orifice filtration, screen pack 200 orders through screw rod then.

E) calendering

Be extruded into columned fully the plasticizing grog, be conveyed into five roll calendars, according to facial mask specification requirement calendering the into facial masks such as thickness, width, five roll calendar roller temperatures are controlled at 185 ℃-195 ℃, speed be controlled at 80-90 rice/minute.

F) cooling

Facial mask rolling behind five roller cooling cylinder cooling and shapings of moulding is standby.

Step 3, applying

With rolled base material and facial mask totally two layers through the make-up machine pressurizing attaching of heating, heating roller temperature is controlled at 160 ℃-170 ℃, 0.25 kilogram of pressure, speed be controlled at 80-90 rice/minute.

Step 4, foaming

The film that has fit together is heated to 195 ℃-205 ℃ through baking oven, makes the blowing agent in the base material produce bubble because of being subjected to high temperature to produce chemical reaction suddenly, impels in the base material to go out air bubble-shaped to evagination, and is wrapped in by facial mask.

Step 5, suction bubble

To enter foam adsorption apparatus through the film of foaming, utilize the outer suction effect of foam adsorption apparatus negative pressure, impel the requirement up to specification of foaming evagination.

Step 6, cooling and shaping

After foam adsorption apparatus absorption, reach and protrude the three-dimensional shaping membrane that requires, rolling behind jacket water (J.W.) chill roll cooling and shaping.

The invention has the beneficial effects as follows:

The present invention adopts in fire-retardant application facet and add fire retardant in facial mask, has also reduced cost and improved flame retardant effect; After employing foaming, the suction bubble technology, make the foaming under the facial mask parcel can artificially grasp its protrusion shape and improve three-dimensional sight; In addition because foaming has facial mask protection inside and outside base material, wear-resisting, the anti-wiping of imitative ball leather decorating film, the index of strengthening such as withstand voltage have been guaranteed.

(4) description of drawings

Fig. 1 is the section structure schematic diagram of the imitative ball leather of the present invention decorating film.

Reference numeral among the figure: corona processing layer 1, substrate 2, facial mask 3, graininess projection 4.

(5) specific embodiment

The imitative ball leather decorating film that the present invention relates to, described decorating film is made up of with described substrate surface and by the graininess protruding 3 that facial mask is wrapped in substrate 1, facial mask 2 and protrusion, and described substrate 2 back sides are provided with corona processing layer 1.

Claims (1)

1. imitative ball leather decorating film it is characterized in that described decorating film forms by substrate (2), facial mask (3) and protrusion and described substrate surface and by the graininess projection (4) that facial mask is wrapped in, and described substrate (2) back side is provided with corona processing layer (1).

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