CN102771966B - Watch strap and manufacturing method thereof - Google Patents

Abstract

The present invention discloses a watch band made of silicone and a manufacturing method thereof. The text pattern ink layer printed on at least one surface of the watch band is durable and wear-resistant and not easy to fall off. The watch band includes a base band and a composite layer composed of at least one unit composite layer. Each unit composite layer is composed of a film and a text pattern ink layer printed on the inner surface of the film. The text pattern ink layer is stacked between the surface of the base band and the inner surface of the film, and the composite layer is bonded or infiltrated on the surface of the base band by liquid vulcanization or solid vulcanization molding. The watch band of the present invention is soft and has good toughness. The text pattern ink layer is stacked between the film and the silicone base band. Under the action of high temperature, the text pattern ink layer, the film and the base band are tightly combined. When printing the text pattern on the film, the present invention adopts large-scale printing, which not only reduces costs but also saves time.

Description

Watch strap and manufacturing method thereof

technical field

The invention relates to watch accessories, in particular to a silicone watch strap with a durable and wear-resistant character pattern printed on the surface and a method for manufacturing the watch strap.

Background technique

In the prior art, the text and pattern ink layer on the watch strap is printed on the outer surface of the watch strap by silk screen printing or water transfer printing, and then sprays a layer of ink on the text and pattern ink layer. A thin layer of coating (hereinafter referred to as protective layer) protects the ink layer printed on the watch strap from coming off, but because the protective layer, the ink layer and the watch strap are not tightly combined, In the process of wearing a watch, because the watch strap will often rub against the cuffs or clothes, the protective layer on the outer surface of the watch strap is easily damaged, thus causing the ink layer of the text and pattern printed on the outer surface of the watch strap to fall off, thereby It makes the watch strap look obsolete, which greatly affects the use value and market share of the watch strap product. In addition, the printing of the text and pattern on the watch strap in the prior art is to print one by one on the watch strap that has been made. After the ink is dry, apply the protective layer one by one. This method is not only time-consuming, laborious, and expensive, but also the dried text and pattern ink has a small bonding force with the surface of the watch strap and is easy to fall off.

Contents of the invention

The technical problem to be solved by the present invention is to provide a watch strap made of silica gel material, the ink layer of the printed characters and patterns on at least one surface of the watch strap is durable and not easy to fall off, and a method for manufacturing the watch strap.

The technical scheme adopted in the present invention is:

The watch band of the present invention comprises a base band, a film layer composed of a character pattern and an outer protective layer and attached to the surface of the base band. Layer, each unit composite layer is made of the described outer protective layer made of film and the described text pattern printed on the inner surface of the film made of text pattern ink layer, the composite layer is made of text pattern ink The layers are placed between the inner surface of the film and the surface of the base tape, and are bonded or penetrated on the surface of the base tape through a liquid vulcanization molding method or a solid vulcanization molding method using a hot pressing process;

The text pattern ink layer is composed of a text pattern layer and an adhesive layer, and the adhesive layer is a hot melt film or coating;

The hot-melt film or coating is TPU hot-melt film or coating, EVA hot-melt film or coating, OPP hot-melt film or coating, PA hot-melt film or coating.

The composite layer is provided on both inner and outer surfaces of the base belt.

The composite layer has two unit composite layers.

The film is made of resin or silica gel.

The method for manufacturing the wristband of the present invention is as follows: firstly print the text and pattern ink on the inner surface of the prepared film to form a unit composite layer with the text and pattern ink layer; then the unit composite layer or a plurality of such The unit composite layer is a composite layer formed by sequentially stacking the text and pattern ink layer of the previous unit composite layer and the film of the next unit composite layer, and the text and pattern ink layer is stacked between the surface of the base tape and the inner surface of the film In a way, the unit composite layer or the composite layer and the surface of the base tape are closely combined by a hot pressing process;

The text pattern ink layer is composed of a text pattern layer and an adhesive layer, and the adhesive layer is a hot melt film or coating;

The hot-melt film or coating is TPU hot-melt film or coating, EVA hot-melt film or coating, OPP hot-melt film or coating, PA hot-melt film or coating.

The first method of combining the base tape with the unit composite layer or the composite layer of the present invention has the following steps:

In the first step, the unit composite layer or the composite layer is placed in the mold cavity of the strap mould, the unit composite layer or the film in the composite layer is close to the bottom wall of the mold cavity, and the text pattern ink layer faces the reserved space in the mold cavity;

In the second step, the two-component silica gel sol liquid is injected into the mold cavity of the mold;

In the third step, the temperature of the mold is raised to 90-180°C, and the vulcanization time is 0.4-2 minutes, so that the liquid silica gel is converted into a solid base tape and bonded to the unit composite layer or the composite layer;

The fourth step is to open the mold and take out the finished wristband composed of the base band and the unit composite layer or the composite layer.

The mold temperature in the first method of the present invention is preferably 140°C.

The second method of combining the baseband with the unit composite layer or the composite layer of the present invention has the following steps:

In the first step, the unit composite layer or the composite layer is placed in the mold cavity of the strap mould, the unit composite layer or the film in the composite layer is close to the bottom wall of the mold cavity, and the text pattern ink layer faces the reserved space in the mold cavity;

In the second step, the mixed solid silica gel is placed in the mold cavity, and the mold is closed;

In the third step, the temperature of the mold is raised to 120-200° C., and kept for 0.8-3 minutes, so that the silica gel is vulcanized into a base tape and bonded to the composite layer 5;

The fourth step is to open the mold and take out the finished wristband composed of the base band and the unit composite layer or the composite layer.

The mold temperature described in the second method is preferably 170°C.

The third method of combining the baseband with the unit composite layer or the composite layer of the present invention has the following steps:

In the first step, the unit composite layer or the composite layer is placed in the mold cavity of the strap mould, the unit composite layer or the film in the composite layer is close to the bottom wall of the mold cavity, and the text pattern ink layer faces the reserved space in the mold cavity;

In the second step, one side of the prepared base tape is placed in the mold cavity close to the unit composite layer or the composite layer;

The third step is to put another unit composite layer or the composite layer close to the other side of the base tape into the mold cavity, and close the mold;

The fourth step is to raise the temperature of the mold to 90-200°C and keep it for 1-30 seconds to bond the unit composite layer or the composite layer to the base tape;

The fifth step is to open the mold and take out the finished wristband composed of the base band and the unit composite layer or the composite layer.

Compared with the prior art, the present invention uses a liquid vulcanization molding method or a solid vulcanization molding method to closely combine a composite layer composed of a text pattern ink layer and a film of a certain thickness with a base band made of silica gel material, and the watch manufactured The tape is soft and has good toughness, wherein, the text pattern ink layer is stacked between the film and the silica gel base band, and under the action of high temperature, the text pattern ink layer, the film and the base band are closely combined, so that the printed on the watch of the present invention The characters and patterns on the belt are durable and not easy to fall off, and the characters and patterns can keep the original luster and color for a long time under the protection of the film. When the composite layer of the present invention is composed of multiple unit composite layers, The text pattern layer on it is more durable and has a longer service life. The present invention adopts large-scale printing when printing characters and patterns on the film, which not only reduces the cost, but also saves time.

Description of drawings

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Figure 1 is a schematic diagram of the present invention.

Fig. 2 is an enlarged cross-sectional view of A-A in Fig. 1 .

FIG. 3 is an enlarged partial cross-sectional view of the text and pattern ink layer in FIG. 2 .

Detailed ways

As shown in Figures 1 and 2, the watch band of the present invention is composed of a watch base band 1 and a composite layer 5 printed with text and patterns.

The base belt 1 is made of silica gel material, and the silica gel is liquid silica gel, liquid silicone rubber, vinyl silicone rubber, low phenyl silicone rubber or fluorosilicone silicone rubber.

The composite layer 5 is composed of at least one unit composite layer 4, and each unit composite layer 4 is composed of a character pattern ink layer 3 and a film 2 with a certain thickness.

The character pattern ink layer 3 is composed of a character pattern layer 6 and/or an adhesive layer 7 .

The character pattern layer 6 is made by ink printing or coating.

The adhesive layer 7 can be a hot melt film or coating, a thermal vulcanization adhesive coating or a thermal vulcanization catalyst coating. Its function is to bond the resin film or silica gel film, text pattern layer 6 and silica gel base tape 1 together during liquid or solid vulcanization.

The content of the text pattern layer 6 is determined according to customer needs, usually, it is at least one of the name of the watch strap manufacturer, the model, specification, trademark or artistic pattern, etc. that represent business information or show the artistic beauty of the watch strap appearance. .

Said adhesive layer 7 is both used for bonding or infiltrating the text pattern layer 6 and the film 2 mutually (through hot pressing method) to form the unit composite layer 4, and is also used for bonding or infiltrating a plurality of unit composite layers 4 ( hot pressing method) to form the composite layer 5, which is also used to closely bond or infiltrate the unit composite layer 4 or the composite layer 5 and the surface of the base tape 1 (by hot vulcanization or hot pressing method).

The hot melt film or coating, heat vulcanization adhesive coating or heat vulcanization catalyst coating used in the adhesive layer 7 are respectively:

The hot melt film or coating used is TPU hot melt film or coating, EVA hot melt film or coating, OPP hot melt film or coating, PA hot melt film or coating;

The thermal vulcanization adhesive layer used is formed by mixing hot melt colloid or resin colloid with platinum catalyst;

The thermal vulcanization catalyst layer used is also made of hot melt colloid or resin colloid mixed with platinum catalyst;

The film 2 is a transparent film made of resin or silica gel material, which has a certain thickness of 0.03-1.0 microns, and the resin used is TPU (English full name: Thermoplastic polyurethanes, Chinese name: thermoplastic polyurethane elastomer plastic), PET (Chinese name; polyethylene terephthalate is a high polymer, English name: polyethyleneterephthalate), PVC (Chinese name: polyvinyl chloride English name: Polyvinylchloride), PE (English name: Polyethylene, Chinese name: polyethylene), etc.

Each unit composite layer 4 is made by the following method: use silk screen printing, offset printing or digital printing to print the text and pattern ink on the prepared whole film, then cover the adhesive layer 7, and then cut it A unit composite layer 4 in the shape of a watch strap.

Described composite layer 5 is that a plurality of described unit composite layers 4 are stacked sequentially through heat in the order that the character pattern ink layer 3 of the last unit composite layer 4 is connected to the film 2 of the adjacent next unit composite layer 4. Pressed.

The composite layer 5 in the present invention can be one unit composite layer 4 or multiple unit composite layers 4 , preferably two unit composite layers 4 .

The composite layer 5 is bonded or infiltrated on the surface of the base tape 1 through liquid vulcanization molding or solid vulcanization molding in such a way that the text and pattern ink layer 3 is stacked between the inner surface of the film 2 and the surface of the base tape 1 .

The composite layer 5 of the wristband of the invention is arranged on the inner and/or outer surface of said base band 1 .

Since the present invention is produced by liquid vulcanization molding method or solid vulcanization molding method, after high temperature vulcanization, the composite layer 5 is firmly bonded and even partly penetrates into the surface layer of the silica gel base tape 1, and the text pattern ink layer 3, the film 2 and the base tape 1 are closely combined to ensure the persistence of the text and pattern ink layer 3 on the surface of the silicone base band 1, and the watch band is soft and tough, and the text and pattern on the watch band are durable and not easy to fall off.

One of the manufacturing methods of the watch strap of the present invention consists of the following steps:

In the first step, use silk screen printing, offset printing or digital printing to print the text and pattern ink on the prepared whole film, then cover the above-mentioned adhesive layer 7, and then cut it into a strap-shaped unit composite layer 4;

In the second step, the unit composite layer 4 is placed in the mold cavity of the strap mould, the film 2 of the unit composite layer 4 is close to the bottom wall of the mold cavity, and the text pattern ink layer 3 faces the reserved space in the mold cavity;

Or by a plurality of said unit composite layers 4, press the character pattern ink layer 3 of the last unit composite layer 4 and the film 2 of the adjacent next unit composite layer 4 to be stacked successively through the composite layer 5 formed by hot pressing , placed in the mold cavity of the strap mold, the outermost film 2 in the composite layer 5 is close to the bottom wall of the mold cavity, and the innermost text pattern ink layer 3 faces the reserved space in the mold cavity;

In the third step, a two-component silica gel (commonly known as AB silica gel) sol liquid is injected into the mold cavity of the mould;

In the third step, the temperature of the mold is raised to 90-180°C, preferably 140°C, and the vulcanization time is 0.4-2 minutes, so that the liquid silica gel can be vulcanized and converted into a solid base tape and compounded with the adhesive layer 7 Layer 5 is tightly bonded together;

The fourth step is to open the mold and take out the finished wristband composed of the base band 1 and the unit composite layer 4 or composite layer 5 .

The second manufacturing method of the watch strap of the present invention consists of the following steps:

The first step is to print the text and pattern ink on the prepared whole film by silk screen printing, offset printing or digital printing, then cover the adhesive layer 7, and then cut it into a watchband-shaped unit composite layer 4;

In the second step, the unit composite layer 4 is placed in the mold cavity of the strap mould, the film 2 of the unit composite layer 4 is close to the bottom wall of the mold cavity, and the text pattern ink layer 3 faces the reserved space in the mold cavity;

Or by a plurality of said unit composite layers 4, press the character pattern ink layer 3 of the last unit composite layer 4 and the film 2 of the adjacent next unit composite layer 4 to be stacked successively through the composite layer 5 formed by hot pressing , placed in the mold cavity of the strap mold, the outermost film 2 in the composite layer 5 is close to the bottom wall of the mold cavity, and the innermost text pattern ink layer 3 faces the reserved space in the mold cavity;

The third step is to place the mixed solid silica gel in the mold cavity and close the mold;

The fourth step is to raise the temperature of the mold to 120-200°C, preferably 170°C, and keep it for 0.8-3 minutes, so that the silica gel can be vulcanized into a base tape and tightly bonded to the composite layer 5 through the adhesive layer 7 stick together;

The fourth step is to open the mold and take out the finished wristband composed of the base band 1 and the unit composite layer 4 or composite layer 5 .

The third manufacturing method of watch band of the present invention consists of the following steps:

The first step is to print the text and pattern ink on the prepared whole film by silk screen printing, offset printing or digital printing, then cover the adhesive layer 7, and then cut it into a watchband-shaped unit composite layer 4;

In the second step, the unit composite layer 4 is placed in the mold cavity of the strap mould, the film 2 of the unit composite layer 4 is close to the bottom wall of the mold cavity, and the text pattern ink layer 3 faces the reserved space in the mold cavity;

Or by a plurality of said unit composite layers 4, press the character pattern ink layer 3 of the last unit composite layer 4 and the film 2 of the adjacent next unit composite layer 4 to be stacked successively through the composite layer 5 formed by hot pressing , placed in the mold cavity of the strap mold, the outermost film 2 in the composite layer 5 is close to the bottom wall of the mold cavity, and the innermost text pattern ink layer 3 faces the reserved space in the mold cavity;

In the third step, one side of the prepared silica gel base tape is placed in the mold cavity close to the unit composite layer 4 or the composite layer 5;

The fourth step is to put another prepared unit composite layer 4 or composite layer 5 into the mold cavity close to the other side of the base tape, and close the mold;

The fourth step is to raise the temperature of the mold to 90-200°C, preferably 180°C, and keep it for 1-30 seconds, so that the silicone base tape passes through the adhesive layer 7 and the composite layers on both sides. 5 tightly bonded together;

The fifth step is to open the mold and take out the finished wristband composed of the base band 1 and the unit composite layer 4 or composite layer 5 .

Claims (10)

1. a watchband, comprise base band (1), the rete sticking on base band surface be made up of character pattern and outer protective layer, it is characterized in that: described base band (1) for silica gel made, described rete is the composite bed (5) be made up of at least one unit composite bed (4), the described outer protective layer that each unit composite bed (4) makes by film (2) and be printed on the described character pattern that this film (2) inner face is made by character pattern ink layer (3) and form, described composite bed (5) is stacked and placed on the mode between described film (2) inner face and base band (1) surface with character pattern ink layer (3), employing heat pressing process is through liquid sulfidization molding method or solid-state sulfidization molding method is bonding or permeate on the surface of base band (1),

Described character pattern ink layer (3) is combined by word graph pattern layer (6) and adhesive phase (7), and described adhesive phase (7) is thermosol glued membrane or coating;

Described thermosol glued membrane or coating are TPU thermosol glued membrane or coating, EVA thermosol glued membrane or coating, OPP thermosol glued membrane or coating, PA thermosol glued membrane or coating.

2. watchband according to claim 1, is characterized in that: on inside and outside two surfaces of described base band (1), be equipped with described composite bed (5).

3. watchband according to claim 1, is characterized in that: described composite bed (5) has two unit composite beds (4).

4. the watchband according to any one of claim 1-3, is characterized in that: described film (2) for resin or silica gel made.

5. a method for the watchband described in manufacturing claims 1, is characterized in that: the inner surface first character pattern ink being printed on the film (2) prepared is formed the unit composite bed (4) with character pattern ink layer (3); To connect with the film (2) of next unit composite bed (4) the order stacked composite bed (5) formed successively by this unit composite bed (4) or by this unit composite bed (4) multiple by the character pattern ink layer (3) of a upper unit composite bed (4) again, be stacked and placed on the mode between described base band (1) surface and film (2) inner surface with character pattern ink layer (3), adopt heat pressing process described unit composite bed (4) or composite bed (5) to be combined with base band (1) intimate surface;

Described character pattern ink layer (3) is combined by word graph pattern layer (6) and adhesive phase (7), and described adhesive phase (7) is thermosol glued membrane or coating;

Described thermosol glued membrane or coating are TPU thermosol glued membrane or coating, EVA thermosol glued membrane or coating, OPP thermosol glued membrane or coating, PA thermosol glued membrane or coating.

6. method according to claim 5, is characterized in that: described base band (1) and unit composite bed (4) or composite bed (5) be combined with following steps:

The first step, unit composite bed (4) or composite bed (5) are placed in the die cavity of watchband mould, film (2) in unit composite bed (4) or composite bed (5) is close to die cavity diapire, the space that character pattern ink layer (3) is reserved in die cavity;

Second step, injects in the die cavity of described mould by double-component silicon sol liquid;

3rd step, rises to 90-180 DEG C by described mold temperature, and cure time, at 0.4-2 minute, makes liquid-state silicon gel be converted into solid-state base band (1) and bonds with unit composite bed (4) or composite bed (5);

4th step, opens described mould and is taken out by the watchband be made up of base band (1) and unit composite bed (4) or composite bed (5) made.

7. method according to claim 6, is characterized in that: described temperature is 140 DEG C.

8. method according to claim 5, is characterized in that: described base band (1) and unit composite bed (4) or composite bed (5) be combined with following steps:

The first step, unit composite bed (4) or composite bed (5) are placed in the die cavity of watchband mould, film (2) in unit composite bed (4) or composite bed (5) is close to die cavity diapire, the space that character pattern ink layer (3) is reserved in die cavity;

Second step, is positioned in described die cavity by the solid-state silica gel mixed, closed die;

3rd step, rises to 120 ~ 200 DEG C by described mold temperature, keeps the time of 0.8-3 minute, makes silica gel be sulfided into base band and bond with composite bed 5;

4th step, opens described mould and is taken out by the watchband be made up of base band (1) and unit composite bed (4) or composite bed (5) made.

9. method according to claim 8, is characterized in that: described temperature is 170 DEG C.

10. method according to claim 5, is characterized in that: described base band (1) and unit composite bed (4) or composite bed (5) be combined with following steps:

The first step, unit composite bed (4) or composite bed (5) are placed in the die cavity of watchband mould, film (2) in unit composite bed (4) or composite bed (5) is close to die cavity diapire, the space that character pattern ink layer (3) is reserved in die cavity;

Second step, is close to described unit composite bed (4) by the one side of the base band made or composite bed (5) puts into described die cavity;

3rd step, then the another side that the unit composite bed (4) made by another sheet or composite bed (5) are close to described base band puts into described die cavity, closed die;

4th step, rises to 90-200 DEG C by described mold temperature, keeps the time of 1-30 second, and unit composite bed (4) or composite bed (5) are bonded with base band;

5th step, opens described mould and is taken out by the watchband be made up of base band (1) and unit composite bed (4) or composite bed (5) made.