CN1699605A - Artificial leather with three-dimensional grains and method for manufacturing same - Google Patents

Abstract

The present invention discloses a preparation process of artificial stereo vein leather. The structure of the leather comprises: a leather or fiber material layer, a resin layer of various color that is coated on the leather or fiber layer and reveals different colors by dyeing with dyestuff, an innumerable convex mini-balls distributed on the resin layer to form the first veins, and local parts of the first veins sanded to form second veins. The present invention discloses the production method of the above product, which includes: manufacturing the mould of expected veins by pressing prototype object on it, pouring resin on the location of the veins, waiting its curing and adhering on the leather or fiber layer and then removing the mould, finally, the artificial leather production with stereo effect is obtained. The characteristic of the present invention is imitating the stereo effect of natural leather and durable. Additionally, different designs can be obtained during sanding process and very tiny parts can be displayed.

Description

A kind of artificial leather with three-dimensional grains and manufacture method thereof

Technical field

The present invention relates to imitation leather and manufacture method thereof with solid grain, more particularly, is the imitation leather manufacture method of resin being clung, solidifying to form different solid patterns on leather surface.

Background technology

In general, clothes and handbag etc., each epoch of fashion trend are all inequality, but are that the product of material has more stable consumption propensity with the skin, and domestic animal animals such as ox, sheep, pig are used for a long time as the leatherware material of main flow; And to nearest decades just the material of rare rare animal skins such as leopard, crocodile, snake, ostrich as clothes, leatherware is used.

In the last decade development trend, even also be used for the leatherware material with fresh-water fishes, ocean fish-skin.Its representative example is pearl fish-skin (also crying the devil fish).The pearl fish-skin generally is used for handbag, wallet or leather etc., and the part that is equivalent to the pearl fish spine is emerging in the preceding width of cloth.

The pearl fish-skin is accepted by the human consumer as the symbol of high-grade leatherware and is used, and it is cost an arm and a leg, so the method for olivet fish-skin occurred.

The making method that this lines that the natural peral fish is had shows is generally the metal die of convex type mould being made rule.Then metal die is pressed in usefulness on cladding or other filamentary materials, behind the forcer compression set, takes out, just can finish.Because general metal convex type mould is well-regulated, therefore, the synthetic leather that produces in this kind method is in the limitation that it is arranged aspect natural skin of outstanding behaviours or the natural irregular natural beauty.In addition, except whole uniform pattern, embodying trickle partial lines aspect has its limitation.

Summary of the invention

The present invention is to be that purpose develops for solving above problem.

First purpose of the present invention is the pattern of natural skin to be reproduced by original appearance, and guarantee the wearing quality of product as finished product production afterwards.

Second purpose of the present invention is produce local lines on the pattern uniformly all, and these lines to be comparison exquisiteness, lively, spatial.

For finishing these purposes, method of the present invention is prototype objects to be pressed onto template form desirable decorative pattern (pattern), pours resin into then on the position that forms pattern, its sclerosis, and after being bonded at above the leather template is spun off, be formed with the artificial leather product of stereoeffect at last.Concrete technical scheme is as follows:

1, makes metal die;

2, under the situation of heating, form pattern in the one side pressurization of resin template with above metal die;

3, above resin template is dried naturally;

4, in above resin template, evenly drop into the resin of liquid and the mixture of inorganic materials powder, form first lines (10a);

5, after first lines (10a) sclerosis, coat tackiness agent overleaf;

6, heating, drying resin template;

7, on above first lines (10a) back side, coat tackiness agent once more, spread leather or filamentary material then, the thermal compressor pressurization;

8, above material is broken away from from the resin template.

In addition, more more specifically explanation in order to increase the bounding force of lines (10a) surface and material, adds following steps: coat tackiness agent at first lines (10a) back side, dry naturally between step 6 and step 7.

Also have, in order to increase the bounding force between the material on the template, the heating, drying of step 6 adopts to dry in baking room and was advisable in 8-12 hour.

In addition, add a program above work in-process with the polishing local pattern mode grind second lines (10b).

Further just add pigment in the liquid resin in the above step 4.

Material about used resin template is silica gel, polyethylene (Polyethylene), polypropylene (Polypropylene) or the synthetic resins that contains acryl (Acryl).

The resin that step 6 adopted is unsaturated polyester (Polyester), acrylonitrile-butadiene-styrene (ABS) (ABS) and acryl (Acryl) resin, or polyvinyl chloride (PVC).

The artificial leather with three-dimensional grains that adopts aforesaid method to make comprises following structure:

---leather or fibrous material layer (20);

---adhere on leather or the fibrous material layer (20), and be coated with the resin layer (10) that paint manifests different color;

---at countless uneven first lines (10a) that protrudes bead formation of resin layer (10) surface arrangement;

---and polishing forms on the local location of first lines (10a) second lines (10b).

Wherein resin layer (20) is by unsaturated polyester (Polyester), acrylonitrile-butadiene-styrene (ABS) (ABS) and acryl (Acryl) resin, or in the polyvinyl chloride synthetic resins such as (PVC) optional one; Dropping into a certain amount of inorganic materials powder in addition in the resin layer (20) is advisable.

Above-mentioned inorganic powder material can be stone flour, jade powder, lime carbonate or iron powder.

Effect of the present invention is the stereoeffect of imitated natural leather, and durable.In addition, in the polishing operation, can grind different patterns, and all can show trickle part.

Description of drawings

Fig. 1 is the manufacturing process flow diagram of imitation leather of the present invention.

Fig. 2 is the stereographic map of the product of manufacture method manufacturing of the present invention

Fig. 3 is the A-A sectional view of Fig. 2.

Embodiment

As shown in Figure 1, 2, 3, this kind making method is injected into after stone flour and the hardening accelerator in the mould of wanting the pattern that embodies after the sclerosis for mixing in the resin in the past, adheres on the leather to finish.

Below, be example to make artificial pearl fish skin, describe concrete steps of the present invention in detail:

(1) make wooden mould by hand, make wooden mould after, according to it remake metal die.

Wooden die is rectangular plank, wherein the densely covered countless beads that protrude of one side.Do metal form (metal die) according to above wooden die cast.

(2) above metal die is attached to silica gel, polyethylene (Polyethylene), polypropylene (Polypropylene) or contains on the gummy plate of synthetic resins of acryl (Acryl), pressurize with a forcer on the gummy plate.Before exerting pressure, the resin template is warmed to 180 ℃ of molten points, so that the part pattern that metal protrudes is transferred to the resin template surface, form resin template (die).

(3) above resin die is dried about 10 minutes naturally.

(4) pour liquid resin into to the concave surface of the resin template that forms pattern, fill up mould, form first lines (10a).

Contain stone flour and a spot of hardening accelerator in the above-mentioned liquid resin, the part by weight of resin and stone flour be 1: 0.5 to 2, preferred 1: 1.As long as it is Powdered that the granularity of stone flour reaches.The optional unsaturated polyester of resin (Polyester), acrylonitrile-butadiene-styrene (ABS) (ABS) and Acryl (acryl) resin, or a kind of in the polyvinyl chloride (PVC).

Because resin is transparent or semitransparent, allow resin that certain color is arranged as needs, then can in resin, add pigment earlier, just inject the resin template then.For example, make the pearl fish line, can in liquid resin, add black pigment.

(5) drying naturally about 30 minutes, with first lines (10a) of sclerosis die surface, then at the coated on bottom side of first lines (10a) tackiness agent for the first time with mold.

Produce more softer leatherware as need, then adopt Polyurethane (urethane plastic) tackiness agent,, then adopt the Acryl tackiness agent as making harder leatherware.

(6) the stoving oven the inside heating of putting heating unit with mold into, it is constant temperature between 88 ℃-100 ℃ that the internal temperature of stoving oven requires, and passing to the other end from of dryer needs five minutes drying times.

(7) be sent on first lines (10a) bottom surface of the outer mould of stoving oven and be coated with tackiness agent for the second time, dried naturally then about 30 minutes.

(8) be coated in first lines (10a) bottom surface with tackiness agent for the third time, be attached to then above the leather, use the thermal compressor pressurizing attaching.

(9) the above resin material that is attached on the mould is dried by the fire 8-12 hour with well-done with template at baking room.

(10) from mould first lines (10a) is peeled away.

(11) as the ending operation, the part in first lines (10a) of material surface polishing forming and correlated second lines of first lines (10a) (10b), the bone dress lines of its structure on the pearl fish ridge shown on Fig. 2.

(12) finishing operation is for being sprayed onto first lines (10a) to brightening agent and second lines (10b) surface is dried then naturally with spraying to rob.

So just finished imitation leather.

The imitation leather of Zhi Zaoing (100) as shown in Figures 2 and 3 in this way; Sclerosis such as the resin of saying by the front, stone flour and the resin layer (10) that forms and form with the leather layer (20) that this resin layer (10) is bonded together.

Countless first lines (10a) that protrude bead formation of resin layer shown on the figure (10) distribution reach second lines (10b) that form after first lines (10a) is worn away.Because resin layer (10) the inside has comprised stone flour, with the stone flour is the center, close agglomerative resin layer is firm especially, and the stone flour and the resin that are penetrated between bead and the bead lump together, trickleer and protrude brokenly, can form the lines that approaches natural leather, relatively exemplary is the pearl fish dermatoglyph.

As mentioned above, though the present invention's pearl fish-skin for example, except this product, with different pigment, pattern, polishing can form difform imitative nature skin, as solid patterns such as ox-hide, ostrich skin, snakeskin, crocodile skin, shark skin and flower, personages.

The stone flour that drops into together with resin can be replaced by jade powder, lime carbonate, iron powder simultaneously.

Claims (10)

1, a kind of manufacture method of artificial leather with three-dimensional grains may further comprise the steps:

(1) makes metal die;

(2) under the situation of heating, form pattern in the one side pressurization of resin template with above metal die;

(3) above resin template is dried naturally;

(4) in above resin template, evenly drop into the resin of liquid and the mixture of inorganic materials powder, form first lines (10a).

(5) after first lines (10a) sclerosis, coat tackiness agent overleaf;

(6) heating, drying resin template;

(7) on above first lines (10a) back side, coat tackiness agent once more, spread leather or filamentary material then, the thermal compressor pressurization;

(8) above material is broken away from from the resin template.

2, by the manufacture method of the described a kind of artificial leather with three-dimensional grains of claim 1, it is characterized in that: between step (6) and step (7), add following steps: coat tackiness agent at first lines (10a) back side, dry naturally.

3, by the manufacture method of the described a kind of artificial leather with three-dimensional grains of claim 1, it is characterized in that: the heating, drying of step (6) adopts in baking room dried 8-12 hour.

4, by the manufacture method of the described a kind of artificial leather with three-dimensional grains of claim 1, it is characterized in that: add a step (9) after step (8), being polished in the part of first lines (10a) forms second lines (10b).

5, by the manufacture method of the described a kind of artificial leather with three-dimensional grains of claim 1, it is characterized in that: add pigment in the liquid resin in the step (4).

6, by the manufacture method of the described a kind of artificial leather with three-dimensional grains of claim 1, it is characterized in that: the material of described resin template is silica gel, Polyethylene (polyethylene), Polypropylene (polypropylene) and the synthetic resins group of containing Acryl (acryl).

7, press the manufacture method of the described a kind of artificial leather with three-dimensional grains of claim 1, it is characterized in that: the resin that step 6 adopted is unsaturated polyester (Polyester), acrylonitrile-butadiene-styrene (ABS) (ABS) and Acryl (acryl) resin, or polyvinyl chloride (PVC).

8, the manufacture method of the described a kind of artificial leather with three-dimensional grains of claim 1 is characterized in that: inorganic materials powder wherein is stone flour, jade powder, lime carbonate or iron powder.

9, the manufacture method of claim 1 or 4 described a kind of artificial leather with three-dimensional grains is characterized in that: first lines or second lines are sprayed brightening agent.

10, a kind of artificial leather with three-dimensional grains comprises following structure:

---leather or fibrous material layer (20);

---adhere on leather or the fibrous material layer (20), and be coated with the resin layer (10) that paint manifests different color;

---at countless uneven first lines (10a) that protrudes bead formation of resin layer (10) surface arrangement;

---and polishing forms on the local location of first lines (10a) second lines (10b).