CN102689480A - Preparation method of flame-retardant low-smoke PVC decorative leather - Google Patents

Abstract

The invention relates to a preparation method of flame-retardant low-smoke PVC decorative leather, and belongs to the technical field of artificial leather. The decorative leather is tightly compounded by the following four layers in order from bottom to top: a knitted fabric base cloth, a PVC foaming base material, a skin texture and color imitated pattern layer, and a flame-retardant acrylic resin layer. The method comprises the following process steps: base cloth processing; PVC foaming base material preparation; skin texture and color imitated pattern printing; artificial leather base film preparation; heat sealing; surface coating processing; and step seven of curing, wherein a semi-finished product is put in a curing chamber for resin curing, the curing time is 8 hours, the curing temperature is 50-60 DEG C, and the a finished product is obtained after taken out from curing. The flame-retardant low-smoke effect of the product of the invention is realized by adding a flame retardant into the acrylic resin coated on the surface.

Description

Fire-retardant low cigarette PVC decorates the preparation method of leather

Technical field

The present invention relates to the preparation method that a kind of PVC decorates leather.Belong to the artificial leather technical field.

Background technology

Before the present invention makes; In the past decoration leather no matter be corium or the equal non-refractory of artificial leather, be prone to scratch, do not possess fire-retardant function; And when burning, be exactly that dense smoke is bigger; Greatly influence environmental sanitation and harm life safety and healthy, greatly influence and reduced decorative effect, reduced the class and the value of end product.

Summary of the invention

The objective of the invention is to overcome above-mentioned deficiency, provide a kind of and both had the same artificial decoration leather of corium, and the fire-retardant low cigarette PVC that makes this artificial decoration leather have high temperature resistant rub resistance, fire-retardant fireproof, low function of being fuming simultaneously decorates the preparation method of leather.

The objective of the invention is to realize like this: a kind of fire-retardant low cigarette PVC decorates the preparation method of leather, it is characterized in that: said decoration leather from bottom to top successively by looped fabric base cloth, PVC foamed substrate, the color patterned layer of emulation dermatoglyph and flame-proof acrylic resin layer totally four layers closely be composited; Said method comprises following processing step:

Step 1, base cloth are handled

The looped fabric base cloth is scratched into vertical sheet stock looped fabric to the vertical gluing of cloth bobbin after swing a knife through planting-opener; The harvest volume is subsequent use behind the white oil when oven for drying is fallen moisture and produced looped fabric then, wherein, and spread 3 ~ 4 gram/rice; 120 ~ 130 ℃ of glue temperature, 65 ~ 80 meters/minute of rolling speed;

Step 2, preparation PVC foamed substrate

The dibutyl ester that polyvinyl chloride resin is added certain proportioning; Heated and stirred to 120 ~ 130 ~ C stirs, and the entering banbury is heated to 170 ~ 80 ℃ and tentatively plastifies; Get into two roller mills maintain the temperature at 170 ~ 180 ℃ proceed the plasticizing; Get into 160 ~ 170 ℃ of further plasticizings of extruder, and the entering four-roll calender keeps temperature to roll into the printing facial mask for 170 ~ 190 ℃ after carrying out contaminant filter, subsequent use through five rollers cooling rolling; 75～90 meters/minute of rolling speed, the each component weight portion proportioning that feeds intake is following: 100 parts of polyvinyl chloride resins and 25 parts of dibutyl esters;

Step 3, the printing of emulation dermatoglyph pattern

The PVC foamed substrate is subsequent use through printing machine intaglio plate chromaticity printing rolling after cooling by product regulation requirement color and luster, dermatoglyph, pattern, 75 ~ 90 meters/minute of rolling speed;

Step 4, preparation people remove from office basement membrane

Polyvinyl chloride resin is added the dibutyl ester and the precipitated calcium carbonate of certain proportioning, and heated and stirred to 105 ~ 120 ℃ stir; Get into banbury and be heated to 170 ~ 180 ℃; Tentatively plastify, get into two roller mills and keep 170 ~ 180 ℃ of temperature, continue plasticizing; Getting into extruder again keeps temperature to push plasticizing for 160 ~ 170 ℃; And carry out getting into behind the contaminant filter four-roll calender and keep 170 ~ 180 ℃ of calendering adults of temperature leather basement membrane, 60 meters/minute of calender rolling velocities, the each component weight portion proportioning that feeds intake is following: 35 parts of 100 parts of polyvinyl chloride resins, 25 parts of dibutyl esters and precipitated calcium carbonates;

Step 5, heat seal

Looped fabric base cloth, the PVC foamed substrate that is printed with emulation dermatoglyph pattern are removed from office basement membrane with the people be in the same place, form people's leather through four roller machine heat seals, 170 ~ 180 ℃ of heat-seal temperatures, heat seal is after five rollers cooling rolling, 60 meters/minute of rolling speed;

Step 6, surface-coated are handled

The people that heat seal is good removes from office the surface-coated acrylic resin; Contain fire-retardant N H1197 in this acrylic resin; People's leather after the coating is heated to 130 ~ 145 ℃ through baking oven; Rolling after cooling becomes to decorate the leather semi-finished product, 85 ~ 105 meters/minute of rolling speed, and the weight portion proportioning that feeds intake of each component is: 3.5 parts of 100 parts of acrylic resins and fire-retardant N H1197;

Step 7, curing

Semi-finished product are placed curing room carry out resin solidification, 8 hours hardening times, 50 ~ 60 ℃ of solidification temperatures, being shifted out after the curing becomes finished product.

Fire-retardant low hood of the present invention is through adding fire retardant in the surface-coated acrylic resin, thereby reaches the effect of fire-retardant low cigarette.

The invention has the beneficial effects as follows:

1, has fire-retardant low hood.

2, has high temperature resistant function.

3, improved case hardness and wear-resisting wiping.

4, improved the class value of end product.

Description of drawings

Fig. 1 decorates the section structure sketch map of leather for the fire-retardant low cigarette PVC of the present invention.

Reference numeral among the figure:

Looped fabric base cloth 1, PVC foamed substrate 2, PVC film emulation dermatoglyph patterned layer 3, flame-proof acrylic resin layer 4.

The specific embodiment

Referring to Fig. 1, Fig. 1 decorates the section structure sketch map of leather for the fire-retardant low cigarette PVC of the present invention.Can find out that by Fig. 1 the fire-retardant low cigarette PVC of the present invention decorates leather, said decoration leather from bottom to top successively by looped fabric base cloth 1, PVC foamed substrate 2, the color patterned layer 3 of emulation dermatoglyph and flame-proof acrylic resin layer 4 totally four layers closely be composited.Its preparation method comprises following processing step:

Step 1, base cloth are handled

The looped fabric base cloth is scratched into vertical sheet stock looped fabric to the vertical gluing of cloth bobbin after swing a knife through planting-opener, and the harvest volume is subsequent use behind the white oil when oven for drying is fallen moisture and produced looped fabric then.Spread 3 ~ 4 gram/rice, 120 ~ 130 ℃ of glue temperature, 65 ~ 80 meters/minute of rolling speed.

Step 2, preparation PVC foamed substrate

The dibutyl ester that polyvinyl chloride resin is added certain proportioning; Heated and stirred to 120 ~ 130 ~ C stirs, and the entering banbury is heated to 170 ~ 80 ℃ and tentatively plastifies; Get into two roller mills maintain the temperature at 170 ~ 180 ℃ proceed the plasticizing; Get into 160 ~ 170 ℃ of further plasticizings of extruder, and the entering four-roll calender keeps temperature to roll into the printing facial mask for 170 ~ 190 ℃ after carrying out contaminant filter, subsequent use through five rollers cooling rolling.75～90 meters/minute of rolling speed.The each component weight portion proportioning that feeds intake is following: 100 parts of polyvinyl chloride resins and 25 parts of dibutyl esters.

Step 3, the printing of emulation dermatoglyph pattern

The PVC foamed substrate is subsequent use through printing machine intaglio plate chromaticity printing rolling after cooling by product regulation requirement color and luster, dermatoglyph, pattern, 75 ~ 90 meters/minute of rolling speed.

Step 4, preparation people remove from office basement membrane

The dibutyl ester and the precipitated calcium carbonate that polyvinyl chloride resin are added certain proportioning; Heated and stirred to 105 ~ 120 ℃; Stir; Get into banbury and be heated to 170 ~ 180 ℃, tentatively plastify, get into two roller mills and keep 170 ~ 180 ℃ of temperature; Continue plasticizing; Get into extruder again and keep temperature to push plasticizing for 160 ~ 170 ℃, and carry out getting into 170 ~ 180 ℃ of calendering adults of four-roll calender maintenance temperature leather basement membrane, 60 meters/minute of calender rolling velocities behind the contaminant filter.The each component weight portion proportioning that feeds intake is following: 35 parts of 100 parts of polyvinyl chloride resins, 25 parts of dibutyl esters and precipitated calcium carbonates.

Step 5, heat seal

Looped fabric base cloth 1, the PVC foamed substrate 2 that is printed with emulation dermatoglyph pattern are removed from office basement membrane with the people be in the same place, form people's leather through four roller machine heat seals, 170 ~ 180 ℃ of heat-seal temperatures, heat seal is after five rollers cooling rolling, 60 meters/minute of rolling speed.

Step 6, surface-coated are handled

The people that heat seal is good removes from office the surface-coated acrylic resin; Contain fire-retardant N H1197 in this acrylic resin; People's leather after the coating is heated to 130 ~ 145 ℃ through baking oven; Rolling after cooling becomes to decorate the leather semi-finished product, 85 ~ 105 meters/minute of rolling speed, and the weight portion proportioning that feeds intake of each component is: 3.5 parts of 100 parts of acrylic resins and fire-retardant N H1197.

Step 7, curing

Semi-finished product are placed curing room carry out resin solidification, 8 hours hardening times, 50 ~ 60 ℃ of solidification temperatures.Being shifted out after the curing becomes finished product.

Claims (1)

1. a fire-retardant low cigarette PVC decorates the preparation method of leather, it is characterized in that: said decoration leather from bottom to top successively by looped fabric base cloth, PVC foamed substrate, the color patterned layer of emulation dermatoglyph and flame-proof acrylic resin layer totally four layers closely be composited; Said method comprises following processing step:

Step 1, base cloth are handled

The looped fabric base cloth is scratched into vertical sheet stock looped fabric to the vertical gluing of cloth bobbin after swing a knife through planting-opener; The harvest volume is subsequent use behind the white oil when oven for drying is fallen moisture and produced looped fabric then, wherein, and spread 3 ~ 4 gram/rice; 120 ~ 130 ℃ of glue temperature, 65 ~ 80 meters/minute of rolling speed;

Step 2, preparation PVC foamed substrate

The dibutyl ester that polyvinyl chloride resin is added certain proportioning; Heated and stirred to 120 ~ 130 ~ C stirs, and the entering banbury is heated to 170 ~ 80 ℃ and tentatively plastifies; Get into two roller mills maintain the temperature at 170 ~ 180 ℃ proceed the plasticizing; Get into 160 ~ 170 ℃ of further plasticizings of extruder, and the entering four-roll calender keeps temperature to roll into the printing facial mask for 170 ~ 190 ℃ after carrying out contaminant filter, subsequent use through five rollers cooling rolling; 75～90 meters/minute of rolling speed, the each component weight portion proportioning that feeds intake is following: 100 parts of polyvinyl chloride resins and 25 parts of dibutyl esters;

Step 3, the printing of emulation dermatoglyph pattern

The PVC foamed substrate is subsequent use through printing machine intaglio plate chromaticity printing rolling after cooling by product regulation requirement color and luster, dermatoglyph, pattern, 75 ~ 90 meters/minute of rolling speed;

Step 4, preparation people remove from office basement membrane

Polyvinyl chloride resin is added the dibutyl ester and the precipitated calcium carbonate of certain proportioning, and heated and stirred to 105 ~ 120 ℃ stir; Get into banbury and be heated to 170 ~ 180 ℃; Tentatively plastify, get into two roller mills and keep 170 ~ 180 ℃ of temperature, continue plasticizing; Getting into extruder again keeps temperature to push plasticizing for 160 ~ 170 ℃; And carry out getting into behind the contaminant filter four-roll calender and keep 170 ~ 180 ℃ of calendering adults of temperature leather basement membrane, 60 meters/minute of calender rolling velocities, the each component weight portion proportioning that feeds intake is following: 35 parts of 100 parts of polyvinyl chloride resins, 25 parts of dibutyl esters and precipitated calcium carbonates;

Step 5, heat seal

Looped fabric base cloth, the PVC foamed substrate that is printed with emulation dermatoglyph pattern are removed from office basement membrane with the people be in the same place, form people's leather through four roller machine heat seals, 170 ~ 180 ℃ of heat-seal temperatures, heat seal is after five rollers cooling rolling, 60 meters/minute of rolling speed;

Step 6, surface-coated are handled

The people that heat seal is good removes from office the surface-coated acrylic resin; Contain fire-retardant N H1197 in this acrylic resin; People's leather after the coating is heated to 130 ~ 145 ℃ through baking oven; Rolling after cooling becomes to decorate the leather semi-finished product, 85 ~ 105 meters/minute of rolling speed, and the weight portion proportioning that feeds intake of each component is: 3.5 parts of 100 parts of acrylic resins and fire-retardant N H1197;

Step 7, curing

Semi-finished product are placed curing room carry out resin solidification, 8 hours hardening times, 50 ~ 60 ℃ of solidification temperatures, being shifted out after the curing becomes finished product.

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