CN109811093A - A kind of leather protection film coating agent and preparation method thereof - Google Patents
A kind of leather protection film coating agent and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a kind of leathers to protect film coating agent; it is made of following raw material: 35-50 parts of modified nitrocellulose lotions; 25-35 parts of modified silicon oils, 5-15 parts of thickeners, 3-8 parts of polyacrylic acid; 10-15 parts of defoaming agents; 8% glacial acetic acid of 12-18 part, 10% sodium bicarbonate solution of 3-8 part, 3-10 parts of essence; 35-50 parts of dehydrated alcohols, 55-70 parts of deionized waters；The invention also discloses a kind of preparation methods of leather protection film coating agent；To be modified nitrocellulose lotion, modified silicon oil, polyacrylic acid and 8% glacial acetic acid etc. as raw material, modified nitrocellulose lotion has excellent stability and compared with strong adhesive force the present invention, therefore can assign the good stability of film coating agent and adhesion property；The present invention prepares a kind of modified silicon oil, and modified containing hydrogen silicone oil has good heat resistance and stability, further assigns film coating agent excellent heat resistance and stability.
Description
Technical field
The invention belongs to spray coating technique field, specially a kind of leather protection film coating agent and preparation method thereof.
Background technique
No matter the main material used in leather shoes production or fur clothing, leather sofa manufacturing process is all that leather (is also day
Right leather), it is the referred to as natural leather (being corium) made of Animal Skin.Corium is by a series of physics in leather-making technology
After chemistry and machining, it is transformed into a kind of durable substance of fixation, referred to as leather, referred to as removes from office.Leather is mankind's early stage
I.e. existing product in culture, leather belong to natural products, limited source, more its preciousness.
Leather nursing refers to real leather products, such as to fur clothing, leather sofa, skin chair, suitcase, sack made by leather, leather shoes cleaning, protect
A series of nursery works such as feeding, glazing, polishing, complementary color, plated film.Leather film coating agent used in existing leather nursing process is most
It being made of organic organic silicon emulsion or solid wax, this existing leather-like film coating agent exists not dry, tacky or is easily cracked firmly very much,
It is not easy constructing operation, not stain resistance, the defects of gloss is not lasting.
Chinese invention patent CN105803135A discloses a kind of leather protection film coating agent and preparation method thereof.The plating
Film includes Brazilian wax emulsion, polyurethane, organic silicon emulsion, levelling agent, bleeding agent, water.Leather protection plating of the present invention
Film is good every dirt, waterproof, crocking resistance；In addition, leather protection film coating agent of the present invention can form one in leather surface
Layer protective layer, dirty adherency easily do not live, and clean more labor-saving, extension leather service life.But the film coating agent can be to environment band
It pollutes, and has certain corrosivity, furthermore organic silicon emulsion guard time is shorter and glossiness is inadequate, the plating of all preparations
Film is unable to satisfy the demand of people's daily life.
Summary of the invention
In order to overcome above-mentioned technical problem, the present invention provides a kind of leather protection film coating agent and preparation method thereof.This hair
It is bright prepare leather protection film coating agent during to be modified nitrocellulose lotion, modified silicon oil, polyacrylic acid and 8% ice vinegar
Acid etc. is used as raw material, and dehydrated alcohol prepares a kind of leather protection film coating agent as solvent, and modified nitrocellulose lotion has excellent
Different stability and compared with strong adhesive force, therefore the good stability of film coating agent and adhesion property can be assigned；The present invention passes through second
Glycol dimethyl ether and dehydrated alcohol as mixed solvent prepare a kind of compounding mixed liquor to be modified to containing hydrogen silicone oil, modified
Containing hydrogen silicone oil afterwards has good heat resistance and stability, further assigns film coating agent excellent heat resistance and stability.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of leather protection film coating agent, is made: 35-50 parts of modified nitrocellulose lotions, 25- of following raw material
35 parts of modified silicon oils, 5-15 parts of thickeners, 3-8 parts of polyacrylic acid, 10-15 parts of defoaming agents, 8% glacial acetic acid of 12-18 part, 3-8 parts
10% sodium bicarbonate solution, 3-10 parts of essence, 35-50 parts of dehydrated alcohols, 55-70 parts of deionized waters；
Leather protection film coating agent is made by the following method:
Step S1, modified nitrocellulose lotion is added in the beaker equipped with dehydrated alcohol, 45 DEG C of heating water baths, at the uniform velocity
8% glacial acetic acid is added after stirring 25min, is warming up to 60 DEG C, stirs 5min, it is spare to make A liquid；
Step S2, modified silicon oil, deionized water are added in three-necked flask, 70 DEG C of heating water baths, magnetic agitation 30min,
Defoaming agent is added, is warming up to 75 DEG C, polyacrylic acid is added after keeping the temperature 2h, at the uniform velocity stirring 15min, back flow reaction 1h makees B liquid；
Step S3, B liquid is poured into A liquid, at the uniform velocity stirring 5min, 10% sodium bicarbonate solution is added, is warming up to 50 DEG C,
Mixed liquor is obtained after reacting 2h at a temperature of this, mixed liquor is dispersed with dispersion machine after ultrasonic 30min, controls turning for dispersion machine
Speed is 500r/min, jitter time 50min；
Step S4, it is transferred in Scattered Kettle, thickener and essence is added, is warming up to 75 DEG C and continues to be dispersed with stirring, control point
Dissipating speed is 2000r/min, jitter time 1h, and leather is made and protects film coating agent.
Further, the modified nitrocellulose lotion is made of following raw material: 6-10 parts of nitrocellulose,
5-8 parts of alkyd resins, 3-8 parts of tributyl citrate, 2-5 parts of polyvinylpyrrolidones, 30-40 parts of diethylene glycol (DEG) alkyl ethers, 18-25
Part acetone, 3-5 parts of sodium laurates.
Further, the modified nitrocellulose lotion is made by the following method:
(1) nitrocellulose and acetone are added in three-necked flask, at the uniform velocity stirring after nitrocellulose dissolution until be added
Diethylene glycol (DEG) alkyl ether, 50 DEG C of heating water baths simultaneously stir 2h with the revolving speed of 120r/min, tributyl citrate and alkyd resin are added,
70 DEG C are warming up to, at the uniform velocity stirring 30min, polyvinylpyrrolidone is added, continue to stir 15min, mixed emulsion A, transfer is made
It is spare into beaker；
(2) sodium laurate and deionized water are added in conical flask, lotion is obtained with the revolving speed stirring 45min of 180r/min
B carries out magnetic agitation to mixed emulsion A with the revolving speed of 480r/min, is heated to 55 DEG C, and mixed emulsion A is added in lotion B
In, deionized water is added until forming oil-in-water emulsion, modified nitrocellulose lotion is made.
Nitrocellulose chain is made of anhydroglucose cyclic residue, has certain rigidity, but the ether chain of interannular
So that chain is easy to happen interior rotation, thus the main chain of nitrocellulose between perfect rigidity and full flexible two it is extreme between,
Belong to semi-rigid macromolecular chain, so the lotion that nitrocellulose is formed is easy to whiten, adhesive force is poor, so as to cause final system
The adhesive force of standby film coating agent is poor, and glossiness and appearance are undesirable；Nitrocellulose is dissolved in acetone by the present invention, is passed through
Diethylene glycol (DEG) alkyl ether is added and tributyl citrate forms a kind of mixed system, alkyd resin is added, nitrocellulose is changed
Property, it adds sodium laurate later and deionized water, sodium laurate can reduce the surface tension of solvent and deionized water, so that molten
Agent can be dispersed into small water droplet in an aqueous medium, increase oil mutually with the contact area of water phase, further enhance mixed system
Stability, later by addition deionized water until form a kind of oil-in-water emulsion, final be made is stablized and is had relatively strong
The modification nitrocellulose lotion of adhesive force.
Further, the modified silicon oil is made of following raw material: 12-18 parts of hydroquinones, 5-15 parts of benzene six
Formic acid, 35-50 parts of dehydrated alcohols, 2-6 parts of cinnamic acids, 10-15 parts of containing hydrogen silicone oils (hydrogen content 1.5), 8-15 parts of glycol dinitrates
Ether.
Further, the modified silicon oil is made by the following method:
(1) glycol dimethyl ether and hydroquinone are added in three-necked flask, it is anhydrous that half is added after at the uniform velocity stirring 10min
Ethyl alcohol is warming up to 75 DEG C, at the uniform velocity stirring 15min, and cinnamic acid is added, is stirred with the revolving speed of 180r/min and is warming up to 110
DEG C, every 30min detects an acid value after reacting 2h at this temperature, until 10% sodium hydroxide solution tune is added dropwise after stablizing in acid value
PH is saved, until pH=7, liquid separation, washing, dry obtained mixed liquor；
(2) mixed liquor made from step (1) is transferred in four-hole boiling flask, the other half dehydrated alcohol is added, at the uniform velocity stirs
And 65 DEG C are warming up to, mellitic acid is added after keeping the temperature 15min, is warming up to 80 DEG C, is passed through nitrogen discharge air, Silicon Containing Hydrogen is added
Oil reacts 5h at this temperature and tests hydrogen content, solvent is removed in vacuum when hydrogen content is stablized, modified silicon oil is made.
Containing hydrogen silicone oil, due to containing active hydrogen, can produce addition and crosslinking be anti-in addition to the characteristic with dimethicone
It answers, therefore a variety of chemical reactions can be participated in, there is good filming performance, but can be reacted with hydroxyl radical free radical or alcoholic extract hydroxyl group, put
Hydrogen out, furthermore its heat resistance is not so good as dimethicone, leads to the film coating agent heat resistance prepared using containing hydrogen silicone oil as raw material not
It is enough excellent.So it is raw material that the present invention, which first passes through mellitic acid and cinnamic acid, using glycol dimethyl ether and dehydrated alcohol as mixing
Bonding solvent prepares a kind of compounding mixed liquor to be modified to containing hydrogen silicone oil, and hydroquinone, which is added, can enhance compounding mixed liquor
Stability, final modified silicon oil obtained, compounding mixed liquor can be avoided hydroxyl in modifying process and si-h bond condensation generates
Side reaction, and modified silicon oil obtained has good heat resistance and stability, further assigns film coating agent excellent heat-resisting
Property and stability.
Further, the thickener is one or more of starch, gelatin, sodium alginate.
Further, the defoaming agent be polyoxyethylene polyoxypropylene pentaerythrite ether, polyoxyethylene polyoxy propyl alcohol amidogen ether,
One or more of polypropylene glycerol aether.
A kind of preparation method of leather protection film coating agent, includes the following steps:
Step S1, modified nitrocellulose lotion is added in the beaker equipped with dehydrated alcohol, 45 DEG C of heating water baths, at the uniform velocity
8% glacial acetic acid is added after stirring 25min, is warming up to 60 DEG C, stirs 5min, it is spare to make A liquid；
Step S2, modified silicon oil, deionized water are added in three-necked flask, 70 DEG C of heating water baths, magnetic agitation 30min,
Defoaming agent is added, is warming up to 75 DEG C, polyacrylic acid is added after keeping the temperature 2h, at the uniform velocity stirring 15min, back flow reaction 1h makees B liquid；
Step S3, B liquid is poured into A liquid, at the uniform velocity stirring 5min, 10% sodium bicarbonate solution is added, is warming up to 50 DEG C,
Mixed liquor is obtained after reacting 2h at a temperature of this, mixed liquor is dispersed with dispersion machine after ultrasonic 30min, controls turning for dispersion machine
Speed is 500r/min, jitter time 50min；
Step S4, it is transferred in Scattered Kettle, thickener and essence is added, is warming up to 75 DEG C and continues to be dispersed with stirring, control point
Dissipating speed is 2000r/min, jitter time 1h, and leather is made and protects film coating agent.
Beneficial effects of the present invention:
(1) present invention is modified nitrocellulose lotion during preparing leather protection film coating agent, modified silicon oil, gathers
Acrylic acid and 8% glacial acetic acid etc. are used as raw material, and dehydrated alcohol prepares a kind of leather protection film coating agent as solvent, and modified nitric acid is fine
The plain lotion of dimension has excellent stability and compared with strong adhesive force, therefore can assign the good stability of film coating agent and adhesion
Energy；The present invention prepares a kind of compounding mixed liquor as mixed solvent by glycol dimethyl ether and dehydrated alcohol come to Silicon Containing Hydrogen
Oil is modified, and modified containing hydrogen silicone oil has good heat resistance and stability, further assigns film coating agent excellent resistance to
Hot and stability；
(2) due to single functional group, there are unicity for effect after being modified to silicone oil, so the present invention changes in preparation
During property silicone oil, a kind of compounding mixed liquor is prepared as mixed solvent by glycol dimethyl ether and dehydrated alcohol first,
And the stability that hydroquinone is used to enhance compounding mixed liquor is added, come solve compounding mixed liquor due to unstable quality or
Finishing effect is difficult to lasting bring adverse effect so that by film coating agent prepared by modified silicon oil have excellent heat resistance and
Stability；
(3) leather protection film coating agent prepared by the present invention can form a protective layer, protective layer peace in leather surface
Atoxic, will not be to human body and environmental effects, and will not cause to corrode to leather, has excellent stabilization and heat resistance
Can, glossiness is high, can satisfy the demand of people's daily life.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, all other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
Embodiment 1
A kind of leather protection film coating agent, be made of following raw material: 35 parts of modified nitrocellulose lotions, 25 parts change
Property silicone oil, 5 parts of gelatin, 3 parts of polyacrylic acid, 10 parts of polypropylene glycerol aethers, 12 part of 8% glacial acetic acid, 3 part of 10% sodium bicarbonate are molten
Liquid, 3 parts of essence, 35 parts of dehydrated alcohols, 55 parts of deionized waters；
Leather protection film coating agent is made by the following method:
Step S1, modified nitrocellulose lotion is added in the beaker equipped with dehydrated alcohol, 45 DEG C of heating water baths, at the uniform velocity
8% glacial acetic acid is added after stirring 25min, is warming up to 60 DEG C, stirs 5min, it is spare to make A liquid；
Step S2, modified silicon oil, deionized water are added in three-necked flask, 70 DEG C of heating water baths, magnetic agitation 30min,
Polypropylene glycerol aether is added, is warming up to 75 DEG C, polyacrylic acid is added after keeping the temperature 2h, at the uniform velocity stirring 15min, back flow reaction 1h,
Make B liquid；
Step S3, B liquid is poured into A liquid, at the uniform velocity stirring 5min, 10% sodium bicarbonate solution is added, is warming up to 50 DEG C,
Mixed liquor is obtained after reacting 2h at a temperature of this, mixed liquor is dispersed with dispersion machine after ultrasonic 30min, controls turning for dispersion machine
Speed is 500r/min, jitter time 50min；
Step S4, it is transferred in Scattered Kettle, gelatin and essence is added, is warming up to 75 DEG C and continues to be dispersed with stirring, control dispersion
Speed is 2000r/min, jitter time 1h, and leather is made and protects film coating agent；
The modified nitrocellulose lotion is made by the following method:
(1) nitrocellulose and acetone are added in three-necked flask, at the uniform velocity stirring after nitrocellulose dissolution until be added
Diethylene glycol (DEG) alkyl ether, 50 DEG C of heating water baths simultaneously stir 2h with the revolving speed of 120r/min, tributyl citrate and alkyd resin are added,
70 DEG C are warming up to, at the uniform velocity stirring 30min, polyvinylpyrrolidone is added, continue to stir 15min, mixed emulsion A, transfer is made
It is spare into beaker；
(2) sodium laurate and deionized water are added in conical flask, lotion is obtained with the revolving speed stirring 45min of 180r/min
B carries out magnetic agitation to mixed emulsion A with the revolving speed of 480r/min, is heated to 55 DEG C, and mixed emulsion A is added in lotion B
In, deionized water is added until forming oil-in-water emulsion, modified nitrocellulose lotion is made；
The modified silicon oil is made by the following method:
(1) glycol dimethyl ether and hydroquinone are added in three-necked flask, it is anhydrous that half is added after at the uniform velocity stirring 10min
Ethyl alcohol is warming up to 75 DEG C, at the uniform velocity stirring 15min, and cinnamic acid is added, is stirred with the revolving speed of 180r/min and is warming up to 110
DEG C, every 30min detects an acid value after reacting 2h at this temperature, until 10% sodium hydroxide solution tune is added dropwise after stablizing in acid value
PH is saved, until pH=7, liquid separation, washing, dry obtained mixed liquor；
(2) mixed liquor made from step (1) is transferred in four-hole boiling flask, the other half dehydrated alcohol is added, at the uniform velocity stirs
And 65 DEG C are warming up to, mellitic acid is added after keeping the temperature 15min, is warming up to 80 DEG C, is passed through nitrogen discharge air, Silicon Containing Hydrogen is added
Oil reacts 5h at this temperature and tests hydrogen content, solvent is removed in vacuum when hydrogen content is stablized, modified silicon oil is made.
Embodiment 2
A kind of leather protection film coating agent, be made of following raw material: 40 parts of modified nitrocellulose lotions, 26 parts change
Property silicone oil, 8 parts of gelatin, 5 parts of polyacrylic acid, 12 parts of polypropylene glycerol aethers, 14 part of 8% glacial acetic acid, 5 part of 10% sodium bicarbonate are molten
Liquid, 5 parts of essence, 40 parts of dehydrated alcohols, 60 parts of deionized waters；
Leather protection film coating agent is made by the following method:
Step S1, modified nitrocellulose lotion is added in the beaker equipped with dehydrated alcohol, 45 DEG C of heating water baths, at the uniform velocity
8% glacial acetic acid is added after stirring 25min, is warming up to 60 DEG C, stirs 5min, it is spare to make A liquid；
Step S2, modified silicon oil, deionized water are added in three-necked flask, 70 DEG C of heating water baths, magnetic agitation 30min,
Polypropylene glycerol aether is added, is warming up to 75 DEG C, polyacrylic acid is added after keeping the temperature 2h, at the uniform velocity stirring 15min, back flow reaction 1h,
Make B liquid；
Step S3, B liquid is poured into A liquid, at the uniform velocity stirring 5min, 10% sodium bicarbonate solution is added, is warming up to 50 DEG C,
Mixed liquor is obtained after reacting 2h at a temperature of this, mixed liquor is dispersed with dispersion machine after ultrasonic 30min, controls turning for dispersion machine
Speed is 500r/min, jitter time 50min；
Step S4, it is transferred in Scattered Kettle, gelatin and essence is added, is warming up to 75 DEG C and continues to be dispersed with stirring, control dispersion
Speed is 2000r/min, jitter time 1h, and leather is made and protects film coating agent.
Embodiment 3
A kind of leather protection film coating agent, be made of following raw material: 45 parts of modified nitrocellulose lotions, 30 parts change
Property silicone oil, 12 parts of gelatin, 6 parts of polyacrylic acid, 12 parts of polypropylene glycerol aethers, 16 part of 8% glacial acetic acid, 6 part of 10% sodium bicarbonate
Solution, 8 parts of essence, 45 parts of dehydrated alcohols, 65 parts of deionized waters；
Leather protection film coating agent is made by the following method:
Step S1, modified nitrocellulose lotion is added in the beaker equipped with dehydrated alcohol, 45 DEG C of heating water baths, at the uniform velocity
8% glacial acetic acid is added after stirring 25min, is warming up to 60 DEG C, stirs 5min, it is spare to make A liquid；
Step S2, modified silicon oil, deionized water are added in three-necked flask, 70 DEG C of heating water baths, magnetic agitation 30min,
Polypropylene glycerol aether is added, is warming up to 75 DEG C, polyacrylic acid is added after keeping the temperature 2h, at the uniform velocity stirring 15min, back flow reaction 1h,
Make B liquid；
Step S3, B liquid is poured into A liquid, at the uniform velocity stirring 5min, 10% sodium bicarbonate solution is added, is warming up to 50 DEG C,
Mixed liquor is obtained after reacting 2h at a temperature of this, mixed liquor is dispersed with dispersion machine after ultrasonic 30min, controls turning for dispersion machine
Speed is 500r/min, jitter time 50min；
Step S4, it is transferred in Scattered Kettle, gelatin and essence is added, is warming up to 75 DEG C and continues to be dispersed with stirring, control dispersion
Speed is 2000r/min, jitter time 1h, and leather is made and protects film coating agent.
Embodiment 4
A kind of leather protection film coating agent, be made of following raw material: 50 parts of modified nitrocellulose lotions, 35 parts change
Property silicone oil, 15 parts of gelatin, 8 parts of polyacrylic acid, 15 parts of polypropylene glycerol aethers, 18 part of 8% glacial acetic acid, 8 part of 10% sodium bicarbonate
Solution, 10 parts of essence, 50 parts of dehydrated alcohols, 70 parts of deionized waters；
Leather protection film coating agent is made by the following method:
Step S1, modified nitrocellulose lotion is added in the beaker equipped with dehydrated alcohol, 45 DEG C of heating water baths, at the uniform velocity
8% glacial acetic acid is added after stirring 25min, is warming up to 60 DEG C, stirs 5min, it is spare to make A liquid；
Step S2, modified silicon oil, deionized water are added in three-necked flask, 70 DEG C of heating water baths, magnetic agitation 30min,
Polypropylene glycerol aether is added, is warming up to 75 DEG C, polyacrylic acid is added after keeping the temperature 2h, at the uniform velocity stirring 15min, back flow reaction 1h,
Make B liquid；
Step S3, B liquid is poured into A liquid, at the uniform velocity stirring 5min, 10% sodium bicarbonate solution is added, is warming up to 50 DEG C,
Mixed liquor is obtained after reacting 2h at a temperature of this, mixed liquor is dispersed with dispersion machine after ultrasonic 30min, controls turning for dispersion machine
Speed is 500r/min, jitter time 50min；
Step S4, it is transferred in Scattered Kettle, gelatin and essence is added, is warming up to 75 DEG C and continues to be dispersed with stirring, control dispersion
Speed is 2000r/min, jitter time 1h, and leather is made and protects film coating agent.
Comparative example 1
This comparative example replaces modified nitrocellulose lotion with nitrocellulose compared with Example 1, and preparation method is as follows
It is shown:
Step S1, nitrocellulose is added in the beaker equipped with dehydrated alcohol, 45 DEG C of heating water baths at the uniform velocity stir
8% glacial acetic acid is added after 25min, is warming up to 60 DEG C, stirs 5min, it is spare to make A liquid；
Step S2, modified silicon oil, deionized water are added in three-necked flask, 70 DEG C of heating water baths, magnetic agitation 30min,
Polypropylene glycerol aether is added, is warming up to 75 DEG C, polyacrylic acid is added after keeping the temperature 2h, at the uniform velocity stirring 15min, back flow reaction 1h,
Make B liquid；
Step S3, B liquid is poured into A liquid, at the uniform velocity stirring 5min, 10% sodium bicarbonate solution is added, is warming up to 50 DEG C,
Mixed liquor is obtained after reacting 2h at a temperature of this, mixed liquor is dispersed with dispersion machine after ultrasonic 30min, controls turning for dispersion machine
Speed is 500r/min, jitter time 50min；
Step S4, it is transferred in Scattered Kettle, gelatin and essence is added, is warming up to 75 DEG C and continues to be dispersed with stirring, control dispersion
Speed is 2000r/min, jitter time 1h, and leather is made and protects film coating agent.
Comparative example 2
This comparative example replaces modified silicon oil compared with Example 1, with silicone oil, and preparation method is as follows:
Step S1, modified nitrocellulose lotion is added in the beaker equipped with dehydrated alcohol, 45 DEG C of heating water baths, at the uniform velocity
8% glacial acetic acid is added after stirring 25min, is warming up to 60 DEG C, stirs 5min, it is spare to make A liquid；
Step S2, silicone oil, deionized water are added in three-necked flask, 70 DEG C of heating water baths, magnetic agitation 30min is added
Polypropylene glycerol aether is warming up to 75 DEG C, and polyacrylic acid is added after keeping the temperature 2h, and at the uniform velocity stirring 15min, back flow reaction 1h makees B
Liquid；
Step S3, B liquid is poured into A liquid, at the uniform velocity stirring 5min, 10% sodium bicarbonate solution is added, is warming up to 50 DEG C,
Mixed liquor is obtained after reacting 2h at a temperature of this, mixed liquor is dispersed with dispersion machine after ultrasonic 30min, controls turning for dispersion machine
Speed is 500r/min, jitter time 50min；
Step S4, it is transferred in Scattered Kettle, gelatin and essence is added, is warming up to 75 DEG C and continues to be dispersed with stirring, control dispersion
Speed is 2000r/min, jitter time 1h, and leather is made and protects film coating agent.
Comparative example 3
This comparative example is a kind of leather protection film coating agent in market.
The glossiness and persistence of embodiment 1-4 and comparative example 1-3 are detected, test result is as follows shown in table 1；
Glossiness: according to GB/T9754-2007 " paint and varnish 20 °, 60 ° of colored paint paint film without metallic pigments and
The measurement of 85 ° of bright lusters " it is tested, a finished leather is taken, uniformly smears embodiment 1-4 and comparative example in leather surface
The leather of 1-3 preparation protects film coating agent, air-dries, glossiness of the re-test leather surface at 20 °, 60 ° and 85 °；
Persistence: colorfastness to rubbing test is carried out according to GB/T 16799-2008 " furniture leather ", takes a Zhang Chengpin skin
Leather protects film coating agent in the leather that leather surface uniformly smears embodiment 1-4 and comparative example 1-3 preparation, air-dries, carry out 500 times
Xerotripsis or 250 wet frictions, the colorfastness to rubbing after re-test glazing.
Table 1
From in upper table 1 it can be seen that embodiment 1-4 glossiness test in: its glossiness is between 53-57 at 20 °, 60 °
When its glossiness between 63-66, its glossiness is between 79-83 at 85 °；Comparative example 1-3 is in glossiness test: at 20 °
Between its glossiness 35-45, its glossiness is between 39-58 at 60 °, its glossiness is between 55-68 at 85 °；Embodiment 1-4
In persistence test: xerotripsis grade is 4-5 grades, and wet rubbing grade is 4-5 grades；Comparative example 1-3 is in persistence test: xerotripsis etc.
Grade is 2-3 grades, and wet rubbing grade is 2-3 grades.So leather prepared by the present invention protection film coating agent not only have excellent stabilization and
Heat resistance, and glossiness with higher, can satisfy the demand of people's daily life.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Above content is only citing made for the present invention and explanation, affiliated those skilled in the art are to being retouched
The specific embodiment stated does various modifications or additions or is substituted in a similar manner, and without departing from invention or surpasses
More range defined in the claims, is within the scope of protection of the invention.
Claims (8)
1. a kind of leather protects film coating agent, which is characterized in that be made of following raw material: 35-50 parts of modified cellulose nitrates
Plain lotion, 25-35 parts of modified silicon oils, 5-15 parts of thickeners, 3-8 parts of polyacrylic acid, 10-15 parts of defoaming agents, 8% ice of 12-18 part
Acetic acid, 10% sodium bicarbonate solution of 3-8 part, 3-10 parts of essence, 35-50 parts of dehydrated alcohols, 55-70 parts of deionized waters；
Leather protection film coating agent is made by the following method:
Step S1, modified nitrocellulose lotion is added in the beaker equipped with dehydrated alcohol, 45 DEG C of heating water baths at the uniform velocity stir
8% glacial acetic acid is added after 25min, is warming up to 60 DEG C, stirs 5min, it is spare to make A liquid；
Step S2, modified silicon oil, deionized water are added in three-necked flask, 70 DEG C of heating water baths, magnetic agitation 30min is added
Defoaming agent is warming up to 75 DEG C, and polyacrylic acid is added after keeping the temperature 2h, and at the uniform velocity stirring 15min, back flow reaction 1h makees B liquid；
Step S3, B liquid is poured into A liquid, at the uniform velocity stirring 5min, 10% sodium bicarbonate solution is added, is warming up to 50 DEG C, it is warm herein
Mixed liquor is obtained after the lower reaction 2h of degree, mixed liquor is dispersed with dispersion machine after ultrasonic 30min, the revolving speed for controlling dispersion machine is
500r/min, jitter time 50min；
Step S4, it is transferred in Scattered Kettle, thickener and essence is added, is warming up to 75 DEG C and continues to be dispersed with stirring, control dispersion speed
Degree is 2000r/min, jitter time 1h, and leather is made and protects film coating agent.
2. a kind of leather according to claim 1 protects film coating agent, which is characterized in that the modified nitrocellulose lotion
Be made of following raw material: 6-10 parts of nitrocellulose, 5-8 parts of alkyd resins, 3-8 parts of tributyl citrate, 2-5 parts poly-
Vinylpyrrolidone, 30-40 parts of diethylene glycol (DEG) alkyl ethers, 18-25 parts of acetone, 3-5 parts of sodium laurates.
3. a kind of leather according to claim 1 protects film coating agent, which is characterized in that the modified nitrocellulose lotion
It is made by the following method:
(1) nitrocellulose and acetone are added in three-necked flask, it is sweet to be added two after nitrocellulose dissolution at the uniform velocity stirring
Alcohol alkyl ether, 50 DEG C of heating water baths simultaneously stir 2h with the revolving speed of 120r/min, tributyl citrate and alkyd resin, heating are added
To 70 DEG C, at the uniform velocity stirring 30min is added polyvinylpyrrolidone, continues to stir 15min, mixed emulsion A is made, is transferred to burning
It is spare in cup；
(2) sodium laurate and deionized water are added in conical flask, lotion B is obtained with the revolving speed stirring 45min of 180r/min, with
The revolving speed of 480r/min carries out magnetic agitation to mixed emulsion A, is heated to 55 DEG C, and lotion B is added in mixed emulsion A,
Deionized water is added until forming oil-in-water emulsion, modified nitrocellulose lotion is made.
4. a kind of leather according to claim 1 protects film coating agent, which is characterized in that the modified silicon oil is by following weight
Part raw material is made: 12-18 parts of hydroquinones, 5-15 parts of mellitic acids, 35-50 parts of dehydrated alcohols, 2-6 parts of cinnamic acids, and 10-15 parts
Containing hydrogen silicone oil, 8-15 parts of glycol dimethyl ethers.
5. a kind of leather according to claim 1 protects film coating agent, which is characterized in that the modified silicon oil is by the following method
It is made:
(1) glycol dimethyl ether and hydroquinone are added in three-necked flask, the anhydrous second of half is added after at the uniform velocity stirring 10min
Alcohol is warming up to 75 DEG C, at the uniform velocity stirring 15min, and cinnamic acid is added, is stirred with the revolving speed of 180r/min and is warming up to 110 DEG C,
Every 30min detects an acid value after reacting 2h at this temperature, until the adjusting of 10% sodium hydroxide solution is added dropwise in acid value after stablizing
PH, until pH=7, liquid separation, washing, dry obtained mixed liquor；
(2) mixed liquor made from step (1) is transferred in four-hole boiling flask, the other half dehydrated alcohol is added, at the uniform velocity stirs and rises
Temperature is added mellitic acid after keeping the temperature 15min, is warming up to 80 DEG C to 65 DEG C, is passed through nitrogen discharge air, containing hydrogen silicone oil is added,
5h is reacted at a temperature of this and tests hydrogen content, and solvent is removed in vacuum when hydrogen content is stablized, modified silicon oil is made.
6. a kind of leather according to claim 1 protects film coating agent, which is characterized in that the thickener be starch, gelatin,
One or more of sodium alginate.
7. a kind of leather according to claim 1 protects film coating agent, which is characterized in that the defoaming agent is poly- for polyoxyethylene
One or more of oxypropylene pentaerythrite ether, polyoxyethylene polyoxy propyl alcohol amidogen ether, polypropylene glycerol aether.
8. a kind of preparation method of leather protection film coating agent, which comprises the steps of:
Step S1, modified nitrocellulose lotion is added in the beaker equipped with dehydrated alcohol, 45 DEG C of heating water baths at the uniform velocity stir
8% glacial acetic acid is added after 25min, is warming up to 60 DEG C, stirs 5min, it is spare to make A liquid；
Step S2, modified silicon oil, deionized water are added in three-necked flask, 70 DEG C of heating water baths, magnetic agitation 30min is added
Defoaming agent is warming up to 75 DEG C, and polyacrylic acid is added after keeping the temperature 2h, and at the uniform velocity stirring 15min, back flow reaction 1h makees B liquid；
Step S3, B liquid is poured into A liquid, at the uniform velocity stirring 5min, 10% sodium bicarbonate solution is added, is warming up to 50 DEG C, it is warm herein
Mixed liquor is obtained after the lower reaction 2h of degree, mixed liquor is dispersed with dispersion machine after ultrasonic 30min, the revolving speed for controlling dispersion machine is
500r/min, jitter time 50min；
Step S4, it is transferred in Scattered Kettle, thickener and essence is added, is warming up to 75 DEG C and continues to be dispersed with stirring, control dispersion speed
Degree is 2000r/min, jitter time 1h, and leather is made and protects film coating agent.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115304990A (en) * | 2022-09-07 | 2022-11-08 | 广州市佐力新材料科技有限公司 | Leather coating agent with lasting gloss and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103360954A (en) * | 2012-04-11 | 2013-10-23 | 尹永强 | Novel lustering agent for leather care |
| CN103666286A (en) * | 2013-11-22 | 2014-03-26 | 南通信一服饰有限公司 | Caring and polishing agent for leather clothing |
-
2019
- 2019-04-02 CN CN201910262552.2A patent/CN109811093B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103360954A (en) * | 2012-04-11 | 2013-10-23 | 尹永强 | Novel lustering agent for leather care |
| CN103666286A (en) * | 2013-11-22 | 2014-03-26 | 南通信一服饰有限公司 | Caring and polishing agent for leather clothing |
Non-Patent Citations (1)
| Title |
|---|
| 崔健: "DLG-1皮革光亮剂的合成", 《皮革科技》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115304990A (en) * | 2022-09-07 | 2022-11-08 | 广州市佐力新材料科技有限公司 | Leather coating agent with lasting gloss and preparation method thereof |
| CN115304990B (en) * | 2022-09-07 | 2023-12-08 | 广州市佐力新材料科技有限公司 | Leather coating agent with lasting luster and preparation method thereof |
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Effective date of registration: 20211220 Address after: 276000 Jinke Linyi Intelligent Manufacturing Technology City, No. 2 Zhengda Road, Fenghuangling street, Hedong District, Linyi City, Shandong Province Applicant after: Zhongwo Biotechnology (Linyi) Co.,Ltd. Address before: 510000 No. 1, Xisong North Street, Hebian village, Jiahe street, Baiyun District, Guangzhou City, Guangdong Province Applicant before: GUANGZHOU KENDALL LEATHERWARE Co.,Ltd. |
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