CN114960209A - After-finishing liquid for sofa cloth and preparation method thereof - Google Patents
After-finishing liquid for sofa cloth and preparation method thereof Download PDFInfo
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- CN114960209A CN114960209A CN202110497246.4A CN202110497246A CN114960209A CN 114960209 A CN114960209 A CN 114960209A CN 202110497246 A CN202110497246 A CN 202110497246A CN 114960209 A CN114960209 A CN 114960209A
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- diisocyanate
- sofa
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- polyurethane resin
- organic silicon
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
- D06M15/568—Reaction products of isocyanates with polyethers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/50—Modified hand or grip properties; Softening compositions
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses an after-finishing liquid for sofa cloth, which comprises the following components in parts by weight: 45-48 parts of organic silicon modified polyurethane resin, 2.5-5 parts of negative oxygen ion powder, 0.5-1.5 parts of adhesive, 0.5-1.5 parts of thickening agent and 40-60 parts of water. The soft finishing and the release of negative oxygen ions of the sofa are realized simultaneously, and the product is a water-based system, so that the sofa is good in safety and more environment-friendly.
Description
Technical Field
The invention relates to the technical field of after-finishing of cloth, in particular to a softening agent for after-finishing of sofa cloth and a preparation method thereof.
Background
The sofa becomes the necessary furniture in daily life and work, the sofa cloth is a general name of various main body coverings used in the sofa manufacturing process, and the functional sofa cloth becomes an important requirement of people in the daily use process. The sofa cloth is rough in texture and not soft enough, and in order to improve the comfort level in use, after-finishing liquid is usually adopted in the after-finishing process to improve the hand feeling of the cloth, so that the sofa cloth has certain softness.
Most of the existing after-finishing liquid adopts a cationic softener, has single function, only has certain soft smoothness of cloth, can cause pollution to the environment when in use, and has poor safety.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the after-finishing liquid for the sofa cloth, which simultaneously realizes the soft finishing of the sofa and the release of negative oxygen ions, and the product is a water-based system, so that the safety is good, and the after-finishing liquid is more environment-friendly; therefore, the invention also provides a preparation method of the after-finishing liquid for sofa cloth.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a first aspect of afterfinish liquid for sofa cloth, which comprises the following components in parts by weight:
45-48 parts of organic silicon modified polyurethane resin, 2.5-5 parts of negative oxygen ion powder, 0.5-1.5 parts of adhesive, 0.5-1.5 parts of thickening agent and 40-60 parts of water.
Negative oxygen ions are a negatively charged gas ion in air. The negative oxygen ions transport negative charges to surrounding bacteria, dust, harmful gases and the like, and the charges are combined with the particles or gases to form balls to sink, so that the aim of purifying air is fulfilled, and the healthy environment is improved. By adding the negative oxygen ion powder into the formula, the sofa fabric can continuously release negative oxygen ions to the living environment when in use, so that the physiological activities of living human bodies are strengthened, and the sofa fabric has the function of strengthening the health.
The organic silicon modified polyurethane resin is prepared by reacting diisocyanate, polyether, an organic silicon monomer, a chain extender and a catalyst.
The specific preparation process of the organic silicon modified polyurethane resin comprises the following steps:
(1) stirring and mixing diisocyanate, polyether and organic silicon monomer, and heating to 70-80 ℃ for reaction to obtain prepolymer mixed solution, wherein the weight ratio of the diisocyanate to the polyether to the organic silicon monomer is 1: (0.5-1.2): (12-25);
(2) adding a chain extender and a catalyst into the prepolymer mixed solution prepared in the step (1), and continuously stirring for reacting for 1-3h, wherein the weight ratio of the chain extender to the diisocyanate is (0.08-0.2): 1, the weight ratio of the catalyst to the diisocyanate is (0.03-0.1): 1;
(3) and (3) cooling the mixed solution prepared after the reaction in the step (2), and adding alkali liquor to adjust the pH value to be neutral to obtain the organic silicon modified polyurethane resin.
Wherein the diisocyanate is isophorone diisocyanate, hexamethyl diisocyanate, toluene diisocyanate or diphenylmethane diisocyanate. Isophorone diisocyanate is preferred.
The chain extender is dimethylolpropionic acid, and the catalyst is an organic tin catalyst.
Wherein the organic silicon monomer is hydroxypropyl-terminated polyoxosilane.
Wherein the polyether has a number average molecular weight of 200-500.
Wherein the adhesive is adhesive TF320, and the thickener is thickener TF312 or TF 315.
The second aspect of the invention provides a preparation method of the after-finishing liquor for sofa cloth, which comprises the following steps:
s1, weighing the organosilicon modified polyurethane resin, the negative oxygen ion powder, the adhesive, the thickening agent and water according to the formula ratio;
s2, uniformly stirring the organic silicon modified polyurethane resin, the negative oxygen ion powder and water to obtain a mixed solution;
s3, adding the adhesive and the thickening agent into the mixed liquid prepared in the step S2, and continuously stirring and mixing to obtain the after-finishing liquid for the sofa cloth.
Compared with the prior art, the invention has the following beneficial effects:
the after-finishing liquid is prepared by compounding the water-based organic silicon modified polyurethane resin and the negative oxygen ion powder, and adding a certain thickening agent and an adhesive into the after-finishing liquid, so that the sofa cloth is softened and has the function of efficiently and continuously releasing the negative oxygen ions, and the whole product is a water-based system, is more environment-friendly and is non-toxic and harmless to a human body; the organic silicon modified polyurethane resin has good adhesion effect of the polyurethane resin to the sofa fabric, and also has soft and smooth effect of an organic silicon chain segment, and after the organic silicon modified polyurethane resin is used as a main resin to be coated on the surface of the fabric to form a film, the surface of the fabric has good flexibility, and meanwhile, the negative oxygen ion powder can be firmly adhered to the surface of the fabric, and when the sofa fabric is used, the negative oxygen ion can be continuously released; the adhesive increases the crosslinking of the main resin, so that the adhesion between a film layer formed by the product and the surface of the cloth is increased, and the adhesion firmness of the negative oxygen ion powder on the surface of the cloth is improved; the thickener increases the viscosity of the finish, thereby increasing the coating properties of the finish.
Detailed Description
Example 1
An after-finishing liquid for sofa cloth comprises the following components:
45 parts of organic silicon modified polyurethane resin, 2.5 parts of negative oxygen ion powder, 1 part of adhesive (adhesive TF320), 1.5 parts of thickening agent (thickening agent TF312) and 40 parts of water.
The specific preparation process of the organic silicon modified polyurethane resin comprises the following steps:
(1) stirring and mixing diisocyanate, polyether and organic silicon monomer, and heating to 70 ℃ for reaction to obtain a prepolymer mixed solution, wherein the weight ratio of the diisocyanate (hexamethyl diisocyanate), the polyether (number average molecular weight 200-500) and the organic silicon monomer (terminal hydroxypropyl polysiloxane) is 1: 1.2: 25;
(2) adding a chain extender (dimethylolpropionic acid) and a catalyst (organic tin catalyst) into the prepolymer mixed solution prepared in the step (1), and continuously stirring for reaction for 2 hours, wherein the weight ratio of the chain extender to diisocyanate is 0.16: 1, the weight ratio of the catalyst to the diisocyanate is 0.03: 1;
(3) and (3) cooling the mixed solution prepared after the reaction in the step (2), and adding alkali liquor (ammonia water) to adjust the pH value to be neutral to obtain the organic silicon modified polyurethane resin.
The preparation method of the after-finishing liquid for sofa fabric of the embodiment comprises the following steps:
s1, weighing the organosilicon modified polyurethane resin, the negative oxygen ion powder, the adhesive, the thickening agent and water according to the formula ratio;
s2, uniformly stirring the organic silicon modified polyurethane resin, the negative oxygen ion powder and water to obtain a mixed solution;
s3, adding the adhesive and the thickening agent into the mixed liquid prepared in the step S2, and continuously stirring and mixing to obtain the after-finishing liquid for the sofa cloth.
Example 2
An after-finishing liquid for sofa cloth comprises the following components:
46.5 parts of organic silicon modified polyurethane resin, 3.5 parts of negative oxygen ion powder, 1.5 parts of adhesive (adhesive TF320), 0.5 part of thickening agent (thickening agent TF315) and 50 parts of water.
The specific preparation process of the organic silicon modified polyurethane resin comprises the following steps:
(1) stirring and mixing diisocyanate, polyether and an organic silicon monomer, and heating to 72 ℃ for reaction to obtain a prepolymer mixed solution, wherein the weight ratio of the diisocyanate (isophorone diisocyanate), the polyether (number average molecular weight is 200-500) and the organic silicon monomer (terminal hydroxypropyl polysiloxane) is 1: 0.8: 15;
(2) adding a chain extender (dimethylolpropionic acid) and a catalyst (organic tin catalyst) into the prepolymer mixed solution prepared in the step (1), and continuously stirring for reaction for 2 hours, wherein the weight ratio of the chain extender to diisocyanate is 0.08: 1, the weight ratio of catalyst to diisocyanate is 0.06: 1;
(3) and (3) cooling the mixed solution prepared after the reaction in the step (2), and adding alkali liquor (ammonia water) to adjust the pH value to be neutral to obtain the organic silicon modified polyurethane resin.
The preparation method of the after-finishing liquid for sofa cloth of this example is the same as that of example 1, and will not be described in detail.
Example 3
An after-finishing liquid for sofa cloth comprises the following components:
47 parts of organic silicon modified polyurethane resin, 4 parts of negative oxygen ion powder, 0.5 part of adhesive (adhesive TF320), 1 part of thickening agent (thickening agent TF312) and 60 parts of water.
The specific preparation process of the organic silicon modified polyurethane resin comprises the following steps:
(1) stirring and mixing diisocyanate, polyether and an organic silicon monomer, and heating to 80 ℃ for reaction to obtain a prepolymer mixed solution, wherein the weight ratio of the diisocyanate (isophorone diisocyanate), the polyether (number average molecular weight is 200-500) and the organic silicon monomer (terminal hydroxypropyl polysiloxane) is 1: 0.5: 20;
(2) adding a chain extender (dimethylolpropionic acid) and a catalyst (organic tin catalyst) into the prepolymer mixed solution prepared in the step (1), and continuously stirring for reaction for 1h, wherein the weight ratio of the chain extender to diisocyanate is 0.2: 1, the weight ratio of catalyst to diisocyanate is 0.08: 1;
(3) and (3) cooling the mixed solution prepared after the reaction in the step (2), and adding alkali liquor (ammonia water) to adjust the pH value to be neutral to obtain the organic silicon modified polyurethane resin.
The preparation method of the after-finishing liquid for sofa cloth of this example is the same as that of example 1, and will not be described in detail.
Example 4
An after-finishing liquid for sofa cloth comprises the following components:
48 parts of organic silicon modified polyurethane resin, 5 parts of negative oxygen ion powder, 0.5 part of adhesive (adhesive TF320), 0.5 part of thickening agent (thickening agent TF312) and 55 parts of water.
The specific preparation process of the organic silicon modified polyurethane resin comprises the following steps:
(1) stirring and mixing diisocyanate, polyether and an organic silicon monomer, and heating to 75 ℃ for reaction to obtain a prepolymer mixed solution, wherein the weight ratio of the diisocyanate (toluene diisocyanate), the polyether (number average molecular weight 200-: 1: 12;
(2) adding a chain extender (dimethylolpropionic acid) and a catalyst (organic tin catalyst) into the prepolymer mixed solution prepared in the step (1), and continuously stirring for reaction for 3 hours, wherein the weight ratio of the chain extender to diisocyanate is 0.1: 1, the weight ratio of catalyst to diisocyanate is 0.1: 1;
(3) and (3) cooling the mixed solution prepared after the reaction in the step (2), and adding alkali liquor (ammonia water) to adjust the pH value to be neutral to obtain the organic silicon modified polyurethane resin.
The preparation method of the after-finishing liquid for sofa cloth of this example is the same as that of example 1, and will not be described in detail.
Comparative example 1
Comparative example 1 is a comparative example of example 1, and comparative example 1 is different from example 1 in that: the amount of the silicone modified polyurethane resin added in comparative example 1 was 50 parts, and no negative oxygen ion powder was added in comparative example 1, and the remaining components and the preparation process were the same as those in example 1.
Comparative example 2
Comparative example 2 is a comparative example of example 1, and comparative example 2 is different from example 1 in that: in comparative example 2, no silicone-modified polyurethane resin was added, and the remaining components and the preparation process were the same as in example 1.
After-finishing treatment is carried out on the polyester sofa cloth by the finishing liquid prepared in the above examples 1-4, comparative example 1 and comparative example 2: when the finishing liquid is used for the after-finishing process of the polyester sofa cloth, the polyester sofa cloth to be processed is padded in the finishing liquid, the padding process is room-temperature twice-padding twice and the padding rate is 100%, the polyester sofa cloth is subjected to pre-drying (pre-drying at 100 ℃ for 5 minutes), baking (baking at 150 ℃ for 90 seconds) and curing (standing for 24 hours in an environment with the temperature of 20-25 ℃ and the relative humidity of 50-65%) to finish finishing, the polyester sofa cloth processed by the after-finishing process is subjected to stiffness and negative oxygen ion concentration tests, 10 samples are processed each time, then the average value of the test results is obtained, and the test results are shown in table 1.
The stiffness test adopts an LFY-207 automatic fabric stiffness tester and is carried out according to GB/T18318.1-2009; the negative oxygen ion concentration test was performed according to SN/T2558.2-2011.
TABLE 1
| Stiffness (cm) | Concentration of negative oxygen ions (pieces/cm) 2 ) | |
| Example 1 | 2.73 | 1200 |
| Example 2 | 2.70 | 1980 |
| Example 3 | 2.68 | 2360 |
| Example 4 | 2.65 | 2510 |
| Comparative example 1 | 2.60 | 0 |
| Comparative example 2 | 4.12 | 810 |
As can be seen from the test results in table 1, as the amount of the organic silicon modified polyurethane resin in the finishing liquid increases, the stiffness of the treated polyester sofa fabric decreases (i.e., the softness of the sofa fabric increases), the stiffness of the polyester sofa fabric treated by the finishing liquid in examples 1 to 4 of the present application is moderate (between 2.65 and 2.73), the polyester sofa fabric has good softness and still retains a certain setting effect, and through detection, negative oxygen ions are obviously generated around the polyester sofa fabric treated by the finishing liquid in examples 1 to 4, so as to achieve a good effect of improving the living environment; in the comparative example 1, the usage amount of the organic silicon modified polyurethane resin exceeds the proportion range, the stiffness of the treated polyester sofa fabric is continuously reduced (the softness is continuously improved), so that the softness of the sofa fabric is too high, the shaping effect is lost, and the using effect of the sofa fabric is influenced, and in addition, negative oxygen ion powder is not added in the comparative example 1, and at the moment, the fabric can not release negative oxygen ions through detection; in comparative example 2, the silicone modified polyurethane resin is not added, compared to example 1, the stiffness of the treated polyester sofa fabric is significantly improved (i.e., the softness of the sofa fabric is significantly reduced), and the concentration of negative oxygen ions released by the treated polyester sofa fabric is significantly reduced compared to example 1.
In conclusion: the after-finishing liquid is prepared by compounding the water-based organic silicon modified polyurethane resin and the negative oxygen ion powder, and adding a certain thickening agent and an adhesive into the after-finishing liquid, so that the sofa cloth is softened and has the function of efficiently and continuously releasing the negative oxygen ions, and the whole product is a water-based system, is more environment-friendly and is non-toxic and harmless to a human body; the organic silicon modified polyurethane resin has good adhesion effect of the polyurethane resin to the sofa fabric, and also has the effect of organic silicon continuous soft and smooth, and after the organic silicon modified polyurethane resin is used as main resin to be coated on the surface of the fabric to form a film, the fabric surface has good flexibility, and meanwhile, negative oxygen ion powder can be firmly adhered to the surface of the fabric, and when the sofa fabric is used, the negative oxygen ions can be continuously released.
The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.
Claims (9)
1. The after-finishing liquid for sofa cloth is characterized by comprising the following components in parts by weight:
45-48 parts of organic silicon modified polyurethane resin, 2.5-5 parts of negative oxygen ion powder, 0.5-1.5 parts of adhesive, 0.5-1.5 parts of thickening agent and 40-60 parts of water.
2. The after-finishing liquid for sofa cloth according to claim 1, wherein the organosilicon modified polyurethane resin is prepared by reacting diisocyanate, polyether, organosilicon monomer, chain extender and catalyst.
3. The after-finishing liquid for sofa fabric as claimed in claim 2, wherein the specific preparation process of the organosilicon modified polyurethane resin is as follows:
(1) stirring and mixing diisocyanate, polyether and organic silicon monomer, and heating to 70-80 ℃ for reaction to obtain prepolymer mixed solution, wherein the weight ratio of the diisocyanate to the polyether to the organic silicon monomer is 1: (0.5-1.2): (12-25);
(2) adding a chain extender and a catalyst into the prepolymer mixed solution prepared in the step (1), and continuously stirring for reacting for 1-3h, wherein the weight ratio of the chain extender to the diisocyanate is (0.08-0.2): 1, the weight ratio of the catalyst to the diisocyanate is (0.03-0.1): 1;
(3) and (3) cooling the mixed solution prepared after the reaction in the step (2), and adding alkali liquor to adjust the pH value to be neutral to obtain the organic silicon modified polyurethane resin.
4. The afterfinish for sofa cloth according to claim 3, wherein said diisocyanate is isophorone diisocyanate, hexamethyl diisocyanate, toluene diisocyanate or diphenylmethane diisocyanate.
5. The afterfinish for sofa fabric according to claim 3, wherein the chain extender is dimethylolpropionic acid.
6. The afterfinish for sofa fabric according to claim 3, wherein the silicone monomer is hydroxypropyl-terminated polyoxosilane.
7. The after-finishing liquid for sofa cloth according to claim 3, wherein the number average molecular weight of the polyether is 200-500.
8. The afterfinish for sofa fabric according to claim 1, wherein the binder is binder TF320, and the thickener is thickener TF312 or thickener TF 315.
9. The preparation method of the after-finishing liquid for sofa cloth according to claim 1, characterized by comprising the following steps:
s1, weighing the organosilicon modified polyurethane resin, the negative oxygen ion powder, the adhesive, the thickening agent and water according to the formula ratio;
s2, uniformly stirring the organic silicon modified polyurethane resin, the negative oxygen ion powder and water to obtain a mixed solution;
s3, adding the adhesive and the thickening agent into the mixed liquid prepared in the step S2, and continuously stirring and mixing to obtain the after-finishing liquid for the sofa cloth.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110497246.4A CN114960209A (en) | 2021-05-07 | 2021-05-07 | After-finishing liquid for sofa cloth and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110497246.4A CN114960209A (en) | 2021-05-07 | 2021-05-07 | After-finishing liquid for sofa cloth and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174167A (en) * | 2011-02-17 | 2011-09-07 | 陈华 | Organic silicon modified polyurethane resin for synthetic leather and preparation method thereof |
| CN102898613A (en) * | 2012-11-09 | 2013-01-30 | 陕西邦希化工有限公司 | Method for preparing water-soluble organosilicone modified polyurethane resin |
| CN106811959A (en) * | 2017-01-17 | 2017-06-09 | 常熟市新光毛条处理有限公司 | A kind of anion finishing technique of Australia's wool top |
| CN110965349A (en) * | 2019-10-28 | 2020-04-07 | 杭州芮缦博布艺有限公司 | Waterproof soft finishing agent for polyester sofa cloth, preparation method and use method |
| CN111155322A (en) * | 2020-01-13 | 2020-05-15 | 华懋（厦门）特种材料有限公司 | Manufacturing process of negative oxygen ion fabric |
-
2021
- 2021-05-07 CN CN202110497246.4A patent/CN114960209A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174167A (en) * | 2011-02-17 | 2011-09-07 | 陈华 | Organic silicon modified polyurethane resin for synthetic leather and preparation method thereof |
| CN102898613A (en) * | 2012-11-09 | 2013-01-30 | 陕西邦希化工有限公司 | Method for preparing water-soluble organosilicone modified polyurethane resin |
| CN106811959A (en) * | 2017-01-17 | 2017-06-09 | 常熟市新光毛条处理有限公司 | A kind of anion finishing technique of Australia's wool top |
| CN110965349A (en) * | 2019-10-28 | 2020-04-07 | 杭州芮缦博布艺有限公司 | Waterproof soft finishing agent for polyester sofa cloth, preparation method and use method |
| CN111155322A (en) * | 2020-01-13 | 2020-05-15 | 华懋（厦门）特种材料有限公司 | Manufacturing process of negative oxygen ion fabric |
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