CN104987441B - A kind of preparation method of formaldehydeless lining cloth glue and formaldehydeless lining cloth - Google Patents
A kind of preparation method of formaldehydeless lining cloth glue and formaldehydeless lining cloth Download PDFInfo
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- CN104987441B CN104987441B CN201510394126.6A CN201510394126A CN104987441B CN 104987441 B CN104987441 B CN 104987441B CN 201510394126 A CN201510394126 A CN 201510394126A CN 104987441 B CN104987441 B CN 104987441B
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Abstract
The invention discloses the preparation methods of a kind of formaldehydeless lining cloth glue and formaldehydeless lining cloth, the preparation method of the glue is the following steps are included: take acrylamide, melamine and glyoxal mixing, it is stirred to react, add methanol, continue to be stirred to react, borax is added in end of reaction, is completely dissolved borax, is cooled to room temperature to obtain the final product.The preparation method of formaldehydeless lining cloth glue of the invention, using acrylamide, melamine, glyoxal and methanol, free radical lock reaction is utilized in the design of lining cloth glue, cooperates condensation reaction, the fast finishing for realizing formaldehydeless lining cloth is successfully prepared formaldehydeless lining cloth glue；The lining cloth glue synthesized not release formaldehyde can replace other gradually lining cloth glue of release formaldehyde in use, avoid the release of formaldehyde, be conducive to the health of consumer.It is good with the lining cloth stiffness of glue arrangement preparation, pincher elasticity, it is with good performance, the glue of lining cloth containing formaldehyde can be substituted.
Description
Technical field
The present invention relates to textile engineering technical field, more particularly to a kind of formaldehydeless lining cloth glue and formaldehydeless lining cloth
Preparation method.
Background technique
Dress lining cloth is one of the important auxiliary material in clothing making, has the function of moulding, guarantor's type, reinforcing in clothes,
And the lasting lines of clothes, well-pressed style can be assigned.Dress lining cloth has Maoma to serve as a contrast (hair interlining, hair-cloth), plastic lining (stiffened cloth
Lining, celluloid lining), resin interlining and adhesive lining etc..First two almost no longer uses now because there are many disadvantages.It is main at present
To use latter two lining cloth.
Lining cloth currently on the market mainly uses urea cyanaldehyde resin to prepare, and stiffness, pincher elasticity are preferable, and preparation is held
Easily, at low cost, so using extensive.But it is easy to produce formaldehyde, and formaldehyde is carcinogenic and pungent, to consumer health
It has an impact.In consideration of it, developed country limits this legislation, such as Deko-Tex standard 100 in Europe.China was from 2003 1
The moon rises, and restriction (GB 18401-2001) has also been made to the content of formaldehyde of textile, and enforce.First is commonly used in resin
Aldehyde be because formaldehyde react with amine substance generate methylol again with methanol etherification generation-N-CH2-OCH3 have it is very high instead
Answer activity, can gradually be condensed to form macromolecule in short tens seconds to a few minutes, thus when preparing lining cloth formaldehyde be difficult by
Replace.
In research work, it is mainly concentrated on the problem of reducing lining cloth content of formaldehyde, is such as added in finishing agent
Formaldehyde catching agent reacts the methylol to be formed with amide groups with various etherified formaldehyde to reduce the Form aldehyde release of resin finishing agent
Amount, or suitable catalyst is added in finishing agent and reduces burst size of methanal etc. by extent of reaction raising.These researchs have
Burst size of methanal is reduced to effect, but still has Form aldehyde release.Consumer both pursued wear fashion, also pursue wear healthy the present
It, develops formaldehydeless lining cloth glue with important application value.
Summary of the invention
One of the objects of the present invention is to provide the preparation method and lining cloth preparation process of a kind of formaldehydeless lining cloth glue,
Formaldehyde is not used in glue preparation process, does not damage producer's health；The lining cloth of preparation has good stiffness, whiteness, folding
Wrinkle elasticity, will not generate formaldehyde.
The present invention provides a kind of preparation method of formaldehydeless lining cloth glue, comprising the following steps: takes acrylamide, melamine
Amine and glyoxal mixing, are stirred to react, add methanol, continue to be stirred to react, and borax is added in end of reaction, keeps borax completely molten
Solution, is cooled to room temperature to obtain the final product.
Further, acrylamide, melamine and glyoxal mixing are taken, adjusts pH to 8-9,65 DEG C of constant temperature are stirred to react
15min adds methanol, adjusts pH to 5.5, continues to be stirred to react 10min, end of reaction is added borax, keeps borax completely molten
Solution, is cooled to room temperature to obtain the final product.
Further, the acrylamide and melamine mass ratio are 5:1, and the glyoxal concentration is 165g/L.
The present invention also provides a kind of preparation methods of formaldehydeless lining cloth, include the following steps, take glue that catalyst is added, will
Terylene yarn woven fabric, which is put into the glue that catalyst is added, to be impregnated, and impregnated terylene yarn woven fabric roll compacting is taken, and roll compacting is good
Terylene yarn woven fabric bakes, after the completion of baking to obtain the final product.
Further, the glue is prepared by the preparation method of above-mentioned formaldehydeless lining cloth glue.
Further, the catalyst includes ammonium persulfate and zinc nitrate, and the mass ratio of ammonium persulfate and zinc nitrate is 1:
5。
Further, the glue concentration is about 480g/L, and ammonium persulfate concentrations 2g/L, nitric acid zinc concentration is 10g/L.
Further, the dip time is 2min.
Further, the roll compacting rate of the roll compacting is 90%-100%.
Further, the baking conditions are 150 DEG C of baking 2min.
Further, described bake is baked using automatic sizing dryer.
The present invention provides a kind of formaldehydeless lining cloth again, and the bending resistance length of the formaldehydeless lining cloth is 153.5-160.3mm, white
Degree is 75.2-78.2%, and the anxious recovery angle that plays is 151.4-161.0 °, and delaying bullet recovery angle is 196.2-204.1 °.
Further, the formaldehydeless lining cloth is arrived by prepared by the preparation method of above-mentioned formaldehydeless lining cloth.
The present invention uses acrylamide, melamine and glyoxal reaction, generates the monomeric compound containing-N-CH-OH,
Then it is reacted to be formed containing-N-CH-OCH to be etherified with methanol3Monomer to get arrive lining cloth glue.In the technique for preparing lining cloth
In, fabric is impregnated in the glue for being added to catalyst, roll compacting, baking is to get to formaldehydeless lining cloth.In baking process
In, alkene generates free radicals polymerization, forms high molecular main chain, N-CH-OCH3Gradually condensation reaction occurs between group, is formed
T-type macromolecule, so, lining cloth hardness is high, elasticity is good for fold.
The principle of the present invention is as follows: contained by urine cyanaldehyde resin-N-CH2- OCH group is gradually condensed with very high
Reactivity can be condensed to form T-type macromolecule within the very short time.Other groups are difficult with condensation reaction short
T-type macromolecule is formed in time.On the one hand acrylamide is utilized in this patent can be very fast under catalyst and hot conditions
Free radical polymerization occurs fastly, forms high molecular main chain, on the other hand, glyoxal and acrylamide, glyoxal and melamine
Amine reaction simultaneously by etherificate generate-N-CH-OCH3Between can generate condensation reaction, form T-type macromolecule.Although using second
Dialdehyde synthesis-N-CH-OCH3Condensation reaction between group is not so good as with formaldehyde generation-N-CH2-OCH3Contracting between group
Reaction speed is closed, still, due to introducing the Raolical polymerizable of alkene, the reaction speed is very fast, can quickly be formed
High molecular main chain, glyoxal synthesis-N-CH-OCH3Between condensation reaction be only used for forming T-type macromolecule, so, i.e.,
Make the activity for gradually contracting and reacting be not it is very high, can be prepared by that stiffness is high, the preferable lining cloth of fold elasticity.In short, this hair
Raolical polymerizable and gradually condensation reaction are introduced in bright, can quickly prepare formaldehydeless lining cloth.
It is as follows that glue prepares reaction equation:
It is as follows that lining cloth prepares reaction equation:
The beneficial effects of the present invention are: the preparation method of formaldehydeless lining cloth glue of the invention uses acrylamide, three
Poly cyanamid, glyoxal and methanol utilize free radical lock reaction in the design of lining cloth glue, cooperate condensation reaction, realize nothing
The fast finishing of formaldehyde lining cloth is successfully prepared formaldehydeless lining cloth glue；The lining cloth glue synthesized not release formaldehyde, Neng Goudai
For other gradually lining cloth glue of release formaldehyde in use, the release of formaldehyde is avoided, the health of consumer is conducive to.
It is good with the lining cloth stiffness of glue arrangement preparation, pincher elasticity, it is with good performance, the glue of lining cloth containing formaldehyde can be substituted
Water.
Specific embodiment
Below in conjunction with specific embodiment the present invention is described in detail.It should be noted that skill described in following embodiments
The combination of art feature or technical characteristic is not construed as isolated, they can be combined with each other to reaching better
Technical effect.
Embodiment 1:
Under room temperature, 74.8g acrylamide, 14.96g melamine, 65mL mass concentration 40% are added in conical flask
Glyoxal (glyoxal quality is 33.02g, and concentration is about 165g/L), adjusts pH to 8-9 with triethanolamine, is put into water bath with thermostatic control
Pot, water bath temperature are set as 65 DEG C, are stirred to react 15min, add 50mL methanol, with sulphur acid for adjusting pH to 5.5, continue to stir
Reaction 10min is mixed, takes out and 0.2g borax is added, dissolution completely, is cooled to room temperature and saves backup, glue concentration is about 480g/L.
Catalyst is added in configured glue, the catalyst includes the ammonium persulfate of 0.4g and the zinc nitrate of 2g, ammonium persulfate
Concentration is about 2g/L, and nitric acid zinc concentration is about 10g/L.The terylene yarn woven fabric that quality is 20g is put into glue and impregnates 2min, is taken
Fabric, is then put into automatic forming drier and bakes 2min by fabric padding machine roll compacting out, roll compacting rate 95% or so, bakes temperature
Degree is 150 DEG C.Taking-up fabric has been baked, formaldehydeless lining cloth can be obtained.The bending resistance length of lining cloth is 160.3mm, and whiteness is
77.1%, the anxious recovery angle that plays is 151.4 °, and delaying bullet recovery angle is 196.2 °.
Embodiment 2:
Under room temperature, in conical flask be added 59.8g acrylamide, 12g melamine, 52mL mass concentration 40% second two
Aldehyde (glyoxal quality is 26.42g, and concentration is about 165g/L), adjusts pH to 8-9 with triethanolamine, is put into thermostat water bath, water
Bath temperature setting is 65 DEG C, is stirred to react 15min, adds 40mL methanol, and with sulphur acid for adjusting pH to 5.5, it is anti-to continue stirring
10min is answered, takes out and 0.2g borax is added, dissolution completely, is cooled to room temperature and saves backup, glue concentration is about 480g/L.Matching
Catalyst is added in the glue set, the catalyst includes the ammonium persulfate of 0.32g and the zinc nitrate of 1.6g.It is by quality
The terylene yarn woven fabric of 15g, which is put into glue, impregnates 2min, takes out fabric padding machine roll compacting, then roll compacting rate 90% or so will knit
Object, which is put into automatic forming drier, bakes 2min, and stoving temperature is 150 DEG C.Taking-up fabric has been baked, can be obtained formaldehydeless
Lining cloth.The bending resistance length of lining cloth is 158.1mm, and whiteness 77.7%, the anxious recovery angle that plays is 155.1 °, and the slow recovery angle that plays is
200.2°。
Embodiment 3:
Under room temperature, 112.2g acrylamide, 22.5g melamine, 97.5mL mass concentration 40% are added in conical flask
Glyoxal (glyoxal quality be 49.53g, concentration is about 165g/L), adjust pH to 8-9 with triethanolamine, be put into thermostatted water
Bath, water bath temperature are set as 65 DEG C, are stirred to react 15min, add 75mL methanol, with sulphur acid for adjusting pH to 5.5, continue
It is stirred to react 10min, takes out and 0.2g borax is added, dissolution completely, is cooled to room temperature and saves backup, glue concentration is about 480g/
L.Catalyst is added in configured glue, the catalyst includes the ammonium persulfate of 0.6g and the zinc nitrate of 3g.By quality
It is put into glue for the terylene yarn woven fabric of 30g and impregnates 2min, take out fabric padding machine roll compacting, then roll compacting rate 100% or so will
Fabric, which is put into automatic forming drier, bakes 2min, and stoving temperature is respectively 150 DEG C.Taking-up fabric has been baked, can be obtained
Formaldehydeless lining cloth.The bending resistance length of lining cloth is 153.5mm, and whiteness 75.2%, the anxious recovery angle that plays is 161.0 °, delays and plays recovery angle
It is 203.1 °.
Embodiment 4:
Under room temperature, 89.8g acrylamide, 18.0g melamine, 40% second two of 78mL mass concentration are added in conical flask
Aldehyde (glyoxal quality is 39.62g, and concentration is about 165g/L), adjusts pH to 8-9 with triethanolamine, is put into thermostat water bath, water
Bath temperature setting is 65 DEG C, is stirred to react 15min, adds 60mL methanol, and with sulphur acid for adjusting pH to 5.5, it is anti-to continue stirring
10min is answered, takes out and 0.2g borax is added, dissolution completely, is cooled to room temperature and saves backup, glue concentration is about 480g/L.Matching
Catalyst is added in the glue set, the catalyst includes the ammonium persulfate of 0.48g and the zinc nitrate of 2.4g.It is by quality
The terylene yarn woven fabric of 16g, which is put into glue, impregnates 2min, takes out fabric padding machine roll compacting, then roll compacting rate 95% or so will knit
Object, which is put into automatic forming drier, bakes 2min, and stoving temperature is respectively 150 DEG C.Taking-up fabric has been baked, nothing can be obtained
Formaldehyde lining cloth.The bending resistance length of lining cloth is 155.8mm, and whiteness 78.2%, the anxious recovery angle that plays is 155.4 °, and the slow recovery angle that plays is
204.1°。
Embodiment 5:
Under room temperature, it is 40% that 104.7g acrylamide, 21.0g melamine, 91mL mass concentration are added in conical flask
Glyoxal (glyoxal quality be 46.23g, concentration is about 165g/L), adjust pH to 8-9 with triethanolamine, be put into thermostatted water
Bath, water bath temperature are set as 65 DEG C, are stirred to react 15min, add 70mL methanol, with sulphur acid for adjusting pH to 5.5, continue
It is stirred to react 10min, takes out and a small amount of borax is added, dissolution completely, is cooled to room temperature and saves backup, glue concentration is about 480g/
L.Catalyst is added in configured glue, the catalyst includes the ammonium persulfate of 0.56g and the zinc nitrate of 2.8g.By matter
Amount is put into glue for the terylene yarn woven fabric of 18g impregnates 2min, taking-up fabric padding machine roll compacting, roll compacting rate 95% or so, then
Fabric is put into automatic forming drier and bakes 2min, stoving temperature is respectively 150 DEG C.Taking-up fabric has been baked, can have been obtained
To formaldehydeless lining cloth.The bending resistance length of lining cloth is 155.2mm, and whiteness 78.1%, the anxious recovery angle that plays is 155.7 °, slow to rebound again
Angle is 202.4 °.
The preparation method of formaldehydeless lining cloth glue of the invention, using acrylamide, melamine, glyoxal and methanol,
Free radical lock reaction is utilized in the design of lining cloth glue, cooperates condensation reaction, realizes the fast finishing of formaldehydeless lining cloth, at
Function is prepared for formaldehydeless lining cloth glue；The lining cloth glue synthesized not release formaldehyde, can replace it is other in use by
The gradually lining cloth glue of release formaldehyde, avoids the release of formaldehyde, is conducive to the health of consumer.The lining of preparation is arranged with the glue
Cloth stiffness, pincher elasticity are good, with good performance, can substitute the glue of lining cloth containing formaldehyde.
Although having been presented for some embodiments of the present invention herein, it will be appreciated by those of skill in the art that
Without departing from the spirit of the invention, the embodiments herein can be changed.Above-described embodiment is only exemplary, no
It should be using the embodiments herein as the limit of interest field of the present invention.
Claims (8)
1. a kind of preparation method of formaldehydeless lining cloth glue, which comprises the following steps: take acrylamide, melamine
Amine and glyoxal mixing, are stirred to react, add methanol, continue to be stirred to react, and borax is added in end of reaction, keeps borax completely molten
Solution, is cooled to room temperature to obtain the final product.
2. the preparation method of formaldehydeless lining cloth glue as described in claim 1, which comprises the following steps: take third
Acrylamide, melamine and glyoxal mixing, adjust pH to 8-9, and 65 DEG C of constant temperature are stirred to react 15min, add methanol, adjust
PH to 5.5 continues to be stirred to react 10min, and end of reaction is added borax, is completely dissolved borax, is cooled to room temperature to obtain the final product.
3. such as the preparation method of the described in any item formaldehydeless lining cloth glue of claims 1 or 2, which is characterized in that the propylene
Amide and melamine mass ratio are 5:1, and the glyoxal concentration is 165g/L.
4. a kind of preparation method of formaldehydeless lining cloth, which is characterized in that include the following steps, takes glue that catalyst is added, it is described
Glue is formaldehydeless lining cloth glue made from the described in any item preparation methods of claim 1-3, and terylene yarn woven fabric is put into institute
It states and is impregnated in the glue that catalyst is added, impregnated terylene yarn woven fabric roll compacting is taken out, by the good terylene yarn woven fabric of roll compacting
It bakes, after the completion of baking to obtain the final product.
5. the preparation method of formaldehydeless lining cloth as claimed in claim 4, which is characterized in that the catalyst includes ammonium persulfate
And zinc nitrate, the mass ratio of ammonium persulfate and zinc nitrate are 1:5.
6. the preparation method of formaldehydeless lining cloth as claimed in claim 4, which is characterized in that the roll compacting rate of the roll compacting is
90%-100%.
7. the preparation method of formaldehydeless lining cloth as claimed in claim 4, which is characterized in that the dip time is 2min.
8. the preparation method of formaldehydeless lining cloth as claimed in claim 4, which is characterized in that the baking conditions are 150 DEG C of bakings
Roast 2min.
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| CN112981974A (en) * | 2021-04-02 | 2021-06-18 | 南通衣依衬布有限公司 | Zero-formaldehyde antibacterial gown lining cloth |
| CN117736390A (en) * | 2024-01-05 | 2024-03-22 | 西南林业大学 | N-methylolacrylamide-glyoxal-urea copolycondensation resin and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4199643A (en) * | 1977-11-03 | 1980-04-22 | Rohm And Haas Company | Water-insoluble copolymers containing amide-polyaldehyde thermosettable system |
| CN101434685A (en) * | 2008-12-16 | 2009-05-20 | 华明扬 | Process for synthesizing non-formaldehyde textile easy-care finish resin |
| CN101451330A (en) * | 2007-12-05 | 2009-06-10 | 杭州杭化播磨造纸化学品有限公司 | Corrugated paper plate water resistant reinforcing agent and preparation process thereof and use |
| CN101956322A (en) * | 2010-09-17 | 2011-01-26 | 四川省纺织科学研究院 | Formaldehydeless permanent press finishing agent for fabric and preparation method and application thereof |
| CN102838956A (en) * | 2012-07-04 | 2012-12-26 | 湖北省宏源药业有限公司 | Environment-friendly urea resin adhesive and preparation method thereof |
-
2015
- 2015-07-07 CN CN201510394126.6A patent/CN104987441B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4199643A (en) * | 1977-11-03 | 1980-04-22 | Rohm And Haas Company | Water-insoluble copolymers containing amide-polyaldehyde thermosettable system |
| CN101451330A (en) * | 2007-12-05 | 2009-06-10 | 杭州杭化播磨造纸化学品有限公司 | Corrugated paper plate water resistant reinforcing agent and preparation process thereof and use |
| CN101434685A (en) * | 2008-12-16 | 2009-05-20 | 华明扬 | Process for synthesizing non-formaldehyde textile easy-care finish resin |
| CN101956322A (en) * | 2010-09-17 | 2011-01-26 | 四川省纺织科学研究院 | Formaldehydeless permanent press finishing agent for fabric and preparation method and application thereof |
| CN102838956A (en) * | 2012-07-04 | 2012-12-26 | 湖北省宏源药业有限公司 | Environment-friendly urea resin adhesive and preparation method thereof |
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Application publication date: 20151021 Assignee: JIANGSU SISHUI TEXTILE CO., LTD. Assignor: Southwest University Contract record no.: 2019320000047 Denomination of invention: Formaldehyde-free lining cloth adhesive and preparation method of formaldehyde-free lining cloth Granted publication date: 20190322 License type: Exclusive License Record date: 20190322 |
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