CN105256531A - Polyester fabric processing method - Google Patents
Polyester fabric processing method Download PDFInfo
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- CN105256531A CN105256531A CN201510767560.4A CN201510767560A CN105256531A CN 105256531 A CN105256531 A CN 105256531A CN 201510767560 A CN201510767560 A CN 201510767560A CN 105256531 A CN105256531 A CN 105256531A
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Abstract
The invention discloses a polyester fabric processing method. The method comprises the steps that on the first preset processing conditions, a polyester fabric is preprocessed through a NaOH solution, wherein the first preset processing conditions include that the water bath temperature ranges from 70 DEG C to 95 DEG C, the concentration of the NaOH solution ranges from 3% to 6%, and the preprocessing time ranges from 30 min to 60 min; on the second preset processing conditions, the preprocessed polyester fabric is impregnated in an intumescent flame retardant (IFR) solution for flame retardant processing, wherein the IFR solution comprises ammonium polyphosphate and melamine and pentaerythritol, and the second preset processing conditions include that the impregnation temperature of the preprocessed polyester fabric in the IFR solution ranges from 65 DEG C to 95 DEG C, the impregnation time of the preprocessed polyester fabric in the IFR solution ranges from 30 min to 120 min, the impregnation concentration of the IFR solution ranges from 40 g/L to 100 g/L, and the compound ratio of the ammonium polyphosphate to the melamine to the pentaerythritol is 1-8:0-1:1:1. The technical problems that an existing flame retardant processing cost is high, the technology is complex and the flame retardant performance is poor are solved.
Description
Technical field
The present invention relates to terylene manufacture field, in particular to a kind of processing method of dacron.
Background technology
Terylene is that a kind of production technology is simple, low-cost synthetic fiber, has durable, good springiness, not yielding, corrosion-resistant, insulation, the advantage such as well-pressed, quick-drying washable, for people extensively like.But because terylene belongs to combustible fibre, and along with molten drop phenomenon during burning, also can produce large calorimetric and smog, these conditions all limit popularizing of terylene to a great extent simultaneously.Therefore, the dacron developing fire resistance good is necessary and significant.
At present, the flame-retarded technology of terylene has been tending towards ripe, existing flame treatment mainly comprises: copolymerization method, the method refers to the polymerization stage at dacron, flame-retardant additive and dacron are carried out polycondensation reaction, prepare copoly type flame retardant polyester fabric, also can on the molecule of dacron the fire-retardant group of grafting, then prepare the method for flame retardant polyester fabric through other technological process; Blending method, the method refers in dacron spinning process, adds the fire retardant of fabric to its spinning melt, prepares the method for flame retardant polyester fabric; Certainly, the methods such as post treatment method are also had.But, adopt said method or technical sophistication cost high (as copolymerization method), or its heat endurance and granule size required relatively stricter, fire resistance difference (as blending method).
For above-mentioned problem, at present effective solution is not yet proposed.
Summary of the invention
Embodiments provide a kind of processing method of dacron, high at least to solve existing flame treatment cost, technical sophistication and the technical problem of fire resistance difference.
According to an aspect of the embodiment of the present invention, provide a kind of processing method of dacron, comprising:
Under the first predetermined process condition, by NaOH solution, preliminary treatment is carried out to dacron; Wherein, described first predetermined process condition comprises: bath temperature is 70 DEG C to 95 DEG C, and the concentration of described NaOH solution is 3% to 6%, and pretreatment time is 30 minutes to 60 minutes;
Under the second predetermined process condition, pretreated dacron is immersed in expansion type flame retardant IFR solution and carries out flame treatment, wherein, described IFR solution comprises APP and melamine and pentaerythrite, described second predetermined process condition comprises: the dipping temperature of described pretreated described dacron in described IFR solution is 65 DEG C to 95 DEG C, the dip time of described pretreated dacron in described IFR solution is 30 minutes to 120 minutes, the impregnation concentrations of described IFR solution is 40g/L to 100g/L, the compound proportion of described APP and melamine and pentaerythrite is 1-8: 0-1: 1.
Alternatively, described under the first predetermined process condition, by NaOH solution, preliminary treatment is carried out to dacron and comprise:
Under bath temperature is 90 DEG C of conditions, described dacron is put into concentration be 4% NaOH solution dipping 40 minutes.
Alternatively, described under the second predetermined process condition, pretreated dacron is immersed in IFR solution and carries out flame treatment and comprise:
Be 80g/L by described pretreated dacron in concentration, compound proportion is APP: melamine: pentaerythrite is flood 30 minutes in the IFR solution of 4: 1: 1, and dipping temperature is 75 DEG C.
Adopt the processing method of the dacron in the embodiment of the present invention, under the first predetermined process condition, by NaOH solution, preliminary treatment is carried out to dacron, wherein, this first predetermined process condition comprises: bath temperature is 70 DEG C to 95 DEG C, and the concentration of this NaOH solution is 3% to 6%, and pretreatment time is 30 minutes to 60 minutes, under the second predetermined process condition, pretreated dacron is immersed in expansion type flame retardant IFR solution and carries out flame treatment, wherein, this IFR solution comprises APP and melamine and pentaerythrite, this the second predetermined process condition comprises: the dipping temperature of this this dacron pretreated in this IFR solution is 65 DEG C to 95 DEG C, the dip time of this pretreated dacron in this IFR solution is 30 minutes to 120 minutes, the impregnation concentrations of this IFR solution is 40g/L to 100g/L, the compound proportion of this APP and melamine and pentaerythrite is 1-8: 0-1: 1.Like this, by above-mentioned first predetermined process condition and the second predetermined process condition, this dacron is processed, can obtain the dacron that fire resistance is higher, thus it is high to solve existing flame treatment cost, technical sophistication and the technical problem of fire resistance difference.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the processing method of a kind of optional dacron according to the embodiment of the present invention.
Detailed description of the invention
The present invention program is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
It should be noted that, term " first ", " second " etc. in description of the present invention and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged in the appropriate case, so as embodiments of the invention described herein can with except here diagram or describe those except order implement.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
Fig. 1 is the processing method of a kind of dacron according to the embodiment of the present invention, and as shown in Figure 1, the method comprises the steps:
Step S101, under the first predetermined process condition, by NaOH solution, preliminary treatment is carried out to dacron.
Wherein, this first predetermined process condition comprises: bath temperature is 70 DEG C to 95 DEG C, and the concentration of this NaOH solution is 3% to 6%, and pretreatment time is 30 minutes to 60 minutes.
Such as, bath temperature can be 70 DEG C, 80 DEG C, 90 DEG C or 95 DEG C; The concentration of this NaOH solution can be 3%, 4%, 5% or 6%; Pretreatment time can be 30 minutes, 40 minutes, 50 minutes or 60 minutes.
Preferably, in this step, under bath temperature is 90 DEG C of conditions, this dacron is put into concentration be 4% NaOH solution dipping 40 minutes.
Particularly, under bath temperature is 90 DEG C of conditions, this dacron is put into the NaOH solution dipping 40 minutes that concentration is 4%, and held for some time, then successively with 80 DEG C and 60 DEG C of washings, and cold wash extremely neutrality.
Wherein, dacron configuration of surface and internal structure can be changed after utilizing NaOH process, increase terylene surface roughness, produce micro-hole, namely the degree of crystallinity reducing terylene forms space, thus increase the contact area of polyster fibre and fire retardant, be conducive to the absorption of polyster fibre to fire retardant, the foreign material such as dirt, auxiliary agent, grease on dacron can be removed simultaneously.
It should be noted that, the first predetermined process condition in the invention process can be obtained by control variate method, illustratively, can by measuring the reduction rate of dacron and TENSILE STRENGTH respectively with bath temperature, the concentration of NaOH solution and the situation of change of pretreatment time determine the first predetermined process condition, wherein, reduction rate can be obtained by the difference of weight of dacron and the ratio of the weight of untreated dacron after the weight of untreated dacron and process, TENSILE STRENGTH can by controlling at WSM-20KN type computer electronic universal tester is tested.
Such as, to determine that pretreatment time is described, first determine that the concentration of NaOH solution is 4%, bath temperature is 90 degree, get dacron sample, preliminary treatment in the NaOH solution of 4% concentration, treatment temperature is 90 DEG C, and pretreatment time gets 30min respectively, 40min, 50min, 60min, then carries out the test of TENSILE STRENGTH, contrasts with the TENSILE STRENGTH of not carrying out pretreated terylene to the dacron sample after process, find out pretreatment time TENSILE STRENGTH being affected to minimum sample, experimental result is with reference to following table:
As can be seen from table, when pretreatment time is 30min, the loss of tensile strength rate of terylene is about 6.4%; When pretreatment time is 40min, the loss of tensile strength rate of terylene is about 11.9%; When pretreatment time is 60min, the loss of tensile strength of terylene 29.4%.As can be seen here, the loss of tensile strength rate of dacron increases with the growth of pretreatment time, when pretreatment time is 30min, the reduction rate of polyster fibre is 3.3%, this is because due to the time short, the chemical bond of terylene has little time fracture, pretreating effect is poor, but when pretreatment time is 50min, the reduction rate of polyster fibre is 9.3%, the loss of tensile strength rate of terylene is about 21.2%, loss of tensile strength rate is excessive, this is because due to the time long, the chemical bond of polyster fibre matrix surface is ruptured in a large number, therefore larger to the performance impact of terylene.In sum, be that 40min is comparatively suitable to the pretreatment time of terylene.
Certain above-mentioned experiment just illustrates, the present invention is not construed as limiting this, with reference to above-mentioned experiment, can repeat no more for the concentration of NaOH solution in the first predetermined process condition and the determination of bath temperature herein.
Step S102, under the second predetermined process condition, pretreated dacron is immersed in IFR (IntumescentFlameRetardant, expansion type flame retardant) solution and carries out flame treatment.
Wherein, this IFR solution comprises APP and melamine and pentaerythrite, this the second predetermined process condition comprises: the dipping temperature of this this dacron pretreated in this IFR solution is 65 DEG C to 95 DEG C, the dip time of this pretreated dacron in this IFR solution is 30 minutes to 120 minutes, the impregnation concentrations of this IFR solution is 40g/L to 100g/L, and the compound proportion of this APP and melamine and pentaerythrite is 1-8: 0-1: 1.Such as, the dipping temperature of this this dacron pretreated in this IFR solution can be 65 DEG C, 75 DEG C, 85 DEG C or 95 DEG C; The dip time of this pretreated dacron in this IFR solution can be 30 minutes, 60 minutes, 90 minutes or 120 minutes; The impregnation concentrations of this IFR solution can be 40g/L, 60g/L, 80g/L or 100g/L; The compound proportion of this APP and melamine and pentaerythrite can be: 1: 1: 1,2: 1: 1,3: 1: 1,4: 1: 1,5: 1: 1,6: 1: 1,7: 1: 1,8: 1: 1 or 1: 0: 1.
Preferably, in this step, be 80g/L by this pretreated dacron in concentration, compound proportion is APP: melamine: pentaerythrite is flood 30 minutes in the IFR solution of 4: 1: 1, and dipping temperature is 75 DEG C.
Like this, by above-mentioned first predetermined process condition and the second predetermined process condition, this dacron is processed, can obtain the dacron that fire resistance is higher, thus it is high to solve existing flame treatment cost, technical sophistication and the technical problem of fire resistance difference.
It should be noted that, the second predetermined process condition in the embodiment of the present invention also can be obtained by control variate method, illustratively, after this dacron sample carries out flame treatment, by measuring the rate of body weight gain of dacron sample and lighting the after flame time of this dacron sample after flame treatment and char length respectively with dipping temperature, in the impregnation concentrations of dip time and IFR solution and IPR solution, the situation of change of the compound proportion of APP and melamine and pentaerythrite determines this second predetermined process condition, wherein, rate of body weight gain can by the ratio of the weight of the dacron before the difference of the weight of the dacron before the weight of dacron after flame treatment and flame treatment and flame treatment.
Such as, to determine the dipping temperature of pretreated dacron in this IFR solution, first determine that the impregnation concentrations of this IFR solution is 100g/L, APP in IFR solution: melamine: pentaerythrite=3: 1: 1, dip time in this IFR solution is 40 minutes, dipping temperature is got 65 DEG C, 75 DEG C, 85 DEG C and 95 DEG C respectively and is investigated dipping temperature to the flame retardant effect of dacron sample, and experimental result is with reference to following table:
| Dipping temperature/DEG C | Rate of body weight gain/% | After flame time/s | Char length/cm |
| 65 | 10.37 | 8.81 | 8.3 |
| 75 | 12.05 | 5.33 | 4.3 |
| 85 | 11.48 | 10.34 | 7.9 |
| 95 | 8.77 | 11.88 | 11.7 |
As can be seen from the above table, dacron sample is after IFR flame treatment, and rate of body weight gain is the leading indicator of reflection fabric flame-retardant agent carrying capacity, and along with the rising of fire retardant IFR solution impregnation temperature, after process, the rate of body weight gain of dacron is fallen after rising.After IFR is fire-retardant the after flame time of dacron and the change of char length also roughly the same, illustrate that the fire resistance of dacron has a crest, namely 75 DEG C along with the change of fire retardant dipping temperature.When adopting this method to arrange dacron, according to the requirement to product anti-flammability, the fire retardant dipping temperature of fabric can be controlled, to obtain suitable flame retardant effect.
When in IFR solution, dipping temperature is 65 DEG C to dacron sample, after flame time is 8.8s, and char length is 8.3cm; When in IFR solution, dipping temperature is 75 DEG C to dacron sample, after flame time is 5.3s, and char length is 4.3cm; When in IFR solution, dipping temperature is 85 DEG C to dacron sample, after flame time is 10.3s, and char length is 7.9cm; When in IFR solution, dipping temperature is 95 DEG C to dacron sample, after flame time is 7.8s, and char length is 11.7cm.This shows, when in IFR solution, dipping temperature is 75 DEG C to dacron sample, dacron sample just can reach good flame retardant effect, but when dipping temperature is more than 75 DEG C in IFR solution for dacron sample, the flame retardant effect of terylene does not increase substantially.Therefore to the dipping temperature of the fire-retardant IFR solution of terylene be 75 DEG C comparatively suitable.
Certain above-mentioned experiment just illustrates, the present invention is not construed as limiting this, the determination of the dip time of pretreated dacron in this IFR solution, the impregnation concentrations of IFR solution and the compound proportion of APP and melamine and pentaerythrite in second predetermined process condition with reference to above-mentioned experiment, can have been repeated no more herein.
In the above embodiment of the present invention, the description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part described in detail, can see the associated description of other embodiments.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. a processing method for dacron, is characterized in that, comprising:
Under the first predetermined process condition, by NaOH solution, preliminary treatment is carried out to dacron; Wherein, described first predetermined process condition comprises: bath temperature is 70 DEG C to 95 DEG C, and the concentration of described NaOH solution is 3% to 6%, and pretreatment time is 30 minutes to 60 minutes;
Under the second predetermined process condition, pretreated dacron is immersed in expansion type flame retardant IFR solution and carries out flame treatment, wherein, described IFR solution comprises APP and melamine and pentaerythrite, described second predetermined process condition comprises: the dipping temperature of described pretreated described dacron in described IFR solution is 65 DEG C to 95 DEG C, the dip time of described pretreated dacron in described IFR solution is 30 minutes to 120 minutes, the impregnation concentrations of described IFR solution is 40g/L to 100g/L, the compound proportion of described APP and melamine and pentaerythrite is 1-8: 0-1: 1.
2. processing method according to claim 1, is characterized in that, described under the first predetermined process condition, carries out preliminary treatment comprise by NaOH solution to dacron:
Under bath temperature is 90 DEG C of conditions, described dacron is put into concentration be 4% NaOH solution dipping 40 minutes.
3. processing method according to claim 1, is characterized in that, described under the second predetermined process condition, is immersed in by pretreated dacron in IFR solution to carry out flame treatment and comprise:
Be 80g/L by described pretreated dacron in concentration, compound proportion is APP: melamine: pentaerythrite is flood 30 minutes in the IFR solution of 4: 1: 1, and dipping temperature is 75 DEG C.
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| CN201510767560.4A CN105256531A (en) | 2015-11-05 | 2015-11-05 | Polyester fabric processing method |
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| CN201510767560.4A CN105256531A (en) | 2015-11-05 | 2015-11-05 | Polyester fabric processing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105839399A (en) * | 2016-03-31 | 2016-08-10 | 东华大学 | Catalysis carbonization intumescent flame-retardant system and application thereof |
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| CN102392356A (en) * | 2011-07-07 | 2012-03-28 | 公安部四川消防研究所 | Manufacturing technique of wash-resistant and flame-retardant blended fabric |
| CN104499269A (en) * | 2014-09-30 | 2015-04-08 | 扬州腾飞电缆电器材料有限公司 | Aqueous emulsion expansion-type fireproof mixed liquor and processing technology for preparing low-smoke halogen-free high-flame resistance wrapping tape |
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| CN105839399A (en) * | 2016-03-31 | 2016-08-10 | 东华大学 | Catalysis carbonization intumescent flame-retardant system and application thereof |
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