CN102539429A - Temperature indication card and manufacture method thereof - Google Patents
Temperature indication card and manufacture method thereof Download PDFInfo
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- CN102539429A CN102539429A CN2010106196351A CN201010619635A CN102539429A CN 102539429 A CN102539429 A CN 102539429A CN 2010106196351 A CN2010106196351 A CN 2010106196351A CN 201010619635 A CN201010619635 A CN 201010619635A CN 102539429 A CN102539429 A CN 102539429A
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- nickel
- indicating card
- humidity indicating
- compound containing
- hydrophilic macromolecule
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Abstract
The invention provides a humidity indication card and a manufacture method of the humidity indication card. The humidity indication card comprises a base and a composite material, wherein the composite material is arranged on a region of the base and comprises a hydrophilic macromolecule and a nickel-containing compound.
Description
Technical field
The present invention system is about a kind of humidity indicating card and manufacturing approach thereof, especially in regard to a kind of humidity indicating card and manufacturing approach thereof with nickel compound containing.
Background technology
Humidity indicating card is used for indicating relative humidity size in the packing of product container, and is general with the main material of cobalt chloride as the moisture absorption variable color.Yet, because cobalt chloride system is for poisonous chemicalization matter and classified as second type carcinogenic substance (the contact amount surpasses the easy cause cancer of 100ppm); In addition, different article are neither together to sensitivity, the tolerance of humidity, thus need to develop the material prescription that meets environmental regulation and the different variable color speed of tool, in order to the use of different demands.
United States Patent (USP) 2,460,072 and 2,460,067 exposure is indicated material with cupric chloride or copper bromide as humidity, has toxicity equally and does not meet the environmental protection demand yet contain these chloride materials.
United States Patent (USP) 6,663,679 exposure are substrate with coloured indication material, cover the salt of meeting moisture absorption deliquescence on it, by the salt deliquescence, the indication material color that manifests reaches the purpose that indication humidity changes, but this mode only is used for irreversible indication.
Disclose in the United States Patent (USP) 6753184 and 6927063 and use the compound of iron content to indicate material as humidity; Yet its change color degree of humidity indication material that contains these iron containing compoundses is also not obvious; Can't reach and to know the purpose of differentiating humidity, and need a higher process temperatures (145 ℃) to reach the long processing procedure time (16 hours).
Therefore, at present industry still needs a kind of material of not having toxicity and an obvious change color of tool, to be applied to humidity indicating card.
Summary of the invention
The present invention system, also has obvious color and changes except that meeting present environmental regulation about a kind of humidity indicating card of reusable no cobalt Halogen behind adsorbed moisture.In addition, the present invention is also about the manufacturing approach of this humidity indicating card, and it meets existing factory processing procedure, makings of can directly reaching the standard grade, and processing procedure simple, cheap, be easy to control.
The present invention provides a kind of humidity indicating card, comprises: a substrate; And a compound substance is disposed on one of this substrate zone, and wherein this compound substance comprises a hydrophilic macromolecule, reaches a nickel compound containing.
The present invention also provides a kind of manufacturing approach of humidity indicating card, comprises: the WS of preparing a nickel compound containing; Add a hydrophilic macromolecule (or hydrophilic macromolecule solution) in the WS of this nickel compound containing, obtain a composition; Said composition is dripped in a substrate; And, dry this substrate.。
Below by several embodiment and cooperate appended graphicly, with method, characteristic and the advantage that illustrates further the present invention, but be not the scope that is used for limiting the present invention, the present invention's scope should be as the criterion with appended claim.
Description of drawings
Fig. 1 system is the synoptic diagram of the said humidity indicating card of one embodiment of the invention.
Fig. 2 system is the part enlarged drawing of humidity indicating card shown in Figure 1.
Fig. 3 system is the part enlarged drawing of the humidity indicating card after the said absorption aqueous vapor of one embodiment of the invention.
Fig. 4 is the photo after showing its drying of the said humidity indicating card of embodiment 1-3 and absorbing aqueous vapor.
Fig. 5 is the photo after its absorption aqueous vapor of the said humidity indicating card of demonstration embodiment 5-10.
Symbol description
2～dotted line block;
10～substrate;
12～zone;
14～compound substance;
16～hydrophilic macromolecule;
18～nickel compound containing; And
100 humidity indicating cards.
Embodiment
The present invention provides a kind of humidity indicating card, comprises: a substrate; And a compound substance is disposed on one of this substrate zone, and wherein this compound substance comprises a hydrophilic macromolecule, reaches a nickel compound containing.
Please with reference to Fig. 1, humidity indicating card 100 according to the invention can comprise a substrate 10, and this substrate 10 has a zone 12.In this zone 12, be configuration one compound substance 14., be partial enlarged drawing please for the compound substance 14 dotted line blocks 2 in this zone 12 with reference to Fig. 2.Can know by Fig. 2; This compound substance 14 be by hydrophilic macromolecule 16, and 18 of nickel compound containings form; Wherein this nickel compound containing 18 is the material as the moisture absorption variable color; And the purpose of adding hydrophilic macromolecule is to utilize the hydrophilic-structure on the macromolecule, regulates and control rate of water absorption, reaches the target of indicative for environments relative humidity.After the aqueous vapor of this humidity indicating card 100, because the meeting colorific variation (for example being transformed into blueness by yellowish-brown) after absorbing aqueous vapor of this nickel compound containing 18 please with reference to Fig. 3, therefore can reach the humidity purpose of indicating at absorbing environmental.
It should be noted that; The hydrophilic macromolecule that this compound substance comprised and the part by weight of nickel compound containing can be optionally with (Different Weight of hydrophilic macromolecule and nickel compound containing is than the difference that can cause rate of water absorption with adjustment; Applicable to varying environment; Reach the purpose of indication humidity), in general the weight ratio of this hydrophilic macromolecule and nickel compound containing is between 10 to 0.2.If the weight ratio of this hydrophilic macromolecule and nickel compound containing surpasses 10, can be not good because of both mutual solubilities, cause and mix uneven phenomenon; Otherwise if the weight ratio of this hydrophilic macromolecule and nickel compound containing is lower than 0.2, because hydrophilic macromolecule is very few, colourity difference is not good.
In addition, the present invention also provides the manufacturing approach of above-mentioned humidity indicating card.The manufacturing approach of this humidity indicating card comprises following steps.At first, a nickel compound containing is soluble in water, and system is allotted a WS, and wherein the percentage by weight of this nickel compound containing can be between 2～60wt% (gross weight with this WS be a benchmark).Then, a hydrophilic macromolecule (or hydrophilic macromolecule solution) made an addition in this nickel compound containing WS mix, obtain a composition, wherein the weight ratio of this hydrophilic macromolecule and nickel compound containing is between 10 to 0.2.Then, said composition is dripped in one of substrate presumptive area.Because after the substrate of being selected for use system for having blotting, rapid draing and preventing the material of penetration property, therefore treated this substrate absorption said composition, this nickel compound containing and this hydrophilic macromolecule can be configured in this presumptive area.Then, can carry out a prebake conditions to this substrate, baking temperature is 50 ℃, and stoving time can be 30min.At last, an oven dry processing procedure is carried out in this substrate, wherein the temperature of this oven dry processing procedure can be 110～140 ℃, and dry the processing procedure required time can be less than 30 minutes, even can foreshorten in ten minutes.
The humidity indicating card of gained is reusable.Before each the repeated use, only need to get final product in 10～15 minutes with 140 ℃ of bakings, do not need prebake conditions at baking oven.
For let state on the present invention with other purposes, characteristic and advantage can be more obviously understandable, the special number embodiment that lifts of hereinafter cooperates appended diagram, elaborates as follows:
At first, get 3.0g nickelous sulfate (NiSO
4) will go in the 7.0g water, be configured to the NiSO of 30wt%
4The WS.Then, 3.3g polyglycol PEG200 (molecular weight is 200) is added in the entry, be configured to the WS that concentration is 0.2g/ml.Then, with the polyglycol PEG200 WS and NiSO
4Aqueous solution (NiSO
4With the weight ratio of PEG200 be 1.1: 1), and mixed 10 minutes down in 70 ℃.Then, the composition of gained is dripped on an indication paperboard,, and, obtain humidity indicating card according to the invention 110 ℃ of bakings 10 minutes down in 50 ℃ of prebake conditions 30 minutes.
Embodiment 2-3
Embodiment 4
The humidity indicating card of embodiment 1-3 gained is placed in the climatic chamber, and, observe the influence of macromolecule moisture absorption speed in 23 ℃ and 50%RH held 60 minutes.The result is as shown in Figure 4.Can know NiSO by Fig. 4
4Change with the weight ratio of PEG200, can make the moisture absorption speed of material produce differentiation.
Comparing embodiment 1
Comparing embodiment 1 is to carry out with embodiment 1 said same steps as, but does not add PEG200.
Embodiment 5-7
Embodiment 5-7 system carries out with the said same steps as of embodiment 1-3, but will change polyglycol PEG400 (molecular weight is 400) into the employed macromolecule polyethylene glycol PEG200 of embodiment 1-3 (molecular weight is 200).
Embodiment 8-10
Embodiment 8-10 system carries out with the said same steps as of embodiment 1-3, but will change polyglycol PEG4000 (molecular weight is 4000) into the employed macromolecule polyethylene glycol PEG200 of embodiment 1-3 (molecular weight is 200).
Embodiment 11
The humidity indicating card of comparing embodiment 1 and embodiment 5-10 gained is placed in the climatic chamber, and in 23 ℃ and 50%RH held 60 minutes, observe the influence of macromolecule to moisture absorption speed, the result is as shown in Figure 5
Do not add high molecular humidity indicating card (comparing embodiment 1); Back about 45 minutes begin to produce by the distinguishable change color of naked eyes in inserting climatic chamber; And other add high molecular humidity indicating card (embodiment 5-10); Then make an appointment with and to do sth. in advance 15 minutes generation change color, so macromolecule can help suction really and quicken change color.In addition, when its molecular weight of employed macromolecule increases gradually, then can produce the shielding phenomenon, the speed of nickelous sulfate contact moisture is slowed down.Therefore, its molecular weight of employed macromolecule is more little, and its water wettability is preferable, and absorption speed is very fast.Based on above-mentioned, the preferable system of its molecular weight ranges of hydrophilic macromolecule used herein is between 150～5000.
Embodiment 12-17
Embodiment 12-17 system carries out with embodiment 1 said same steps as, but will change polyglycol two contract acid (molecular weight is 600), polyethyleneglycol diacrylate (molecular weight is 575), polyglycol PEG2000 (molecular weight is 2000), polyvinyl alcohol (PVA) (molecular weight is 2000), polyacrylic acid (molecular weight is 1800), and polyacrylamide (molecular weight is 1500) respectively into embodiment 1 employed macromolecule polyethylene glycol PEG200 (molecular weight is 200).
The humidity indicating card of comparing embodiment 1 and embodiment 12-17 gained is placed in the climatic chamber, and in 23 ℃ and 70%RH held 60 minutes, the colourity difference of observing humidity indicating card, the result is as shown in table 1.
Table 1
The test mode system of humidity indicating card change color is to take a picture or spectrophotometric color measurement instrument observation and record, and the spectrophotometric color measurement instrument that is used is Minolta CM508.After standard white plate is proofreaied and correct, measure for 10 ° with CIE Illuminant C and viewing angle, use light source to be D65.
Can know by table 1, at NiSO
4Situation under, all hydrophilic macromolecules all can help to quicken the suction variable color.
Embodiment 19-24
Embodiment 19-24 system carries out with the said same steps as of embodiment 12-17, but with the employed NiSO of these embodiment
4Be replaced as the saturated nickel thiocyanide WS (Ni (SCN)
2).
Embodiment 25
The humidity indicating card of embodiment 19-24 gained is placed in the climatic chamber, and in 23 ℃ and 70%RH held 60 minutes, the colourity difference of observing humidity indicating card, the result is as shown in table 2.
Table 2
Can know by table 2, use Ni (SCN) instead
2After, no matter by taking a picture or calculating variation by colourity difference and all can know Ni (SCN)
2Variation is than NiSO
4Obviously, wherein maximum to add the polyethyleneglycol diacrylate change color.
Humidity indicating card according to the invention does not comprise cobalt and halogen, meets outside the present environmental regulation, and reusable.In addition; Humidity indicating card according to the invention also has obvious color behind adsorbed moisture changes, and under 5～60%RH, the variable color speed of this humidity indicating card can be according to the nickel metallic salt with high molecular different at humidity range; Reach different indication purposes, ask for an interview table 3.Moreover the present invention is also about the manufacturing approach of this humidity indicating card, meets existing factory processing procedure, makings of can directly reaching the standard grade, and processing procedure simple, cheap, be easy to control.
Table 3
Though the present invention discloses as above with preferred embodiment; Right its is not in order to limit the present invention; Anyly have the knack of this art; In spirit that does not break away from the present invention and scope, when can doing a little change and retouching, so the person of defining of claim institute that the present invention's protection domain attaches after looking is benchmark.
Claims (12)
1. humidity indicating card comprises:
One substrate; And
One compound substance is disposed on one of this substrate zone, and wherein this compound substance comprises a hydrophilic macromolecule, reaches a nickel compound containing.
2. humidity indicating card according to claim 1, wherein the weight ratio of this hydrophilic macromolecule and nickel compound containing is between 10 to 0.2.
3. humidity indicating card according to claim 1, wherein this nickel compound containing comprises nickelous sulfate, nickel acetate, nickel nitrate, nickelous carbonate, nickel thiocyanide, nickel sulfide or its combination.
4. humidity indicating card according to claim 1, wherein this hydrophilic macromolecule cording has hydrophilic radical, and wherein this hydrophilic radical comprises carboxylic acid group, ether, hydroxyl, ester group or amide group.
5. humidity indicating card according to claim 4, wherein this hydrophilic macromolecule comprises polyacrylic acid (PAA), polyacrylamide (PAM), polyvinyl alcohol (PVA) (PVA), polyglycol (PEG), polyglycol two contract acid (PEG diacid), polyethyleneglycol diacrylate (PEG diacrylate) or its mixing.
6. humidity indicating card according to claim 1, wherein the weight ratio of this hydrophilic macromolecule and nickel compound containing is between 10 to 0.2.
7. the manufacturing approach of a humidity indicating card comprises:
Prepare the WS of a nickel compound containing;
Add a hydrophilic macromolecule or hydrophilic macromolecule solution in the WS of this nickel compound containing, obtain a composition;
Said composition is dripped in a substrate; And
Dry this substrate.
8. humidity indicating card according to claim 7, wherein the weight ratio of this hydrophilic macromolecule and nickel compound containing is between 10 to 0.2.
9. humidity indicating card according to claim 7, wherein this nickel compound containing comprises nickelous sulfate, nickel acetate, nickel nitrate, nickelous carbonate, nickel thiocyanide, nickel sulfide or its combination.
10. humidity indicating card according to claim 7, wherein this hydrophilic macromolecule cording has hydrophilic radical, and wherein this hydrophilic radical comprises carboxylic acid group, ether, hydroxyl, ester group or amide group.
11. humidity indicating card according to claim 10, wherein this hydrophilic macromolecule comprises polyacrylic acid (PAA), polyacrylamide (PAM), polyvinyl alcohol (PVA) (PVA), polyglycol (PEG), polyglycol two contract acid (PEG diacid), polyethyleneglycol diacrylate (PEG diacrylate) or its mixing.
12. humidity indicating card according to claim 7, wherein the weight ratio of this hydrophilic macromolecule and nickel compound containing is between 10 to 0.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106196351A CN102539429A (en) | 2010-12-31 | 2010-12-31 | Temperature indication card and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106196351A CN102539429A (en) | 2010-12-31 | 2010-12-31 | Temperature indication card and manufacture method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102539429A true CN102539429A (en) | 2012-07-04 |
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ID=46346852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106196351A Pending CN102539429A (en) | 2010-12-31 | 2010-12-31 | Temperature indication card and manufacture method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105752462A (en) * | 2014-12-19 | 2016-07-13 | 中国航天科工集团八五研究所 | Desiccant packaging bag having humidity indication function and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04161840A (en) * | 1990-10-25 | 1992-06-05 | Tdk Corp | Humidity sensor and manufacture thereof |
| CN1201145A (en) * | 1997-05-02 | 1998-12-09 | 山武·霍尼韦尔公司 | Humidity sensitive element and mfg. method therefor |
| CN1834635A (en) * | 2005-03-17 | 2006-09-20 | 积创科技股份有限公司 | Moisture sensing element |
| CN101393134A (en) * | 2008-10-23 | 2009-03-25 | 杨德成 | Humidity indicators |
| TW201011276A (en) * | 2008-09-02 | 2010-03-16 | Eikme Internat Ltd | Humidity indication paper strip and method of manufacturing the same |
-
2010
- 2010-12-31 CN CN2010106196351A patent/CN102539429A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04161840A (en) * | 1990-10-25 | 1992-06-05 | Tdk Corp | Humidity sensor and manufacture thereof |
| CN1201145A (en) * | 1997-05-02 | 1998-12-09 | 山武·霍尼韦尔公司 | Humidity sensitive element and mfg. method therefor |
| CN1834635A (en) * | 2005-03-17 | 2006-09-20 | 积创科技股份有限公司 | Moisture sensing element |
| TW201011276A (en) * | 2008-09-02 | 2010-03-16 | Eikme Internat Ltd | Humidity indication paper strip and method of manufacturing the same |
| CN101393134A (en) * | 2008-10-23 | 2009-03-25 | 杨德成 | Humidity indicators |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105752462A (en) * | 2014-12-19 | 2016-07-13 | 中国航天科工集团八五研究所 | Desiccant packaging bag having humidity indication function and preparation method thereof |
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Application publication date: 20120704 |